Pulmonary artery: R/O pulmonary embolism

Specific Anatomic Region	Pulmonary artery
Application	R/O pulmonary embolism
Author	Fishman EK
Reference Source	Personal Communication
Scanner Used	Siemens Plus4 Volume Zoom
KV / mAs / Time per Rotation (sec)	140 / 100 / .5	OR 140 / 100 / .5
Detector Collimation (mm)	2.5	1
Slice Thickness (mm)	3	1
Data Reconstruction Interval (mm)	2	1
Table Speed (mm per rotation) / Pitch	15 / 6	6 / 6
Oral Contrast	N/A
IV Contrast Volume and Type	100-120 cc of Omnipaque 350
Injection Rate	3 cc / sec
Scan Delay (sec)	20-25 sec
3D Technique Used	MPR or volume rendering (as needed)
Comment: -MPR or volume rendering can be done in select cases to differentiate a node from a vessel.