Figure - PMC

Skip to main content

View full-text article in PMC

. Author manuscript; available in PMC: 2014 May 1.

Published in final edited form as: J Thorac Imaging. 2013 May;28(3):178–193. doi: 10.1097/RTI.0b013e31828d5c48

(a) Chronic thromboembolic pulmonary hypertension (CTEPH) four-chamber SSFP showing a jet of tricuspid regurgitation (TR) parallel to the anterior leaflet of the tricuspid valve (arrow). The jet velocity and total flow of TR can be quantified with phase contrast MR methodology using an offline workstation. The TR jet velocity is proportional to the mean pulmonary artery pressure. The short axis of the right ventricle is increased in size (line), (b) Chronic thromboembolic pulmonary hypertension (CTEPH) short-axis SSFP showing right ventricular hypertrophy (fat arrow) and bowing of the interventricular septum (small arrow). This bowing indicates that the pressure in the right ventricle exceeds the pressure in the left ventricle at that specific time point in the cardiac cycle., (c) Dextro phase MRA showing reflux into the inferior vena cava (arrow), enlarged pulmonary trunk (PT), occlusion of left lower lobe pulmonary artery with a total lack of perfusion to the left lower lobe (bracket), and pruning of the right lung peripheral pulmonary arterial vasculature (dashed arrows).

(a) Chronic thromboembolic pulmonary hypertension (CTEPH) four-chamber SSFP showing a jet of tricuspid regurgitation (TR) parallel to the anterior leaflet of the tricuspid valve (arrow). The jet velocity and total flow of TR can be quantified with phase contrast MR methodology using an offline workstation. The TR jet velocity is proportional to the mean pulmonary artery pressure. The short axis of the right ventricle is increased in size (line), (b) Chronic thromboembolic pulmonary hypertension (CTEPH) short-axis SSFP showing right ventricular hypertrophy (fat arrow) and bowing of the interventricular septum (small arrow). This bowing indicates that the pressure in the right ventricle exceeds the pressure in the left ventricle at that specific time point in the cardiac cycle., (c) Dextro phase MRA showing reflux into the inferior vena cava (arrow), enlarged pulmonary trunk (PT), occlusion of left lower lobe pulmonary artery with a total lack of perfusion to the left lower lobe (bracket), and pruning of the right lung peripheral pulmonary arterial vasculature (dashed arrows).