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GE Revolution CT User Manual

GE Revolution CT User Manual

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Revolution CT
User Manual
OPERATING DOCUMENTATION
5480385-1EN
Revision 1

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Summary of Contents for GE Revolution CT

  • Page 1 Revolution CT User Manual OPERATING DOCUMENTATION 5480385-1EN Revision 1...
  • Page 2 Revolution CT User Manual Direction 5480385-1EN, Revision 1 This page left intentionally blank.
  • Page 3 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Revision History Revision Date Reason For Change August 2014 Initial release. The original language of this document is English, Direction Number 5480385-1EN, Revision 1. Revision History...
  • Page 4 Revolution CT User Manual Direction 5480385-1EN, Revision 1 This page left intentionally blank. Revision History...
  • Page 5: Table Of Contents

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 Table of Contents Chapter 1 USER INFORMATION......................37 1 Introduction............................37 2 User Documentation........................38 3 GE Approved Accessories......................39 Chapter 2 REGULATORY INFORMATION....................41 1 Applicable Regulations and Standards..................41 2 Product Description........................43 2.1 Intended Use of the System....................43 2.2 Indications for Use of the System..................43...
  • Page 6 Revolution CT User Manual Direction 5480385-1EN, Revision 1 4.5 Backup Timer Indicator......................62 4.6 Starting Scans from the Scan Room..................62 4.7 CTDI ..........................62 5 Implantable Device Safety......................64 5.1 Recommendations prior to scanning..................64 5.2 Recommendations after scanning..................64 6 Electrical Safety..........................65 7 Electromagnetic Compatibility Safety....................68...
  • Page 7 Revolution CT User Manual Direction 5480385-1EN, Revision 1 16 Accuracy of Measurements......................89 16.1 Measure Distance for Axial, Helical, and Cine Images............89 16.2 Measure Distance for Scout Images.................. 89 16.3 Measure Angle........................90 16.4 Voxel Dimensions.......................91 16.5 ROI............................. 91 16.6 CT Number......................... 91 16.6.1 CT Number Mean and Standard Deviation..............92...
  • Page 8 Revolution CT User Manual Direction 5480385-1EN, Revision 1 3.1 Icons and System Status Area................... 108 3.2 Reconstruction and Image Processing Area..............110 3.3 Image Viewports.........................112 3.4 File Manager........................113 4 User Interface Conventions......................116 4.1 Select items from a list...................... 116 4.2 Cancel ..........................116 4.3 Button and text appearance .....................
  • Page 9 Revolution CT User Manual Direction 5480385-1EN, Revision 1 3.4 Set up a pediatric or small patient exam................128 3.5 Adjust pediatric and small patient scan parameters............129 3.5.1 Adjust the parameters by size, age, weight, height, and indications......129 3.5.2 Consider decreasing the kV..................130 3.5.3 Center the patient properly when using SmartmA.............
  • Page 10 Revolution CT User Manual Direction 5480385-1EN, Revision 1 1.3.4 Dose Check AV Exceeding User................138 1.3.5 Protocol Change Control................... 138 2 Set the Dose Check Administrator Role..................139 3 Set the Dose Check AV Exceeding User Role................141 4 Configure the System for Dose Check..................143 5 Configure the AV by Age Threshold....................145...
  • Page 11 Revolution CT User Manual Direction 5480385-1EN, Revision 1 3.3 Gantry and console interfaces ..................169 3.3.1 Left rear plug-in panel....................170 3.3.2 Console AC power box..................... 171 3.4 Operate the gantry controls ....................172 3.5 Cardiac trigger monitor...................... 175 3.5.1 Integrated cardiac trigger monitor................175 3.5.2 External cardiac trigger monitor.................176...
  • Page 12 Revolution CT User Manual Direction 5480385-1EN, Revision 1 8.2 Generator Serial Load Rating.....................187 9 Purchasable Options........................189 Chapter 9 STARTUP AND SHUTDOWN..................... 191 1 Overview............................191 2 System Startup and Shutdown....................192 2.1 Prepare the system ......................192 2.2 Log On/Log Off........................192 2.2.1 Logon window......................192...
  • Page 13 Revolution CT User Manual Direction 5480385-1EN, Revision 1 2 Patient Schedule......................... 204 2.1 Schedule features......................204 2.1.1 Schedule window.......................204 2.1.2 Schedule columns..................... 204 2.1.3 Schedule buttons and icons..................205 2.1.4 Schedule dropdown menu..................206 2.2 New and completed records .....................207 2.3 Add a patient to the Schedule................... 207 2.4 Edit a patient in the schedule ...................
