Correction of left ventricular wall thickening from short-axis cine MRI for basal-descent through-plane motion
Article first published online: 27 JAN 2011
Copyright © 2011 Wiley-Liss, Inc.
Journal of Magnetic Resonance Imaging
Volume 33, Issue 2, pages 464–473, February 2011
How to Cite
Chai, J.-W., Chen, W.-H., Chen, H.-M., Chiang, C.-M., Huang, J.-L., Fu, J., Chi-Chang Chen, C. and Lee, S.-K. (2011), Correction of left ventricular wall thickening from short-axis cine MRI for basal-descent through-plane motion. J. Magn. Reson. Imaging, 33: 464–473. doi: 10.1002/jmri.22462
- Issue published online: 27 JAN 2011
- Article first published online: 27 JAN 2011
- Manuscript Accepted: 10 NOV 2010
- Manuscript Received: 11 JUN 2009
- National Science Council. Grant Number: NSC96-2628-E-224-005-MY2
- cine MRI;
- tagged cardiac MRI;
- myocardial function;
- myocardial wall thickening
To solve the problem of the basal descent movement in quantification of the regional left ventricular (LV) myocardial wall thickness (WTh) and wall thickening (%WT) in short-axis (SA) cine MRI for effectively assessing the regional wall motion of LV myocardium.
Materials and Methods
LV long-axis tagged MRI and SA cine MRI were performed to calculate the longitudinal translation and circumferential WTh of LV myocardium in eight normal volunteers. The new SA end-systolic thickness (EST) data were reconstructed from the original EST data, based on the quantified longitudinal translation of LV myocardium.
The mean %WT of six segments in the basal section after correction was significantly different from that before correction in both intra- and inter-operator experiments. The polar map also showed the significant improvement of the variability of regional %WT and lack of quantification of %WT in the most basal SA slices after correction.
The proposed technique demonstrated an important advantage to calculate the %WT in the most basal SA myocardial tissue, which was considered difficult to be achieved using cine MRI. J. Magn. Reson. Imaging 2011;33:464–473. © 2011 Wiley-Liss, Inc.