Pulmonary hypertension due to left heart disease: diagnostic value of pulmonary artery distensibility

ConclusionPA distensibility on an ECG-gated CT can detect PH-LHD better than the parameters reflecting PA dilatation in ungated CT or TR gradient in the echocardiography of patients with severe HFrEF, aortic stenosis, or mitral regurgitation.Key Points• In left heart disease, pulmonary artery distensibility is lower in patients with PH than in those without pulmonary hypertension (11.4 vs.21.2%, p  <  0.001).• In left heart disease, pulmonary artery distensibility detects pulmonary hypertension with an area under the receiver operating curve of 0.92.• In left heart disease, the area under the receiver operating curve of pulmonary artery distensibility for detecting pulmonary hypertension is larger than that of all other signs at ungated CT (p from 0.019 to<  0.001) and tricuspid regurgitation gradient at echocardiography (p = 0.020).
Source: European Radiology - Category: Radiology Source Type: research