Ask the Fish

Ask the Fish Forum => CT Scan Protocols => Topic started by: 1RadMom on May 24, 2019, 02:15:37 pm

Title: CTPA in Abnormal Lung
Post by: 1RadMom on May 24, 2019, 02:15:37 pm
It seems that, possibly due to increased interstitial pressure, there is often abnormal/slower perfusion of consolidated lung.  This is creating suboptimal contrast opacification of the segmental artery to the affected lung.  If one is asked to rule out PE where there is known to be pneumonia (I know, who needs 2 diagnoses?) does anyone add a few seconds before starting to scan?
Title: Re: CTPA in Abnormal Lung
Post by: Elliot K. Fishman, MD on June 06, 2019, 11:51:40 am
we do not and have not found this to be an issue. triggering off the main PA works fine