64 Slice MDCT Protocols: Coronary Arteries

Specific anatomic region

Coronary arteries

Application

Bypass graft patency

Author

Elliot K Fishman, MD

Reference Source

JHU Protocol

Scanner Used

Siemens Sensation 64

KV/Effective mAs/ Rotation time (sec)

120/ 800 / .33

Detector Collimation (mm)

.6 mm

Slice thickness (mm)

.75 mm

Pitch

.2

Kernel

B20

Reconstruction interval

.4 mm

Image order (acquisition)

cr-ca

Oral contrast

N/A

IV contrast volume and type

80-100 cc Visipaque / 40cc saline

Injection rate

4cc/sec

Scan delay (sec)

test bolus

3D technique used

VRT/MIP/MPR

Comment: When scanning grafts like LIMA grafts you must scan from the lung apex downward to get origin of the graft in most cases.