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Abstract #1672

Biventricular intraventricular mechanical dyssynchrony and electronical dyssynchrony in pulmonary arterial hypertension

Wen Li1, Xian-chang Zhang2, Yu-ling Qian1, Qing Gu1, Jens Wetzl3, Jing An4, and Jian-guo He1
1Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing, China, 2MR Research Collaboration, Siemens Healthineers Ltd., Beijing, China, 3MR Application Predevelopment, Siemens Healthcare GmbH, Erlangen, Germany, 4Siemens Shenzhen Magnetic Resonance Ltd., Shenzhen, China

Synopsis

Keywords: Myocardium, Myocardium, pulmonary hypertension; mechanical dyssynchrony;

Motivation: The ability of layer-specific intraventricular mechanical dyssynchrony (M-dys) to predict prognosis in pulmonary arterial hypertension (PAH) has not been investigated.

Goal(s): To illustrate the existence and prognostic values of layer-specific intraventricular M-dys and its associations with electronical dyssynchrony in PAH.

Approach: The biventricular volumetric and layer-specific intraventricular M-dys were analyzed by calculating strain and strain rate based on cine cardiac magnetic resonance images.

Results: The layer-specific intraventricular M-dys had varying impacts on biventricular functions in PAH.

Impact: This study was novel in reporting that the layer-specific intraventricular M-dys had various distribution patterns in both ventricles in patients with PAH.

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Keywords