  • Page 14 Revolution CT User Manual Direction 5480385-1EN, Revision 1 2.2.2.5 Required image attributes for perfusion imaging ..........223 2.2.2.6 Contrast injection considerations..............223 2.2.2.7 Other considerations and references..............223 2.2.2.8 Recommended reading..................224 2.3 Total Scan Time......................... 226 2.4 Automatic Exposure Control....................227 2.4.1 How AEC works......................227 2.4.2 Adaptation to anatomy....................227...
  • Page 15 Revolution CT User Manual Direction 5480385-1EN, Revision 1 2.7.5 References........................ 244 3 Exam Workflow..........................245 3.1 Exam Workflow Concepts....................245 3.1.1 Positioning a patient ....................245 3.1.2 Using protocols ......................245 3.1.3 Using contrast......................245 3.2 Exam Workflow Windows....................245 3.2.1 Patient Information window..................245 3.2.2 Patient Position area....................246...
  • Page 16 Revolution CT User Manual Direction 5480385-1EN, Revision 1 4.1.2 Helical........................265 4.1.3 Cardiac Axial......................265 4.1.4 Cine........................... 265 4.1.5 Hi Res Mode......................265 4.1.6 Rotation Time......................266 4.2 Coverage Speed collection....................266 4.3 kV and mA Control......................270 4.3.1 kV Mode........................270 4.3.1.1 Manual kV Mode....................270 4.3.1.2 kV Assist kV Mode....................271...
  • Page 17 Revolution CT User Manual Direction 5480385-1EN, Revision 1 5.1 Timing Parameters collection..................... 287 5.2 Timing parameters workflow ....................287 5.2.1 Set Prep Delay time ....................287 5.2.2 Set Inter Scan Delay time..................288 6 Recon Parameters........................289 6.1 Recon Parameter descriptions................... 289 6.1.1 Recon Type....................... 289 6.1.2 Hi Res........................
  • Page 18 Revolution CT User Manual Direction 5480385-1EN, Revision 1 7.2 Set the Auto Voice language .................... 301 7.3 Set the Voice/Lights/Timer options ..................302 7.4 Change the Auto Voice preset delay ................. 302 8 Additional Scan Features......................303 8.1 Add or delete a group ....................... 303 8.1.1 Add a group ......................
  • Page 19 Revolution CT User Manual Direction 5480385-1EN, Revision 1 2.4 ASiR-V Image annotation ....................311 2.5 Acquire a scan ........................311 3 SmartPrep........................... 312 3.1 SmartPrep Workflow......................312 3.2 SmartPrep Windows/Elements..................313 3.2.1 SmartPrep Baseline Setup window................313 3.2.2 Monitor Phase Setup window..................316 3.2.3 Monitor Phase window....................317...
  • Page 20 Revolution CT User Manual Direction 5480385-1EN, Revision 1 2.1.4 IV setup and contrast ....................333 2.2 Attach ECG electrodes to the patient................. 333 2.2.1 Adjust ECG Trigger Device Settings................337 2.2.1.1 User Console....................337 2.2.1.2 Gantry Display....................337 2.2.1.3 External ECG Trigger Device................337 2.2.2 Check Electrode Impedance..................337...
  • Page 21 Revolution CT User Manual Direction 5480385-1EN, Revision 1 3.5.1.7 Adaptive Gating....................351 3.5.1.8 Cardiac Phase Background................351 3.5.2 Coverage Speed......................353 3.5.2.1 Detector Coverage (mm).................. 353 3.5.2.2 Single Table Position..................353 3.5.2.3 Number of Passes.................... 353 3.5.2.4 Minimum Time Between Passes..............353 3.6 Display an ECG Trace on the operator console..............
  • Page 22 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Chapter 14 VIEW IMAGES........................371 1 Overview............................371 1.1 Viewports Overview......................371 1.2 File Manager Overview.......................372 1.3 Reconstruction and Image Processing Overview...............373 1.4 Additional Considerations....................373 2 Image Display..........................374 2.1 Access images in File Manager ..................374 2.1.1 Selecting images in File Manager................375...
  • Page 23 Revolution CT User Manual Direction 5480385-1EN, Revision 1 3.8 Move images within a viewport ..................392 3.9 Inverse the video display ....................392 3.10 Adjust the W/L ........................ 392 3.10.1 Mouse ........................393 3.10.2 Function keys ......................393 4 Measurements..........................394 4.1 Measure a density reading ....................394 4.2 Use MIROI density reading to calculate bolus timing............
  • Page 24 Revolution CT User Manual Direction 5480385-1EN, Revision 1 3.1 Reformat Tools panel......................420 3.1.1 Icons.......................... 421 3.1.2 Reformat processing order..................422 3.1.3 Processing and transfer status indicators..............422 3.1.4 Reformat Settings panel.................... 422 3.1.4.1 Protocol settings....................423 3.1.4.2 Batch Options....................424 3.1.4.3 Output Options ....................425...
