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Updated: May 30, 2025

Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet
Published on: November 4, 2015
Imaging of Chronic Thromboembolic Pulmonary Hypertension
Lewis D Hahn1, Jonathan H Chung1
1Department of Radiology, University of California San Diego, La Jolla, CA, USA.
Abstract:
Chronic thromboembolic pulmonary hypertension (CTEPH) is pulmonary hypertension secondary to chronic obstruction of pulmonary arteries by organized thromboemboli. Echocardiography and Echocardiography and ventilation/perfusion (V/Q) scan are the initial screening examinations for CTEPH; the diagnosis is often missed on computed tomography (CT). Imaging findings of chronic thromboembolic pulmonary disease overlap with those of acute pulmonary embolism, and radiologists should evaluate for the presence of concurrent chronic disease in all cases of acute pulmonary embolism detected on CT pulmonary angiography. Conditions that can mimic CTEPH include in situ thrombus, vasculitis, pulmonary artery sarcoma, and fibrosing mediastinitis.
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