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Echocardiographic Strain Analysis for the Early Detection of Myocardial Structural Abnormality and Initiation of Drug Therapy in a Mouse Model of Dilated Cardiomyopathy
Journal article   Peer reviewed

Echocardiographic Strain Analysis for the Early Detection of Myocardial Structural Abnormality and Initiation of Drug Therapy in a Mouse Model of Dilated Cardiomyopathy

Minjuan Zheng, Feng Pan, Ying Liu, Zhenzhou Li, Xiaodong Zhou, Xin Meng, Liwen Liu and Shuping Ge
Ultrasound in medicine & biology, v 43(12), pp 2914-2924
Dec 2017
PMID: 28942269

Abstract

Dilated cardiomyopathy Losartan Speckle tracking imaging Ultrasound biomicroscopy
This study aimed to evaluate the role of echocardiography-based strain analysis in the early diagnosis and guidance for management of dilated cardiomyopathy (DCM). Muscular dystrophy mice (which spontaneously develop DCM) and control (C57 BL/6 J) mice were sequentially evaluated by ultrasound biomicroscopy, conventional left ventricle (LV) measurement, two-dimensional (2-D) strain analysis and myocardial histologic analysis for 12 consecutive months. Significant alternation of LV remodeling and dysfunction could be detected by conventional echocardiography after 9 mo, by strain analysis after 5 mo and by histologic analysis after 4 mo. The global longitudinal systolic peak strain (PK) was the most sensitive strain marker for early detection of myocardial structural abnormality in the subclinical stage. Moreover, losartan administration before the PK decrease was associated with significantly preserved LV function. These results suggest that myocardial strain analysis (particularly longitudinal PK) is sensitive for the early detection of LV dysfunction in mice with dilated cardiomyopathy.

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Acoustics
Radiology, Nuclear Medicine & Medical Imaging
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