Discordance between Imaging Modalities in the Evaluation of Chronic Thromboembolic Pulmonary Hypertension: A Combined Experience from Two Academic Medical Centers

What is it about?

Ventilation-perfusion scanning is considered more sensitive for the detection of chronic thromboembolic pulmonary hypertension than computed tomography pulmonary angiography; however the former is often not performed in clinical practice. We performed a retrospective review to compare the sensitivities of these two scans for detecting thromboembolic disease. We found that ventilation perfusions scanning is more sensitive and that in 1/3 of cases computed tomography pulmonary angiography was falsely negative while the ventilation-perfusion scan was accurately positive.

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