Single-Shot R1-Mapping Strategies for Dynamic Contrast Agent Quantification
Stehning C, Winkelmann S, Botnar R, Schaeffter T, Doessel O
Philips Research Laboratories
We investigated the use of radial imaging and k-space preparation filters in single-shot R1-mapping for dynamic contrast agent quantification in carotid imaging. Two optimized sampling schemes for multiple image generation from a single shot data set were compared. Both techniques yielded accurate R1-maps in about 2s for a sub-millimeter in-plane resolution in phantoms and healthy volunteers. The results for short R1 values, as in the presence of contrast agents, was superior for the golden cut based profile order due to the high flexibility in time-point resolution.