  • Page 25 Revolution CT User Manual Direction 5480385-1EN, Revision 1 2 Reformat............................443 2.1 Open Reformat ......................... 443 2.2 Use the Reformat Image Controls ..................443 2.2.1 Rotate freehand or page images ................444 2.2.2 Zoom (magnify) images ................... 444 2.2.3 Roam (pan) images ....................444 2.2.4 Select objects ......................
  • Page 26 Revolution CT User Manual Direction 5480385-1EN, Revision 1 3.11.4 Measure volume...................... 461 3.12 Manage Colormaps......................461 3.13 Add an ROI ........................462 4 View Types ..........................464 4.1 Create a Curved view ....................... 464 4.2 Create an X Section Histogram view.................464 4.3 Create an MPVR view ...................... 465 4.4 Create a Profile view ......................
  • Page 27 Revolution CT User Manual Direction 5480385-1EN, Revision 1 6.5 Paint On Slices ......................... 488 6.6 Add/Remove anatomy with Auto Select ................489 6.7 Remove floaters ....................... 489 6.8 Threshold an image ......................490 7 Batch Film............................492 7.1 Batch types ........................492 7.2 Batch protocol ........................492 7.3 Preview, film, or save a batch ...................492...
  • Page 28 Revolution CT User Manual Direction 5480385-1EN, Revision 1 2.2.1.3 Archive Status icons..................511 2.2.2 Right mouse options in the exam list................. 511 2.2.3 Sorting the Exam List....................513 2.2.4 Deleting exams......................513 2.2.5 Configuring the Exam List..................513 2.2.5.1 Choosing which columns to display..............513 2.2.5.2 Changing the width of columns.................514...
  • Page 29 Revolution CT User Manual Direction 5480385-1EN, Revision 1 4.3 Local DB Retrieve Exams, Series, or Images..............527 4.4 Manually Send Exam, Series or Images................528 4.5 View the Backlog/Queue....................529 4.6 Eject (Detach) Media......................529 4.7 Check the Network History....................530 4.8 Workarounds........................
  • Page 30 Revolution CT User Manual Direction 5480385-1EN, Revision 1 9.3 Completed Recon Management Window................566 10 Reconstruction and Image Processing Task List..............567 10.1 Reconstruction and Image Processing Task List window..........567 10.2 Reconstruction in the Reconstruction and Image Processing Task List......569 10.2.1 Adding a recon......................569...
  • Page 31 Revolution CT User Manual Direction 5480385-1EN, Revision 1 2.11 Series Numbering......................582 3 Auto Voice Management......................584 3.1 Add an Auto Voice language....................584 3.2 Delete an Auto Voice language..................585 3.3 Record an Auto Voice message..................585 3.4 Delete an Auto Voice message..................586 4 kV Assist Settings........................588...
  • Page 32 Revolution CT User Manual Direction 5480385-1EN, Revision 1 2.7.2 Group Restricted Fields..................... 599 2.8 Add an enterprise group..................... 600 2.9 Add or remove a user from a group..................601 2.10 Change a user's full name....................602 2.11 Change a user's password....................603 2.12 Prompt a user to change password..................603...
  • Page 33 Revolution CT User Manual Direction 5480385-1EN, Revision 1 3.4 Set Patient Data Entry Preferences..................622 3.4.1 Patient Data Entry Presets..................622 3.4.1.1 Add Patient Data Entry Preset................622 3.4.1.2 Edit Patient Data Entry Preset................623 3.4.1.3 Delete Patient Data Entry Preset..............623 3.4.2 Contrast........................623 3.4.2.1 Add Contrast.....................624...
  • Page 34 4.1 Purpose of Revolution CT Scanner Connection to Network..........641 4.2 Network Interface Technical Specifications................641 4.3 Network Information Flows Specifications................641 4.4 Required characteristics and configuration for network support of Revolution CT Scanner specifications...................644 4.4.1 Remote Host Parameters..................644 4.4.2 Archive Node Settings....................644 4.5 Network Compatibility......................644...
  • Page 35 Revolution CT User Manual Direction 5480385-1EN, Revision 1 6 Image Display..........................653 6.1 CT Number......................... 653 6.2 Pixels..........................654 6.3 Pixel Coordinates....................... 654 6.4 RAS Coordinates........................655 6.5 Pixels and CT Numbers......................658 6.6 Window Width........................658 6.7 Window Level........................658 7 Scout Based Attenuation Characterization..................659 Appendix A OPERATOR MESSAGES....................665...
  • Page 36 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Appendix F AUTO GATING PROFILES....................691 1 Auto Gating Profiles........................691 Table of Contents...
  • Page 37: Chapter 1 User Information

