Motion corrected LV quantification based on 3D modelling for improved functional assessment in cardiac MRI

Physics in Medicine and Biology
Y M LiewE Lim

Abstract

Cine MRI is a clinical reference standard for the quantitative assessment of cardiac function, but reproducibility is confounded by motion artefacts. We explore the feasibility of a motion corrected 3D left ventricle (LV) quantification method, incorporating multislice image registration into the 3D model reconstruction, to improve reproducibility of 3D LV functional quantification. Multi-breath-hold short-axis and radial long-axis images were acquired from 10 patients and 10 healthy subjects. The proposed framework reduced misalignment between slices to subpixel accuracy (2.88 to 1.21 mm), and improved interstudy reproducibility for 5 important clinical functional measures, i.e. end-diastolic volume, end-systolic volume, ejection fraction, myocardial mass and 3D-sphericity index, as reflected in a reduction in the sample size required to detect statistically significant cardiac changes: a reduction of 21-66%. Our investigation on the optimum registration parameters, including both cardiac time frames and number of long-axis (LA) slices, suggested that a single time frame is adequate for motion correction whereas integrating more LA slices can improve registration and model reconstruction accuracy for improved functional quanti...Continue Reading

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Citations

Jul 16, 2016·Journal of Magnetic Resonance Imaging : JMRI·Chen Onn LeongEinly Lim
Nov 11, 2016·Medical & Biological Engineering & Computing·Azira KhalilYih Miin Liew
Dec 21, 2017·Coronary Artery Disease·Bee Ting ChanEinly Lim
Jan 10, 2018·Journal of Magnetic Resonance Imaging : JMRI·Li Kuo TanYih Miin Liew
Sep 20, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Chen Onn LeongYih Miin Liew
Dec 5, 2019·International Journal for Numerical Methods in Biomedical Engineering·Chin Neng LeongEinly Lim
Oct 3, 2020·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·Shoon Hui ChuahYih Miin Liew
Jun 1, 2021·International Journal for Numerical Methods in Biomedical Engineering·Chen Onn LeongEinly Lim

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