USE OF A PROJECTION RECONSTRUCTION METHOD TO DECREASE MOTION SENSITIVITY IN DIFFUSION-WEIGHTED MRI

Diffusion-weighted MRI is a clinically useful technique, but its utili ty is compromised by high sensitivity to patient motion. Use of radial -scan data acquisition and projection reconstruction, rather than the conventional Fourier imaging method, can substantially reduce the sens itivity to global translational motion of the object. The basis of thi s concept and a demonstration of the technique in an animal imaging ex periment are presented.