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Abstract #1489

Characristics of left ventricular T1 mapping and left atrial strain for distinguishing myocardial amyloidosis and hypertrophic cardiomyopathy

Honghu Shen1, Jianxiu Lian2, Xinyu Zhu1, Lin Wang1, and Pengfei Liu1
1The First Affiliated Hospital of Harbin Medical University, Harbin, China, 2Philips Healthcare, Beijing, China

Synopsis

Keywords: Myocardium, Cardiomyopathy, T1mapping;feature tracking;strain

Motivation: Left ventricular hypertrophy(LVH)is a common manifestation of many cardiac diseases, including myocardial amyloidosis (CA), hypertrophic cardiomyopathy (HCM), among others. Clinical diagnosis of the etiology of LVH has some difficulties

Goal(s): Differences in myocardial T1 values and left atrial strain between CA and HCM patients remain unclear

Approach: In this study, T1mapping and feature tracking based on left atrial were applied to identify CA and HCM

Results: Results illustrated that T1 values and left atrial strain were significantly different between CA and HCM. T1 mapping combined with left atrial reservoir function (Εs) could effectively distinguish CA from HCM.

Impact: T1mapping and feature tracking techniques, as emerging imaging techniques in cardiac magnetic resonance(CMR) in recent years, have been widely used in the study of various myocardial diseases because they do not require the injection of contrast agents.

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Keywords