Specific anatomic region Cardiac CTA
Application Test bolus
Author Elliot K Fishman, MD
Reference Source JHU Protocol
Scanner Used Siemens Sensation 64
KV/Effective mAs/ Rotation time (sec) 120/ 40 / .5
Detector Collimation (mm) 10 mm
Slice thickness (mm) 10 mm
Pitch N/A - 0 table feed
Kernel B20
Reconstruction interval 10mm
Image order (acquisition) N/A
Oral contrast N/A
IV contrast volume and type Visipaque 320 20cc / 40cc Saline flush
Injection rate 4cc/sec
Scan delay (sec) 10 sec and then every 3 sec (10 scans)
3D technique used N/A
Uses 2 sec cycle time. Test bolus used to determine patient specific delay time for CTA. Delay time + 6 sec is ideal.