نتایج جستجو برای: strain rate imaging

تعداد نتایج: 1573666  

2015
Smita Sampath Michael Klimas Dai Feng Richard Baumgartner Elaine Manigbas Ai-Leng Liang Jeffrey L. Evelhoch Chih-Liang Chin Alena Talkachova

Pre-clinical animal models are important to study the fundamental biological and functional mechanisms involved in the longitudinal evolution of heart failure (HF). Particularly, large animal models, like nonhuman primates (NHPs), that possess greater physiological, biochemical, and phylogenetic similarity to humans are gaining interest. To assess the translatability of these models into human ...

Journal: :Journal of the American College of Cardiology 2011
John Gorcsan Hidekazu Tanaka

Echocardiographic strain imaging, also known as deformation imaging, has been developed as a means to objectively quantify regional myocardial function. First introduced as post-processing of tissue Doppler imaging velocity converted to strain and strain rate, strain imaging has more recently also been derived from digital speckle tracking analysis. Strain imaging has been used to gain greater ...

Journal: :JACC. Cardiovascular imaging 2011
Nee Scze Khoo Jeffrey F Smallhorn Sachie Kaneko Kimberly Myers Shelby Kutty Edythe B Tham

OBJECTIVES This study sought to examine the changes in ventricular function of hypoplastic left heart syndrome (HLHS) between the first 2 stages of surgical palliation. BACKGROUND The mortality risk between first and second stages of surgical palliation in HLHS remains high. Right ventricular (RV) dysfunction predicts mortality. Postulated mechanisms include a maladaptive contraction pattern,...

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