High-resolution strain measurements using magnetic resonance tagging with multispectral radiofrequency pulses successfully detected a transmural gradient in the strain of a normal dog heart.
Can high-resolution strain measurements using MR tagging detect transmural gradients in myocardial strain in a normal dog heart?
High-resolution MR tagging with multispectral radiofrequency pulses can precisely measure transmural gradients in myocardial strain.
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.
McVeigh et al. (1991) studied Normal dog heart. High-resolution strain measurements using magnetic resonance (MR) tagging was evaluated on Measurement of transmural gradient in myocardial strain. High-resolution strain measurements using magnetic resonance tagging with multispectral radiofrequency pulses successfully detected a transmural gradient in the strain of a normal dog heart.