Key result
The HARP-MRI pulse sequence acquired multiframe harmonic phase images in real time over two heartbeats, yielding 2D myocardial strain measurements highly correlated (r=0.832) with conventional tagged MRI.
Effect estimate: r = 0.832
The development of a real-time HARP-MRI pulse sequence enables rapid quantification and visualization of two-dimensional myocardial strain.
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May enable faster real-time strain assessment in CMR; leaves open prospective validation before clinical adoption.
Sampath et al. (2003) studied Healthy volunteers (n=6). HARP-MRI pulse sequence vs. Conventional 1-1 SPAMM tagged MRI was evaluated on Correlation of Lagrangian circumferential strain between breath-hold HARP-MRI and conventional tagging (r = 0.832). The HARP-MRI pulse sequence acquired multiframe harmonic phase images in real time over two heartbeats, yielding 2D myocardial strain measurements highly correlated (r=0.832) with conventional tagged MRI.
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