Noninvasive measurement of transmural gradients in myocardial strain with MR imaging.
basic_science · Level V
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- Record sourced from PubMed, PMID 1871278.
- Also identified by PMC identifier 2475677.
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Abstract
A method is presented for performing high-resolution strain measurements by using magnetic resonance (MR) tagging. Multispectral radiofrequency pulses are used to produce tagging grids from which strain estimates are obtained with a resolution of 2 mm. A tag detection algorithm is presented that measures the center of a tag line with a precision that ranges from 0.1 to 0.2 mm over the systolic interval. With this method, a transmural gradient in the strain of a normal dog heart was detected.
Medical subject headings
- Heart
- Magnetic Resonance Imaging