Figure 5

Transsubclavian TAVI under CMR guidance using real-time TrueFISP sequences. The CoreValve prosthesis was deployed stepwise across the aortic annulus under rtCMR monitoring using the commercially available interactive real-time projection reconstruction TrueFISP sequence with radial k-space filling during free breathing and without cardiac triggering. The sequence provides excellent instrument-to-background contrast and a high frame rate of 7 fps allowing for accurate positioning and for detailed monitoring of the valve deployment process.