Specific anatomic region Aorta
Application Aorta- R/O aneurysm, evaluate extent of aorta, R/O dissection, define extent of aneurysm/disease, F/U aneurysm (change of size)
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) 0.75 mm (thin)
5.0mm (thick)
Pitch 0.7
Kernel B20f smooth (thin)
B30f medium smooth (thick)
Reconstruction interval 0.5mm (thin)
5.0mm (thick)
Image order (acquisition) Cr-ca
Oral contrast water
IV contrast volume and type 120 cc Omnipaque 350
Injection rate 3-3.5cc/sec
Scan delay (sec) 30 sec or bolus tracking
3D technique used VRT of MIP
Also have a protocol using 0.37sec rotation time. mAs increased to 300.