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
Comment: Also have a protocol using 0.37sec rotation time. mAs increased to 300.