    Anyone who operates this system should have received prior training before they attempt to scan patients. This training should include medical and X-ray education, If necessary, additional training is available from a GE Applications Specialist. Contact your institution’s GE Healthcare sales representative for additional information about further safety and operational training. This manual does not provide medical explanations, but it does suggest potential applications for some of the software features.
  • Page 38: User Documentation

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 2 User Documentation Description The user documentation is designed for safe and effective use of the system, and is divided into the following parts: 1. User Manual: This manual contains all the user information required to operate the scanner in a safe and proper manner.
  • Page 39: Ge Approved Accessories

    Direction 5480385-1EN, Revision 1 3 GE Approved Accessories With each use, check all accessories for damage and remove them from service if damaged or cracked. Use only GE approved equipment together with this system. Table 1: GE Approved Accessories Types and Models Type...
  • Page 40 Revolution CT User Manual Direction 5480385-1EN, Revision 1 This page left intentionally blank. 3 GE Approved Accessories...
  • Page 41: Chapter 2 Regulatory Information

    The Revolution CT system complies with IEC 60601-1:1988, UL60601-1, EN60601-1:1990. The Revolution CT system complies with IEC 60601-1:2005, ES60601-1, EN60601-1:2006. • All portions of the Revolution CT system are suitable for use in the patient environment. • The system should be used only with GE approved equipment.
  • Page 42 Revolution CT User Manual Direction 5480385-1EN, Revision 1 This product complies with the requirements of the following regulations and standards: Council Directive 93/42/EEC concerning medical devices when it bears the following CE marking of conformity: Authorized representative for Europe/European registered place of business:...
  • Page 43: Product Description

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 2 Product Description 2.1 Intended Use of the System The system is intended for head, whole body, cardiac, and vascular X-ray Computed Tomography applications. 2.2 Indications for Use of the System The system is intended to produce cross-sectional images of the body by computer reconstruction of X-ray transmission projection data from the same axial plane taken at different angles.
  • Page 44: Product Manufacturer

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 3 Product Manufacturer This section lists the manufacturer of the Revolution CT product. Table 1: Revolution CT Product Manufacturer Model Name Manufacturer Manufacturer Address Manufacturing Site Revolution CT GE Medical Systems 3000 N. Grandview Blvd.
  • Page 45: Chapter 3 Safety

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 Chapter 3 Safety 1 General Safety Guidelines This chapter provides information about safety precautions and procedures. It is important for you to read and understand the contents of this chapter so the correct precautions and procedures are followed.
  • Page 46 Revolution CT User Manual Direction 5480385-1EN, Revision 1 ○ Immediately contact the local service office, report the incident and await further instructions. • The images and calculations provided by this system are intended as tools for the competent user. They are explicitly not to be regarded as a sole incontrovertible basis for clinical diagnosis.
  • Page 47: Safety Conventions

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 2 Safety Conventions This manual addresses three safety classifications: DANGER THE MOST SEVERE LABEL DESCRIBES CONDITIONS OR ACTIONS WHICH RESULT IN A SPECIFIC HAZARD. YOU WILL CAUSE SEVERE OR FATAL PERSONAL INJURY, OR SUBSTANTIAL PROPERTY DAMAGE IF YOU IGNORE THESE INSTRUCTIONS.
  • Page 48: Symbols And Warning Labels

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 3 Symbols and Warning Labels 3.1 Symbols This chapter uses the international symbol or icon along with the danger, warning or caution message. Table 1: Symbols Used in Labeling Symbol Description Alternating current...
  • Page 49 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Symbol Description Caution or warning Hand Pinch Radiation Maximum Weight Capacity Emergency Stop ETL Mark: Proof of product compliance (electrical, gas and other safety stand‐ ards) to North American safety standards. Authorities Having Jurisdic‐...
  • Page 50 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Symbol Description WEEE: This symbol indicates that when the end-user wants to discard this product, it must be sent to separate collection facilities for recovery and recy‐ cling. CE Mark: Manufacturer's declaration that the product complies with the essen‐...
  • Page 51 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Symbol Description Date of manufacture Serial number Catalog number X-Ray filtration (Al Equivalent Filtration) Minimum filtration Laser symbol Extra large focal spot Large focal spot Small focal spot Chapter 3 Safety...
  • Page 52: Equipment Warning Labels

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 3.2 Equipment Warning Labels The following Warning Labels are used on the equipment: 3.2.1 Laser Warning Labels Illustration 1: Warning labels located at the bottom of the gantry cover (Reference 21CFR 1040.10 (g)(4))
  • Page 53: X-Ray Warning Labels

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 3: Labels on the front of gantry, rear of table, back of PDU, back of Scanner Desktop, and side of System Cabinet. CAUTION Avoid Injury. Read and understand information in manuals before operating product.
  • Page 54: Power Distribution Unit (Pdu) Warning Labels

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 WARNING AVOID INJURY. FINGER PINCHING CAN CAUSE PHYSICAL INJURY. KEEP FINGERS AWAY FROM THIS AREA BEFORE MOVING THE CRADLE. Illustration 6: Weight limit warning label located on the table WARNING AVOID INJURY. DO NOT EXCEED TABLE MAXIMUM CAPACITY OF 227 KG (500 LB).
  • Page 55: Scanner Desktop Labels

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 CAUTION PDU can move and damage cables. Do not lean on or move when connected to power. Illustration 9: WEEE Label 3.2.5 Scanner Desktop Labels Illustration 10: Label on reading manuals before operating CAUTION Avoid Injury.
  • Page 56 Revolution CT User Manual Direction 5480385-1EN, Revision 1 You may also see this statement as a warning. Illustration 13: IV pole warning label on leg of IV pole WARNING DO NOT LOAD MORE THAN 4.5 KG OR 10 POUNDS. VERIFY THAT EXTENSION COLLAR IS SECURELY TIGHTENED BEFORE USE.
  • Page 57 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 16: Axial head holder caution CAUTION Accessory may fall and cause injury if not latched to cradle. Make sure that accessory is latched to underside of cradle. Excessive weight can break accessory and cause injury.
  • Page 58 Revolution CT User Manual Direction 5480385-1EN, Revision 1 CAUTION Do not hit the accessory against the gantry. Patient injury or equipment damage could result. You may also see this statement as a warning. Illustration 19: Coronal head holder warning WARNING FALL AND IMPACT HAZARDS.
  • Page 59: Radiation Safety

