Time-Of-Arrival Mapping for 3D Time-Resolved Contrast-Enhanced MRA

Stephen J. Riederer¹, Clifton R. Haider¹, Eric A. Borisch¹

A method is described for forming an image of the time-of-arrival (TOA) of intravenously administered contrast material as determined from time-resolved 3D contrast-enhanced MR angiography. Colorization of TOA values may aid interpretation and allow easy distinction between arteries and veins. The quality of the results depends on the temporal fidelity of the MR acquisition method. TOA mapping is demonstrated using in vivo studies of peripheral MRA.