64 Slice MDCT Protocols: Cardiac CTA

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.