    All persons authorized to use the equipment must understand the dangers posed by X-ray exposure so that they can prevent any injury or damage that may result from such exposure. GE Healthcare urges you to use protective materials and devices to prevent any injury or damage from X-ray exposure.
  • Page 60: General Radiation Safety

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 4.2 General Radiation Safety WARNING NEVER SCAN A PATIENT WITH UNAUTHORIZED PERSONNEL IN THE SCAN ROOM. WARN VISITORS AND PATIENTS ABOUT POTENTIAL FOR HARM IF THEY FAIL TO FOLLOW INSTRUCTIONS. WARNING NEVER CALIBRATE, TEST THE SYSTEM, OR WARM THE TUBE WITH PATIENTS OR PERSONNEL PRESENT IN THE SCAN ROOM WITHOUT ADEQUATE RADIATION SAFETY PRECAUTIONS BEING UTILIZED.
  • Page 61: Scans Acquired At The Same Tomographic Plane

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 WARNING USE OF CONTROLS OR ADJUSTMENTS, OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN, MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. 4.3 Scans Acquired at the Same Tomographic Plane IEC standard 60601-2-44:2009, clause 203.107 states that you must be warned when scans are acquired at the same tomographic plane, i.e.
  • Page 62: Backup Timer Indicator

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 4.5 Backup Timer Indicator The system has backup timers that terminate the X-ray if it remains on longer than the prescribed scan time. A warning message is posted when a scan is stopped by the backup timer.
  • Page 63 Revolution CT User Manual Direction 5480385-1EN, Revision 1 The Accumulated DLP displays the total exam DLP up to the current point in time. Scout dose is not included in the DLP totals since standards for reporting scout dose are not yet defined.
  • Page 64: Implantable Device Safety

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 5 Implantable Device Safety WARNING CT SCANS MAY CAUSE INTERFERENCE WITH IMPLANTED OR EXTERNALLY WORN ELECTRONIC MEDICAL DEVICES SUCH AS PACEMAKERS, DEFIBRILLATORS, NEUROSTIMULATORS AND DRUG INFUSION PUMPS. THE INTERFERENCE COULD CAUSE OPERATIONAL CHANGES OR MALFUNCTION OF THE ELECTRONIC MEDICAL DEVICE.
  • Page 65: Electrical Safety

    REPAIR, OR MODIFY THE EQUIPMENT. TO GUARANTEE SAFE, RELIABLE EQUIPMENT PERFORMANCE, PREPARE THE SITE ACCORDING TO GE HEALTHCARE REQUIREMENTS. THIS INCLUDES MAKING SURE THE EQUIPMENT IS CONNECTED TO A SUPPLY MAINS WITH A PROTECTIVE EARTH. IF YOU HAVE ANY QUESTIONS ABOUT THESE REQUIREMENTS, CONTACT GE HEALTHCARE.
  • Page 66 • Do not connect electric devices to the CT System that are not approved by GE. Do not connect additional extension cords or outlet strips. It may create increased electrical leakage current and there is possibility of electric shock.
  • Page 67 Revolution CT User Manual Direction 5480385-1EN, Revision 1 The design of the CT scanner uses an equal potential grounding system. All components within the system are provided power on a common ground, so all the components are suitable for use in the patient environment.
  • Page 68: Electromagnetic Compatibility Safety

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 7 Electromagnetic Compatibility Safety The system needs special precautions regarding EMC and needs to be installed and put into service according to the EMC information provided in the Technical Reference Manual. Use of RF (Radio Frequency) sources that intentionally transmit, such as cellular telephones, transceivers, radio-controlled products, or other RF emitting equipment may cause performance outside the system's published specifications or other adverse operation.
  • Page 69: Fire Safety

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 8 Fire Safety DANGER THIS DEVICE IS NOT SUITABLE FOR USE IN THE PRESENCE OF A FLAMMABLE ANESTHETIC MIXTURE WITH AIR, OR IN THE PRESENCE OF A FLAMMABLE ANESTHETIC MIXTURE WITH OXYGEN OR NITROUS OXIDE.
  • Page 70: Mechanical Safety

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 9 Mechanical Safety 9.1 General Mechanical Safety WARNING DO NOT USE THE TABLE BASE AS A FOOT REST. YOU COULD ENTRAP AND INJURE YOUR FOOT WHILE LOWERING THE TABLE. DO NOT PLACE YOUR HANDS BETWEEN THE TABLE BASE AND THE TABLE SIDE PANELS.
  • Page 71 Revolution CT User Manual Direction 5480385-1EN, Revision 1 CAUTION When using the external laser alignment light for patient positioning purposes, be aware that the patient's elevation may be slightly lower with the cradle extended than with the cradle fully retracted. This is because the cradle may bend slightly under a patient's weight.
  • Page 72 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 24: Table CAUTION If the table is lowered with anything in the designated area below the table, the table could be damaged along with the equipment or object under the table.
  • Page 73: Gantry Air Inlets

