Systems and methods for parametric mapping for correction of noise-based systematic bias of DTI metrics, using a DTI mapping phantom

摘要

A system and method for minimizing, if not completely eliminating, the systematic bias present in an MR system used for DTI is disclosed. A test object or “phantom” of the present invention is scanned with a desired DTI protocol. The eigenvalues measured with the phantom are compared to the actual values that should have been measured, and a parametric map that links measured eigenvalues to actual eigenvalues is calculated, which is applicable to the desired protocol. Future eigenvalue measurements using this protocol can be recalibrated to actual eigenvalues using this map.