1033Left Ventricular Myocardial Strain at Cardiac MRI using Velocity Vector Imaging: A feasibility study
نویسندگان
چکیده
منابع مشابه
Myocardial Strain Imaging with Tagged MRI
A 4-D B-spline model has been created to accurately capture the dynamic motion of the heart from tagged magnetic resonance imaging (MRI) enabling displacement field reconstruction of myocardial deformation. The 4-D model is allowed to deform based on the location of the tag lines for all frames within the constraints of the model’s spatiotemporal internal energy. From a displacement field, the ...
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Clinical assessment of myocardial ischemia based on visually-assessed wall motion scoring from echocardiography is semiquantitative, operator dependent, and heavily weighted by operator experience and expertise. Cardiac motion estimation methods such as tissue Doppler imaging, used to assess myocardial muscle velocity, provides quantitative parameters such as the strain-rate and strain derived ...
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In this paper, we present a new approach for velocity vector imaging and time-resolved measurements of strain rates in the wall of human arteries using MRI and we prove its feasibility on two examples: in vitro on a phantom and in vivo on the carotid artery of a human subject. Results point out the promising potential of this approach for investigating the mechanics of arterial tissues in vivo.
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ژورنال
عنوان ژورنال: European Heart Journal - Cardiovascular Imaging
سال: 2013
ISSN: 2047-2412,2047-2404
DOI: 10.1093/ehjci/jet070bc