ArticleMagnetic resonance in medicine2025
Myocardial perfusion mapping with intra-arterial spin labeling: Optimization of the labeling efficiency.
Article in Magnetic resonance in medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Myocardial perfusion mapping with intra-arterial spin labeling: Optimization of the labeling efficiency.Magnetic resonance in medicine · 2025Article
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6 authors.
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Abstract
purposeIntra-arterial spin labeling (iASL) applies a labeling pulse from a transmit coil at the tip of the catheter for regional myocardial perfusion measurements during MR-guided catheterizations. This study investigates the labeling efficiency of catheter-mounted coils under varying conditions to enable robust iASL measurements.
methodsThe labeling efficiency was assessed by analytical calculations, numerical simulations, and in vitro measurements at 3 T. Analytical solutions were provided for various simplified
results
conclusioniASL creates a saturation that is robust against variations in flow and coil positioning. The simulations could determine the threshold pulse power for robust iASL excitation, which needs to be adapted to applications in different vessels. Thus, iASL may provide an efficient alternative to perfusion measurements with exogenous contrast agents during MR-guided interventions.
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