Accelerated 3D carotid vessel wall imaging working with Compressed Sensing

Accelerated 3D carotid vessel wall imaging working with Compressed Sensing

Blog Article

Introduction: Multi-contrast MRI is broadly used to impression the vessel wall and characterize the composition of atherosclerotic plaques. Regular multi-slice methods suffer from prolonged scan occasions, have minimal sensible resolution as a consequence of SNR constraints and are not suited to plaque quantitation. Multi-contrast bilateral carotid imaging applying 3D Interior Volume Quickly Spin Echo Imaging (3D IVI FSE) has been Formerly demonstrated [1]. 3D scans supply SNR benefits but tend to be more susceptible to artifacts from swallowing in the course of very long scans. The surplus SNR typically connected website with 3D imaging might be expended for overall scan time reduction by incorporating parallel imaging or compressive sensing (CS). The latest developments in information and facts idea have produce quite a few rising non linear reconstruction algorithms based upon the CS framework which provide flexible sampling constraints without compromising graphic high-quality [two]. On this function we speed up facts acquisition for 3D IVI FSE carotid scans by incorporating 4 fold random undersampling and minimum amount L1 norm reconstruction. The influence on the sparsifying foundation and regularization penalties on high-quality anatomical specifics from the wall-lumen interface is analyzed.