منابع مشابه
Myocardial tissue tagging with cardiovascular magnetic resonance
Cardiovascular magnetic resonance (CMR) is currently the gold standard for assessing both global and regional myocardial function. New tools for quantifying regional function have been recently developed to characterize early myocardial dysfunction in order to improve the identification and management of individuals at risk for heart failure. Of particular interest is CMR myocardial tagging, a ...
متن کاملImaging Myocardial Tagging
It has been postulated that rotation of the left ventricular apex with respect to the base is a component of normal systolic function in humans, but it has been difficult to measure it noninvasively. Tagging is a new magnetic resonance imaging technique that labels specific areas of myocardium by selective radio-frequency excitation of narrow planes orthogonal to the imaging plane before acquir...
متن کاملHigh Spatial and Temporal Resolution Myocardial Tagging in a free- breathing exam using multi-echo SSFP and PAGE
INTRODUCTION: Magnetization tagging [1, 2] has been used to study regional myocardial motion. The development of high temporal and spatial resolution tagging imaging methods may permit the evaluation of regional activation and relaxation patterns in early systolic and diastolic phases. In this abstract, we present an approach to obtain high temporal and spatial resolution myocardial tagging dat...
متن کاملMyocardial diffusion tensor imaging using diffusion-prepared SSFP
Background Diffusion tensor imaging of the myocardium is challenging due to the large bulk motion of the heart relative to the distance water diffuses. One solution is to use diffusion gradients on two consecutive heartbeats, with EPI to readout the stimulated echo [1]. The technique has not been widely adopted, primarily due to the long imaging times required to overcome the low SNR of the tec...
متن کاملQuantification of transmural differences in myocardial function with MRI tagging.
Many cardiac diseases cause transmural differences in myofiber function. With the Magnetic Resonance Imaging Tagging technique a grid of magnetic tags was attached to the heart. Using a model of cardiac mechanics the motion of these tags was analyzed to deduct the transmural gradient of myofiber shortening. In normal, young healthy subjects (n=9), the transmural difference in myofiber shortenin...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2003
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.10361