Prospective correction of patient-specific respiratory motion in myocardial T₁ and T₂ mapping.

ABSTRACT:

Purpose

Respiratory motion in cardiovascular MRI presents a challenging problem with many potential solutions. Current approaches require breath-holds, apply retrospective image registration, or significantly increase scan time by respiratory gating. Myocardial T₁ and T₂ mapping techniques are particularly sensitive to motion as they require multiple source images to be accurately aligned prior to the estimation of tissue relaxation. We propose a patient-specific prospective motion correction (PROCO) strategy that corrects respiratory motion on the fly with the goal of reducing the spatial variation of myocardial parametric mapping techniques.

Methods

A rapid, patient-specific training scan was performed to characterize respiration-induced motion of the

SUBMITTER: Bush MA 

PROVIDER: S-EPMC8506658 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature