Specific Anatomic Region Aorta (thoracic)
Application Trauma
Author Elliot K. Fishman, MD
Reference Source JHU Protocol
Scanner Used 64 Slice
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 100-120 cc of Omnipaque-350
Injection Rate 3-4 cc/sec
Scan delay (sec) 20-25 sec
3D technique used VRT
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.