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 CAUTION Care should be taken to ensure the patient positioning straps, patient clothing, or other material will not be caught during table motion. CAUTION The patient head holder or table extender should be adequately secured to ensure stability.
  • Page 74: Emergency Devices And Emergency Egress

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 10 Emergency Devices and Emergency Egress (Reference 21CFR 1020.33 (f)(2)(ii)) 10.1 Emergency Devices The system has two types of Emergency buttons: 1. Emergency Stop — When pressed, all table and gantry motions are halted, generation of X- rays is stopped, laser alignment lights are turned off.
  • Page 75: System Emergency Off Buttons Using Main Disconnect Control

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 27: Rear cover of the gantry • One on the Scan Control Interface. Illustration 28: Scan Control Interface Number Description Emergency Stop Button Press an Emergency Stop button in the event of a patient related emergency or if the cradle, table or gantry starts to move unexpectedly.
  • Page 76: Emergency Patient Care During X-Ray On

    System Emergency OFF button can corrupt system files or result in loss of patient data. The facility designer determines the quantity and locations of the Emergency OFF buttons. GE recommends placing an Emergency OFF button near the doorway of every room in the system scan suite.
  • Page 77: Laser Safety

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 11 Laser Safety (Reference 21CFR 1040.10 (h) 21CFR1020.33 (g)(4)) A laser alignment light system is available in order to accurately define the patient scan region. The sagittal, coronal, and transverse alignment lights are within ±1 mm of the gantry coordinate system (x, y and z-axis) centered at gantry isocenter.
  • Page 78 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 29: Secondary gantry display • Warning labels regarding laser safety are provided on the gantry, as described in the Warning Labels and Symbols section. Maintenance • Laser alignment lights do not require user maintenance.
  • Page 79: Reconstructed Image Orientation

    12 Reconstructed Image Orientation CAUTION GE CT image reconstruction is in an orientation viewing from the patient's feet. The reconstructed orientation is the orientation the image is installed in the image data base and is the orientation images are networked with to a remote viewing station.
  • Page 80 Revolution CT User Manual Direction 5480385-1EN, Revision 1 WARNING THE SYSTEM POSTS A WARNING MESSAGE IF PATIENT ORIENTATION HAS BEEN CHANGED OR DOES NOT MATCH AFTER START OF EXAM. 12 Reconstructed Image Orientation...
  • Page 81: Data Safety

    SCAN DATA STORAGE SPACE IS GETTING LOW. PLEASE FINISH ACTIVE RECONSTRUCTIONS AND UNRESERVE OBSOLETE SCAN DATA . WARNING DO NOT LOAD ANY NON-GE APPROVED SOFTWARE ONTO THE COMPUTER. WARNING THE SYSTEM POSTS A WARNING MESSAGE IF THERE IS A FAILURE DURING THE ARCHIVE OF PATIENT DATA.
  • Page 82 The Patient Schedule chapter is in the User Manual. CAUTION When comparing GE CT images with other images, consult the DICOM Conformance Statement for the details on the DICOM Image Position, Frame of Reference UID and Slice Location values stored.
  • Page 83: Application Specific Safety Topics

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 14 Application Specific Safety Topics 14.1 Axial and Helical Scanning WARNING HELICAL SCANNING HAS THE INHERENT ABILITY TO PRODUCE ARTIFACTS WHEN SCANNING HIGHLY SLOPED ANATOMY (E.G. PEDIATRIC OR ADULT HEADS). FACTORS WHICH WORSEN THIS EFFECT ARE: FASTER TABLE SPEEDS AND THICKER IMAGE THICKNESS.
  • Page 84 It is important to place new leads on the patient before the scan. Make sure the leads are attached properly, and use only GE recommended ECG leads. It is important to confirm ECG trace clarity before the scan.
  • Page 85: Ct Integrated Cardiac Module

    NON-GE ACQUIRED IMAGES CAN BE LOADED IN VOLUME VIEWER BUT GE DOES NOT GUARANTEE THE QUALITY OR RELIABILITY OF ANY RECONSTRUCTION, SEGMENTATION OR MEASUREMENTS PERFORMED ON THESE IMAGES. NON-GE IMAGES CAN EASILY BE IDENTIFIED BY THE CORRESPONDING IMAGE ANNOTATION. FOLLOW THE DICOM ACQUISITION PARAMETER GUIDELINES LISTED IN EACH APPLICATION USER GUIDE.
  • Page 86: Segment Tools

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 CAUTION The software calculates and displays measurements with a resolution of one decimal (such as 0.1 mm, 0.1 degree, etc.). You should be aware that the real measurement accuracy is generally less for a number of different reasons (image resolution, acquisition conditions…).
  • Page 87 Revolution CT User Manual Direction 5480385-1EN, Revision 1 CAUTION When saving images with a new series description, make sure this description matches the saved images. CAUTION Check with original dataset, the reliability of segmentations and measurements performed in Saved objects after post processing and reloading.
  • Page 88: Application Software Safety

