Abstract #2267

Biventricular flow components assessed with 4-dimensional flow cardiac magnetic resonance in patients with pulmonary hypertension

Min Liu¹, Xincao Tao², Jing An³, Ning Jin⁴, and Fan Lin⁵

¹Radiology, China-Japan Friendship Hospital, Beijing, China, ²Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China, ³Siemens Shenzhen Magnetic Resonance Ltd, Siemens Shenzhen Magnetic Resonance Ltd, Shen Zhen, China, ⁴Siemens Medical Solution, Siemens Medical Solution, Chicago, IL, United States, ⁵Department of Cardiovascular surgery, China-Japan Friendship Hospital, Beijing, China

Using 4D FLOW CMR, flow components including percent of direct flow (PDF), retained inflow (PRI), delayed ejection flow (PDE) and residual volume (PRV) of bi-ventricles in patients with PH were quantified. Compared with non-PH patients, flow components had significantly alterations. RV PDF and PRV significantly correlated with RVEDV, RSV, RVEF and RV mass as well as NT-proBNP. Moreover, RV PDF and PVR correlated with pulmonary artery pressure and PVR. We think that 4D flow CMR may become a powerful surrogate for the future PH studies

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