64 Slice MDCT Protocols: Chest

Specific Anatomic Region

Chest

Application

? SVC occlusion

Author

Elliot K. Fishman, MD

Reference Source

JHU Protocol

Scanner Used

Siemens Sensation 64

KV/Effective mAs/Rotation time (sec)

120/200/0.33

Detector Collimation (mm)

0.6

Slice Thickness (mm)

3 or .75

Pitch

0.75

Kernel

30

Reconstruction Interval

3 or .5

Image Order (acquisition)

Cr-ca or Ca-cr

Oral Contrast

N/A

IV contrast volume and type

100 cc of Omnipaque-350

Injection Rate

3 cc/sec

Scan delay (sec)

35-40 sec

3D technique used

VRT

Comment: The key is to avoid artifact off SVC as well as flow related changes which cause "pseudothrombosis". When in doubt, wait a bit longer. Scanning from base of heart through neck (caudal-cranial) may be helpful.