title: Multi-detector CT assessment in pulmonary hypertension: techniques, systematic approach to interpretation and key findings.
abstract: Pulmonary arterial hypertension (PAH) may be suspected based on the clinical history, physical examination and electrocardiogram findings but imaging is usually central to confirming the diagnosis, establishing a cause and guiding therapy. The diagnostic pathway of PAH involves a variety of complimentary investigations of which computed tomography pulmonary angiography (CTPA) has established a central role both in helping identify an underlying cause for PAH and assessing resulting functional compromise. In particular CTPA is considered as the gold standard technique for the diagnosis of thromboembolic disease. This article reviews the CTPA evaluation in PAH, describing CTPA techniques, a systematic approach to interpretation and spectrum of key imaging findings.
authors.affiliation: 1 Department of Radiology, 2 Department of Cardiology, Heart of England NHS Trust, Birmingham, UK.
authors.forename: Gareth
authors.initials: G
authors.lastname: Lewis
authors.affiliation: 1 Department of Radiology, 2 Department of Cardiology, Heart of England NHS Trust, Birmingham, UK.
authors.forename: Edward T D
authors.initials: ET
authors.lastname: Hoey
authors.affiliation: 1 Department of Radiology, 2 Department of Cardiology, Heart of England NHS Trust, Birmingham, UK.
authors.forename: John H
authors.initials: JH
authors.lastname: Reynolds
authors.affiliation: 1 Department of Radiology, 2 Department of Cardiology, Heart of England NHS Trust, Birmingham, UK.
authors.forename: Arul
authors.initials: A
authors.lastname: Ganeshan
authors.affiliation: 1 Department of Radiology, 2 Department of Cardiology, Heart of England NHS Trust, Birmingham, UK.
authors.forename: Jerome
authors.initials: J
authors.lastname: Ment
keywords: Pulmonary arterial hypertension (PAH); computed tomography (CT); echocardiography