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 15 Application Software Safety CAUTION Do not initiate an SPR Snap if the system is actively collecting data with X-ray 15 Application Software Safety...
  • Page 89: Accuracy Of Measurements

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 16 Accuracy of Measurements This section includes information on accuracy of measurements used when reviewing images. 16.1 Measure Distance for Axial, Helical, and Cine Images CAUTION Measure error using the straight line distance graphic is ± the largest voxel dimension.
  • Page 90: Measure Angle

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 31: Scout Scan Plane Number Description ISO center Y-axis X-axis Z-axis x-ray tube focal spot scan plane patient table 16.3 Measure Angle CAUTION Measurement accuracy using the angle graphic is equal to the displayed angle value ±...
  • Page 91: Voxel Dimensions

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 16.4 Voxel Dimensions CAUTION The image set resolution, that is, the dimensions of the voxels (volume elements) that constitute the image set, is determined by the size of the field-of-view, the matrix size, and the inter-slice distance. Ideally, voxels should be isotropic (with the same dimensions along all three axes).
  • Page 92: Ct Number Mean And Standard Deviation

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 one of the 256 shades of gray. Vary the gray scale window width and level to select anatomy for display. Window Width determines the quantity of gray pixel values. Window Level selects the center Window Width pixel value.
  • Page 93: Accessory Safety

    CRADLE AND MAY CAUSE INJURY. IF AN ACCESSORY BREAKS, USE CAUTION WHEN PICKING IT UP AND DO NOT CONTINUE TO USE IT. CAUTION Using accessories which are not GE approved might affect dose and image quality. WARNING ACCESSORIES LIKE ARM BOARDS AND CATHETER BAG HOLDERS ARE NOT SECURED TO GANTRY AND MAY INTERFERE WITH GANTRY IF NOT POSITIONED PROPERLY.
  • Page 94: Systems With Metal-Free Cradles And Accessories

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 17.3 Table Tray Safety Care should be taken in the total weight of objects that are placed on the tray. WARNING OBJECTS THAT MAY BE SUSCEPTIBLE TO TIPPING SHOULD BE STRAPPED DOWN WITH THE VELCRO™ STRAP PROVIDED.
  • Page 95: Maintenance And Cleaning

    18 Maintenance and Cleaning • To guarantee safe, reliable equipment performance, the site must be prepared according to GE Healthcare requirements, as specified in the Pre-Installation Manual. • There are no user serviceable parts in this system. The product should be installed, maintained, and serviced by qualified service personnel according to procedures laid down in the product service manuals.
  • Page 96: Hazardous Substances

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 19 Hazardous Substances The X-ray Tube Assembly contains potentially dangerous materials but does not present any danger as long as it is neither opened nor disassembled. WARNING DO NOT DISCARD THE X-RAY TUBE ASSEMBLY AMONG INDUSTRIAL WASTE OR DOMESTIC GARBAGE.
  • Page 97: System Performance

    Upon system startup, when an unrecognized X-ray tube is detected, the system displays the following notification to the operator: Attention An unrecognized X- Ray tube has been installed on the system. - GE cannot assure that system performance will conform to specifications. Advisory messages will be posted to the operator about an unrecognized tube during tube warm-up, during Fast Calibration, and in the dose report.
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  • Page 99: Chapter 4 Read Me First

    It is important for you to read and understand the content in this manual before attempting to use the system. This user manual is originally written in English, and is applicable to Revolution CT 1.0 software, version 14MW14.X. 1.3 Prerequisite skills The operator profile may be limited to registered CT technologists certified by national registries, state licenses, or organizational certification;...
  • Page 100: Scan Monitor

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 2 Scan Monitor The scan monitor is used to prescribe and acquire scan data. It is divided into the following areas: Illustration 1: Scan Monitor Number Description Scan Control area Patient Schedule drawer...
  • Page 101: Patient Schedule

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 2: New Patient window Number Description Patient Information area Protocol Selection area 2.2 Patient Schedule Patient Schedule drawer. Click to open the Illustration 3: Patient Scheduler drawer - Open Chapter 4 Read Me First...
  • Page 102: Scan Setup

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 4: Patient Schedule drawer - Closed Illustration 5: Patient Schedule window 2.3 Scan Setup Scan Setup window displays. When an exam is in process, the It is divided into the following areas:...
  • Page 103 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 6: Scan Setup window Number Description Tabs area. Displays the patient session. State area. Indicates the scanning state of the system. • Scanning • Done Scanning Patient Position area. • Shows the patient position and orientation that the patient should be positioned for on the table.
  • Page 104 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Number Description Quick Settings area. Contains other functional tools related to the scan type selected. Auto View viewport. Displays scouts and non-clinical QC images. [Show Localizer] viewport for graphic scan prescription. Navigation viewport.
  • Page 105 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 10: Scan Progress window Number Description Scan Timeline ECG Trace Scan group parameters Real-Time Information Illustration 11: Scan Timeline Chapter 4 Read Me First...
  • Page 106 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Number Description Prep delay Exposure time of group Inter-group delay Total Scan Time of group; calculated by Prep delay + Exposure time of all groups + Group delay Illustration 12: Real-Time Information...
  • Page 107 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 14: Done Scanning window (PPS disabled) Illustration 15: Reports window Chapter 4 Read Me First...
  • Page 108: Image Monitor

