Related Manuals for Cirs Brachytherapy QA Phantom
Summary of Contents for Cirs Brachytherapy QA Phantom
- Page 1 Brachytherapy QA Phantom Brachytherapy QA Phantom Model 045B ZERDINE Inside ® A registered trademark of CIRS USER GUIDE 900 Asbury Ave • Norfolk, Virginia 23513 • USA • Tel: 757-855-2765 • WWW.CIRSINC.COM...
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Page 2: Table Of Contents
TABLE OF CONTENTS 1 OVERVIEW 2 INSTRUCTIONS FOR USE HANDLING AND CARE � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 4 GENERAL GUIDELINES FOR PERFORMING MEASUREMENTS �... - Page 3 These targets are made from Zerdine that has a differ- ent contrast relative to the background material. CIRS is certified to ISO 13485:2016 standards. We have an in-house test facility to measure acoustic properties of speed, attenuation and relative contrast. In addition, two ultrasound systems are used to visually inspect each phantom.
- Page 4 Phantom is placed vertically in water tank for testing. Tank needs to be filled with water prior to use.
- Page 5 Phantom can be positioned at 30-degrees for compatibility with floor mounted brachytherapy systems.
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Page 6: Instructions For Use
If the scanning surface becomes damaged, seal the phantom in an airtight container and IMMEDIATELY contact CIRS for return authorization. Call 800-617-1177, email at rma@cirsinc.com or fax RMA Request form to 757-857-0523. -
Page 7: General Guidelines For Performing Measurements
If assistance is desired in the proper disposal of this product, including accessories and components, after its useful life, please return to CIRS. GENERAL GUIDELINES FOR PERFORMING MEASUREMENTS It is recommended that all measurements be performed at the most frequently used imaging arrangements. -
Page 8: Establishing A Baseline
If not, then the conclusions drawn may not be valid. CIRS recommends that you use the most commonly used settings for the type of probe tested- i.e. the brachytherapy preset values which are called a "normal"... -
Page 9: Uniformity Testing
Pfeiffer, Douglas, et al., AAPM Task Group 128: Quality assurance tests for prostate brachytherapy ultrasound systems. Med. Phys., vol. 35 (12), pgs. 5471-5489, December 2008. Goldstein, A., Yudelev, M., Sharma, R.K. and Arterbery, E. (2002), Design of Quality Assurance for Sonographic Prostate Brachytherapy Needle Guides. -
Page 10: Vertical And Horizontal Distance Measurement
7. Record this distance on a record sheet and compare with baseline depth. VERTICAL AND HORIZONTAL DISTANCE ACCURACY- USING ELECTRONIC CALIPERS If the displayed grid does not line up with the N-shaped target group or you want a more precise measure of distance accuracy, electronic calipers may be used. Vertical distance is defined as the distance along the axis of the beam. -
Page 11: Electronic Grid Accuracy
VERTICAL AND HORIZONTAL DISTANCE ACCURACY (CONTINUED) 4. Using electronic calipers, measure the distances between two wires at various depths or align the echoes to the ultrasound system display markers for com- parison. 5. Record measurements. 6. Compare measured values with baseline distances. 7. -
Page 12: Volume Measurement Accuracy
STEPPING MECHANISM ACCURACY (CONTINUED) 1. Adjust the instrument setting (gain, TGC, output, etc.) as for a “normal” tech- nique. Record these settings for use on subsequent testing. 2. Align the probe so targets are maximized. 3. Insert the transducer towards the back of the scanning cavity and align the beam with the crossing wire number 6 as indicated on the side of the phantom. - Page 13 VOLUME MEASUREMENT ACCURACY (CONTINUED) LARGE EGG LAYOUT ���� = �������� �������� ≈ 3.6 �������� �������� = 2.542��( 2�� a=14.7mm ���� = �������� ≈ 8.6 �������� c=14.7mm b=29.5mm 2 ���� ���� = ���� ���� + ���� ≈ 20 �������� Figure 2 Egg volume and perimeter (see certification sheet for measured values in your phantom) Volume measurements are performed as follows: 1.
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Page 14: Needle Alignment Testing
NEEDLE ALIGNMENT TEST Needle alignment testing of the brachytherapy system is important to ensure potential accuracy in guiding radioactive seeds respective of the overlay grid on the sonographic image. Fill the water tank with water. Remove the phantom from the water tank or position the transrectal probe into an area that only images the water bath. -
Page 15: Specifications
SPECIFICATIONS TARGET LAYOUT FRONT FRONT LEFT LEFT Brachytherapy Brachytherapy QA Phantom QA Phantom 9 cc 9 cc 0.5 cm 0.5 cm 0.5 cm 0.5 cm 1 cm 1 cm 20 cc 20 cc 1 cm 1 cm 1 cm 1 cm 4 cc 4 cc 9 cc... - Page 16 ® The Model 045B is constructed from a patented, solid elastic material developed at CIRS called Zerdine. Zerdine, unlike other phantom materials on the market, is not affected by changes in temperature. It can be subjected to boiling or freezing conditions without sustaining significant damage.
- Page 17 CIRS will not be responsible for lost or damaged return shipments. Return freight and insurance is to be pre-paid.
- Page 18 APPENDIX 1: QUALITY ASSURANCE RECORD FOR MODEL 045B MODEL 045B MODEL 045A BRACHYTHERAPY QA PHANTOM BRACHYTHERAPY QA PHANTOM QUALITY ASSURANCE RECORD QUALITY ASSURANCE RECORD Name:_____________________ Date:________________________ Phantom Info: ________________ Baseline System I.D.___________________ ____________________________ Date:______________________ Transducer I.D.________________ ____________________________ System Settings Overall Gain:________________...
- Page 20 COMPUTERIZED IMAGING REFERENCE SYSTEMS, INC. 900 Asbury Ave Norfolk, Virginia 23513 USA Toll Free: 800.617.1177 Tel: 757.855.2765 Fax: 757.857.0523 Email admin@cirsinc.com www.cirsinc.com Technical Assistance 1.800.617.1177 © 2020 Computerized Imaging Reference Systems, Inc. All rights Computerized Imaging Reference Systems, Inc. has reserved.
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