METHOD FOR ACQUIRING TIME-RESOLVED MR IMAGES USING CONTINUOUS TABLE MOTION

摘要

MRA data is acquired from an extended field of view by translating the patient through the bore of the MRI system as three-dimensional MRA data sets are acquired and time-resolved images reconstructed. The leading edge of a contrast bolus can be tracked in these images and parameters such as bolus velocity and bolus arrival time can be calculated to provide functional information in addition to anatomical information. Temporal resolution is improved by under sampling peripheral k-space and sampling the center of k-space at a higher temporal rate.