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 3 Image Monitor The image monitor is used to reconstruct and post-process scan data. It is divided into the following areas: Illustration 16: Image Monitor Number Description Icons and System Status area...
  • Page 109 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 17: Icons and System Status area Number Icon Description Mode menu with the following selections: Mode Icon Opens the • Protocol Management ○ Protocol Management ○ Auto Gating Configuration ○ Auto Voice Management •...
  • Page 110: Reconstruction And Image Processing Area

    NOTE: GE recommends that you remove images when the image space falls below 1,000 images. This ensures enough disk space for acquiring and reconstruct‐ ing images. Do not remove images while scanning, restoring, or receiving im‐...
  • Page 111 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 18: Reconstruction and Image Processing area Illustration 19: Reconstruction and Image Processing window Number Description Task List Add Recon Add Reformat Study-based transfer options Image Tools Command Line Task Status Image display assignment indicator...
  • Page 112: Image Viewports

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 3.3 Image Viewports Image Viewports can be found on both the scan monitor and image monitor. The four viewports on the image monitor are used for image processing. Illustration 20: Image Viewports...
  • Page 113: File Manager

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 Number Description Hover over bar Frequently used tools Next / Prior series controls Maximize image icon Series binding icon Image scroll bar 3.4 File Manager File Manager browser. Select exam/series/images from the patient list...
  • Page 114 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 24: File Manager Number Description Controls area Exam list Series list Image display / Image list Illustration 25: File Manager Image Navigation 3 Image Monitor...
  • Page 115 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Number Description Image list icon Maximize image icon Chapter 4 Read Me First...
  • Page 116: User Interface Conventions

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 4 User Interface Conventions 4.1 Select items from a list Single item Click the item. Click a start point in the list, press <Shift>, click an end point in the list, and all items between start Multiple contiguous items and end are selected.
  • Page 117: Pop-Up Windows

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 White Background Settings updated by the system are outlined in blue. Blue Outline White Background Indicates settings copied from the primary recon. Green Outline Indicates a Severe Alert. Click on the icon in the Status area for the system message.
  • Page 118 Revolution CT User Manual Direction 5480385-1EN, Revision 1 Illustration 27: Mouse Buttons Table 4: Mouse Actions Number Mouse Action Description Left-click Click the left mouse button. Right-click Click the right mouse button. Scroll Wheel Turn the scroll wheel. Click and drag Click and hold the left mouse button while moving the mouse.
  • Page 119: System Troubleshooting Tips

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 5 System Troubleshooting Tips • Complete all portions of Fast Cal. This assures that the air calibration and generator calibrations are up to date on the system. • Scan aborts may occur during scanning. Always be aware of the scan progress during an exam and click [Resume] as soon as it is posted to continue.
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  • Page 121: Chapter 5 Pediatrics And Small Patients

    Chapter 5 Pediatrics and Small Patients 1 Overview GE Healthcare strongly suggests reducing radiation dose to ALARA (As Low As Reasonably Achievable) in all patients, especially pediatric and small patients, whenever it is determined that a CT scan is necessary. CT is an extremely valuable tool for diagnosing injury and disease, but its use is not without risk.
  • Page 122: Radiation Exposure

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 2 Radiation Exposure 2.1 Radiation exposure sensitivity Radiation exposure is a concern in both adults and children. However, children are more sensitive to radiation than adults and have a longer life expectancy. Radiation risk is higher in young patients, as they have more rapidly dividing cells than adults.
  • Page 123: Minimize Pediatric And Small Patient Doses

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 conditions for scanning. However, it is important to recognize that the dose reported by these indices is inversely proportional to phantom size (see the above chart). This means that for the same scan technique, smaller phantoms (patients) will produce a higher absorbed dose than larger phantom (patients).
  • Page 124: Minimize Multi-Phase Contrast Ct Examinations

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 2.3.3 Minimize multi-phase contrast CT examinations Scan only one series if possible. • CT studies with and without contrast material are not always needed. • Multiphase imaging may double or triple the dose and may not add diagnostic information to the study.
  • Page 125 Revolution CT User Manual Direction 5480385-1EN, Revision 1 • Use stuffed animals. • Play games. • Depending on the patient age, explain the procedure so they know what to expect when they enter the scan room. This will aid in patient cooperation and potentially less repeat studies and dose due to patient motion.
  • Page 126: Pediatric And Small Patient Scans

    Revolution CT User Manual Direction 5480385-1EN, Revision 1 3 Pediatric and small patient scans 3.1 Optimize pediatric protocols for your facility Work with your team of radiologists, medical physicists, and CT technologists to evaluate techniques that may reduce radiation dose and still provide adequate diagnostic information. In...