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  1. IEEE Signal Processing Magazine
  2. Year : 2001 Volume : 18
  3. Issue 6
  4. Imaging myocardial strain
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Year : 2016 Volume : 33
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Year : 2001 Volume : 18
Issue 6
A proposal to minimize the NAAPIPT based on /spl mu/HRR
Emerging medical imaging modalities
Electromagnetic brain mapping
Electrical impedance tomography
Imaging myocardial strain
Imaging the body with diffuse optical tomography
Issue 5
Issue 4
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Imaging myocardial strain

Content Provider IEEE Xplore Digital Library
Author McVeigh, E. Ozturk, C.
Copyright Year 1991
Description Measuring the local mechanical activity of the heart has lagged behind the measurement of electrical activity due to a lack of measurement tools. Myocardial wall motion abnormalities have been studied for years in the context of regional ischemia. Implanted beads and screws have been used to measure the mechanical activity of the heart in a few isolated regions. Over the past decade, precise and accurate methods for measuring local three-dimensional (3-D) myocardial motion with magnetic resonance imaging (MRI) have been developed using presaturation tagging patterns, velocity encoded phase maps, and displacement encoded phase maps. Concurrently, the quality of cardiac MRI images improved greatly with the use of customized receiver coils and the speed of acquisition has increased dramatically with the advent of undersampling techniques and new generations of MR machines with faster switching gradient coils. The use of these cardiac MRI techniques to produce an image of the local deformation of the heart in the form of a myocardial strain image is described. Using these images, the "mechanical activation" of the heart are defined, that is, the time of onset of contraction. A map of the mechanical activation over the heart is a direct analogy to an electrical activation map of the heart.
Starting Page 44
Ending Page 56
Page Count 13
File Size 8459735
File Format PDF
ISSN 10535888
Volume Number 18
Issue Number 6
Language English
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date 2001-11-01
Publisher Place U.S.A.
Access Restriction One Nation One Subscription (ONOS)
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword Myocardium Capacitive sensors Heart Mechanical variables measurement Magnetic resonance imaging Electric variables measurement Coils Ischemic pain Fasteners Displacement measurement
Content Type Text
Resource Type Article
Subject Applied Mathematics Signal Processing Electrical and Electronic Engineering
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