Abstract
Although several methods exist for the analysis of tagged MR images of the left ventricle (LV), analysis of the right ventricle (RV) remains challenging due to its complex anatomy and significant through plane motion. We present here preliminary results of our new motion analysis method, both for RV and LV, in healthy human volunteers. In this method, following standard myocardial and tag segmentation of cardiac gated cine lagged MR images; a 4D B-spline based parametric motion field was computed for a volume of interest encompassing both ventricles. Using this motion field, 3D displacements and strains were calculated on the RV and LV. We observed that for both chambers the circumferential strain (Ecc) decreased with a constant rate throughout systole. The systolic strain rate displayed spatial similarity not only for the LV but also for the RV. For RV free wall, mean systolic Ecc was -0.19 +/- 0.05 with an average coefficient of variability of 20%. The 4D B-spline based motion analysis technique for tagged MRI yields compatible results for the LV and gives consistent circumferential strain measures for the RV free wall. Tagged MRI based RV mechanical analysis can be used along with LV results for a more complete cardiac evaluation.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Publisher | Society of Photo-Optical Instrumentation Engineers |
| Pages | 225-232 |
| Number of pages | 8 |
| Volume | 3978 |
| State | Published - 2000 |
| Event | Medical Imaging 2000: Physiology and Function from Multidimensional Images - San Diego, CA, USA Duration: Feb 13 2000 → Feb 15 2000 |
Other
| Other | Medical Imaging 2000: Physiology and Function from Multidimensional Images |
|---|---|
| City | San Diego, CA, USA |
| Period | 2/13/00 → 2/15/00 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics