Abstract
A method is presented for performing high-resolution strain measurements by using magnetic resonance (MR) tagging. Multispectral radio-frequency 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.
Original language | English (US) |
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Pages (from-to) | 677-683 |
Number of pages | 7 |
Journal | RADIOLOGY |
Volume | 180 |
Issue number | 3 |
DOIs | |
State | Published - Sep 1991 |
Keywords
- Heart, function, 51.1214
- Magnetic resonance (MR), physics
- Magnetic resonance (MR), technology
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging