Technical Aspects of Cardiac CT - ImPACT CT Scanner Evaluation ...
Technical Aspects of Cardiac CT - ImPACT CT Scanner Evaluation ...
Technical Aspects of Cardiac CT - ImPACT CT Scanner Evaluation ...
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Helical cardiac <strong>CT</strong> - pitch<br />
• Gantry rotates faster than heart rate. Eg. :<br />
– 0.3 sec scan = 3 rotations / second<br />
– Heart rate: @ 60 bpm = 1 beat per second<br />
• If Pitch =1, gaps in cardiac anatomy<br />
3 rotations<br />
per heart beat<br />
~300ms<br />
<strong>Scanner</strong> rotations<br />
Harefield <strong>Cardiac</strong> Course
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