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
Comment: Uses 2 sec cycle time. Test bolus used to determine patient specific delay time for CTA. Delay time + 6 sec is ideal.