64 Slice MDCT Protocols: Abdomen

Specific anatomic region

Abdomen CTA - mesentery

Application

Ischemic bowel

Author

Elliot K Fishman, MD

Reference Source

JHU Protocol

Scanner Used

Siemens Sensation 64

KV/Effective mAs/ Rotation time (sec)

Arterial
120/ 250 / 0.33
Venous
120/ 250 / 0.5

Detector Collimation (mm)

0.6 0.6

Slice thickness (mm)

0.75 0.75

Pitch

0.75 0.75

Kernel

B20 B20

Reconstruction interval

0.5 0.5

Image order (acquisition)

Cr-ca

Oral contrast

Water (1000 cc)

IV contrast volume and type

Omnipaque 350 / 120ml

Injection rate

4.0cc/ sec

Scan delay (sec)

25 sec for arterial, 50 sec for venous

3D technique used

VRT / MIP

Comment: Increase rotation time to utilize higher mAs values if needed for larger patients.