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<a href="http://doi.org/10.1002/jum.15006" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/jum.15006</a>
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NEOMED Department
Department of Radiology
Affiliated Hospital
Mercy Health St Elizabeth Boardman Hospital
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Title
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Use of a Real-Time Stress Map for Assessment of Applied Stress for Strain Elastography-Utility in Training and Computation of Strain Ratios.
Publisher
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Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine
Date
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2019
2019-04
Subject
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Training; strain elastography; Strain ratio; strain index
Creator
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Barr Richard G; Nikolov Svetoslav Ivanov
Description
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OBJECTIVES: There is a significant learning curve in strain elastography. Uniform appropriate levels of stress must be applied for accurate elastograms. If the stress is not applied appropriately, inaccurate results will be obtained, particularly when strain ratios are being estimated. This paper describes a new technique which allows the real-time visualization of the applied stress with a color-coded stress map. The potential use of this map is discussed. METHODS: Ten patients (5 breast, 5 thyroid) and phantoms were scanned using the stress map. The stress applied was varied and the resultant change in the strain image evaluated. RESULTS: The stress map was able to document if appropriate stress was applied when performing strain elastography. When inappropriate stress was applied or physiological process effected the strain image the stress map demonstrated the areas of inaccurate measurements in the stress map. CONCLUSIONS: The display of a stress map that depicts the degree and uniformity of applied stress would be helpful both for training of the appropriate technique, for confirming that the elastogram is appropriate for evaluation, and that strain ratio estimates are accurate.
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<a href="http://doi.org/10.1002/jum.15006" target="_blank" rel="noreferrer noopener">10.1002/jum.15006</a>
2019
Barr Richard G
Department of Radiology
Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine
Mercy Health St Elizabeth Boardman Hospital
NEOMED College of Medicine
Nikolov Svetoslav Ivanov
Strain elastography
strain index
Strain ratio
Training