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. 2014 Dec;11(10):1623–1632. doi: 10.1513/AnnalsATS.201406-253PP

Figure 1.

Figure 1.

Dilated pulmonary artery (PA, indicated by the asterisk in each panel) on contrast-enhanced computed tomography (CT) of the chest. (A) A 22-year-old man with idiopathic pulmonary arterial hypertension (PAH). Mean PA pressure 83 mm Hg and pulmonary vascular resistance (PVR) 18.3 Wood units. Aorta and PA measure 21.8 and 39.5 mm, respectively. (B) A 46-year-old woman with PAH due to congenital heart disease had a ventricular septal defect corrected at the age of 5 years. Right heart catheterization at the time of CT scan showed mean PA pressure of 55 mm Hg with a PVR of 12 Wood units. Aorta and PA measure 29.3 and 44.9 mm, respectively. (C) A 64-year-old woman with chronic thromboembolic portopulmonary hypertension after pulmonary thromboendarterectomy. Due to severe (80%) extrinsic compression of the left main coronary trunk she required percutaneous coronary intervention with stent placement. Mean PA pressure 55 mm Hg and PVR 7.5 Wood units. Aorta and PA measure 31.5 and 80.0 mm, respectively.