MAGNETIC RESONANCE ANGIOGRAPHY USING FLOATING TABLE PROJECTION IMAGING

摘要

A 3D projection reconstruction pulse sequence is employed to acquire CEMRA data as the subject is continuously moved through the field of view of the MRI system. The acquired k-spaced data is phase corrected to offset the table motion and the corrected data is used to reconstruct an image over a field of view that far exceeds the size of the MRI system field of view. In one embodiment the image is formed as a set of anatomic subregion images which are concatenated to form a single image and in another embodiment a series of images of each anatomic subregion are produced to depict the dynamic inflow of contrast agent.