Specific Anatomic Region	Pulmonary Artery
Application	R/O pulmonary embolism
Author	Fishman, E.K.
Reference Source	Personal communication
Scanner Used	Siemens Somatom Plus 4
Injection Rate	3ml/sec
Contrast Volume and Type	120ml of Omnipaque 350
Area Scanned	Level of just above aortic arch through lung bases
Scan Delay	25sec
Length of Spiral (time)	30-35sec
Slice Thickness	3mm
Table Speed/Pitch	5mm/sec
Reconstruction Interval	2mm
3D Technique Used	Volume rendering / MIP/ MPR
Comment: We routinely scan the patient caudal to cranially to optimize the patient's breathhold. A key to detecting a P.E. is careful attention to proper filming technique. If images are too bright you can miss a P.E It is often easier to read these studies on a workstation than on film.