Imaging modalities provide incremental diagnostic information for pulmonary hypertension, aiding in early treatment and improved patient outcomes.
This review summarizes the utility, advantages, and shortcomings of various imaging modalities for the diagnosis and etiologic classification of pulmonary hypertension.
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Pulmonary hypertension (PH) is defined as resting mean pulmonary artery pressure ≥25 mmHg measured by right heart catheterization. PH is a progressive, life-threatening disease with a variety of etiologies. Swift and accurate diagnosis of PH and appropriate classification in etiologic group will allow for earlier treatment and improved outcomes. A number of imaging tools are utilized in the evaluation of PH, such as chest X-ray, computed tomography (CT), ventilation/perfusion (V/Q) scan, and cardiac magnetic resonance imaging. Newer imaging tools such as dual-energy CT and single-photon emission computed tomography/computed tomography V/Q scanning have also emerged; however, their place in the diagnostic evaluation of PH remains to be determined. In general, each imaging technique provides incremental information, with varying degrees of sensitivity and specificity, which helps suspect the presence and identify the etiology of PH. The present study aims to provide a comprehensive review of the utility, advantages, and shortcomings of the imaging modalities that may be used to evaluate patients with PH.
Tonelli et al. (Sat,) reported a other. Imaging modalities provide incremental diagnostic information for pulmonary hypertension, aiding in early treatment and improved patient outcomes.