Quantitative framework for prospective motion correction evaluation.

ABSTRACT:

Purpose

Establishing a framework to evaluate performances of prospective motion correction (PMC) MRI considering motion variability between MRI scans.

Methods

A framework was developed to obtain quantitative comparisons between different motion correction setups, considering that varying intrinsic motion patterns between acquisitions can induce bias. Intrinsic motion was considered by replaying in a phantom experiment the recorded motion trajectories from subjects. T1-weighted MRI on five volunteers and two different marker fixations (mouth guard and nose bridge fixations) were used to test the framework. Two metrics were investigated to quantify the improvement of the image quality with PMC.

Results

Motion patterns vary between subjects as well as between repeated sc

SUBMITTER: Pannetier NA 

PROVIDER: S-EPMC4567538 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature