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. 2015 Nov 13;15(2):193–202. doi: 10.2463/mrms.mp.2015-0038

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© 2015 Japanese Society for Magnetic Resonance in Medicine

This is an open-access article. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/

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Fig. 2. — Representative streamline analysis (a), WSS map (b), time course changes of the WSS values of the main pulmonary arterial wall and hemodynamic values (c) acquired in a 77-year-old male with non-PAH. Systolic streamlines of the pulmonary artery (a) show laminar, but no vortex flow. WSS in the time-averaged WSS-contour image of the pulmonary artery (b) is about 3 N/m² or more. Spatially-averaged temporal WSS change in the pulmonary artery (c) show its peak at 166 ms from R wave (systole). Patients’ data with non-PAH demonstrates a high value of BNP and normal PAP. The error bars represent the SD. AT, acceleration time; BNP, brain natriuretic peptide; PAH, pulmonary arterial hypertension; PAP, pulmonary arterial pressure; PV, peak velocity; RHC, right heart catheterization; s/d/m, systole/diastole/mean; sPAP, systolic pulmonary arterial pressure; UCG, ultrasound cardiography; WSS, wall shear stress.