Postcontrast CT in the diagnosis and assessment of response to thrombolysis in massive pulmonary embolism.

We present a case of massive acute pulmonary embolism where contrast enhanced helical CT was compared with standard angiography for diagnosis and for monitoring subsequent response to thrombolytic therapy. There was very close concordance of the findings on these modalities suggesting that contrast enhanced helical CT may be an easy and reliable alternative to standard angiography.