In this work, zoomed quantitative susceptibility mapping (QSM) is proposed as an alternative way of accelerating high resolution QSM data acquisition at 7T. Inner volume excitation is realized with 2D spatially selective excitation, targeting the midbrain, which is the primary region of investigation for Parkinson’s disease. The consequence of reducing the excited region on the reconstructed susceptibility maps was investigated via simulations, where the diameter of a brain mask was gradually decreased in the QSM processing pipeline. The susceptibility maps of a healthy volunteer at 7T acquired with inner volume excitation are compared to those derived from a whole brain.
This abstract and the presentation materials are available to members only; a login is required.