SYSTEM AND METHOD FOR IMAGE PROCESSING WITH HIGHLY UNDERSAMPLED IMAGING DATA

摘要

A system and method for processing highly undersampled multi-echo spin-echo data by linearizing the slice-resolved extended phase graph model generates highly accurate T 2 maps with indirect echo compensation. Principal components are used to linearize the signal model to estimate the T 2 decay curves which can be fitted to the slice-resolved model for T2 estimation. In another example of image processing for highly undersampled data, a joint bi-exponential fitting process can compensate for image variations within a voxel and thus provide partial voxel compensation to produce more accurate T 2 maps.