Friday, January 22, 2010

Variation in interpretation of CT scans to evaluate for PE

From the American Journal of Emergency Medicine:

We found a very good interobserver agreement in MDCT evaluation for the diagnosis of massive PE, whereas we observed a lower concordance in regard to segmentarian and subsegmentarian PE. In the case of negative or nonmassive PE diagnosis, a second evaluation of the CT performed by an expert CT radiologist would probably be effective to decrease the CT evaluation error.

The present degree of confidence in CT angiography over ventilation perfusion lung scanning for the diagnosis of PE is unwarranted.

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