Obstruction / Occlusion, Contrast agent-intravenous, CT-Angiography, Pulmonary vessels
A. Demchenkova, T. N. Veselova, T. Martynyuk, N. Danilov, S. K. Ternovoy, I. E. Chazova, N. Serova; Moscow/RU
Pulmonary hypertension (PH) is characterized by increasing of pulmonary vascular resistance and pulmonary arterial pressure,
which leads to right ventricular failure .
The most common form of PH is a chronic thromboembolic pulmonary hypertension (CTEPH).
It is the only potentially curable form of PH,
which is characterized by chronic obstruction of the pulmonary artery branches after a single or repeated thromboembolism.
Severe obstruction or complete occlusion of the pulmonary arteries contributes to the formation of typical perfusion defects,
finding of which is a crucial part of the diagnosis of CTEPH.
computed tomography (CT) is the most promising non-invasive method for the detection of lung perfusion defects in conjunction with the evaluation of the pulmonary arteries in patients with CTEPH.
The aim of this work was to develop the lung study protocol in patients with CTEPH and compare perfusion defects score with CT angiographic obstruction score,
mean pulmonary arterial pressure and 6-minute walking distance.