Specific Anatomic Region

Aorta (thoracic)

Application

Author

Elliot K. Fishman, MD

Reference Source

JHU Protocol

Scanner Used

Siemens Sensation 64

KV/Effective mAs/Rotation time (sec)

120/250/0.33

Detector Collimation (mm)

0.6

Slice Thickness (mm)

5 and .75

Pitch

0.7

Kernel

30

Reconstruction Interval

5 and .5

Image Order (acquisition)

Cr-ca

Oral Contrast

N/A

IV contrast volume and type

Injection Rate

3-4 cc/sec

Scan delay (sec)

3D technique used

VRT

Comment:We prefer to gate these studies and use either bolus tracking or a test bolus technique. Gating is ideal for the aortic root. A saline chaser is helpful for the arch to eliminate artifact off the SVC.