System Operational Modes; Overview; Scout; Axial - GE Revolution CT User Manual

5 System Operational Modes

5.1 Overview

The system provides powerful data collection capability with following scan modes:
•

Scout

•

Axial

•

Cine

•
Helical
•
Cardiac Axial
5.2 Scout
Scout imaging is used for anatomical location in conjunction with scan and recon prescription, to
provide an anatomical cross-reference for axial images, and to provide quick feedback to the
user as to the anatomy scanned. Scout supports the following features:
•
Selectable kV (70, 80, 100, 120, 140 kV)
•
Tube current limited to 250 mA with large focal spot
•
Approximately 100 mm/sec table speed
•
Detector coverage: 5 mm
•
Scout orientation: 0, 90, 180, 270 degrees
5.3 Axial
Axial imaging features include:
•
All kV and mA stations available, dependent on generator and tube limitations.
•
Rotation speeds: 0.28, 0.35, 0.5, 1.0 second
•
Detector coverage: 5, 40, 80, 120, 140, 160 mm
• Variable image thickness selections: 0.625, 0.625z overlapped, 1.25, 2.5, and 5.0 mm
•
Sample rates: 984 Hz-8571Hz
• Revolution CT can acquire up to 512 axial slices per rotation
5.4 Cine
Cine imaging features include:
•
All kV and mA stations available, dependent on generator and tube limitations
•
Maximum scan time: 60 seconds
• Rotation speeds: 0.28, 0.35, 0.5, 1.0 second
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Revolution CT User Manual
Direction 5480385-1EN, Revision 1
5 System Operational Modes