MR-guided catheterization with injection of Gd-based contrast agent allows for quantitative perfusion measurement of the myocardium in coronary interventions. However, Gd is contraindicated in patients with impaired renal function, and it changes the relaxation times in the target organ after injection, so that a characterization of the target tissue becomes difficult. In this study, we provide a different solution to quantify perfusion using arterial spin labelling with a catheter based coil. The results show that ASL using a local catheter based labelling coil provides an alternative technique for perfusion measurements during cardiovascular interventions without exogenous contrast agents.
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