Estimating myocardial fiber orientations by template warping

Hari Sundar, Dinggang Shen, George Biros, Harold Litt, Christos Davatzikos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

18 Citations (Scopus)

Abstract

Myocardial fiber orientations are an important element for accurate modeling of cardiac electromechanics. However it is extremely difficult to estimate these directly in vivo with current imaging techniques. Most current methods for cardiac modeling use synthetic models of fiber orientation which may fail to capture subtle variations of fiber orientations in different hearts. We present a method to map the fiber orientations obtained from diffusion tensors from a template onto patient-specific cardiac geometry, using elastic registration followed by a reorientation of the diffusion tensors based on the local rotation component of the transformation. The effectiveness of the diffusion tensor mapping is validated on a set of diffusion tensor imaging datasets obtained from 19 canine subjects. The algorithm was able to map the diffusion tensors effectively for both healthy and failing hearts.

Original languageEnglish
Title of host publication2006 3rd IEEE International Symposium on Biomedical Imaging
Subtitle of host publicationFrom Nano to Macro - Proceedings
Pages73-76
Number of pages4
Publication statusPublished - 2006
Event2006 3rd IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Arlington, VA, United States
Duration: 2006 Apr 62006 Apr 9

Publication series

Name2006 3rd IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Proceedings
Volume2006

Other

Other2006 3rd IEEE International Symposium on Biomedical Imaging: From Nano to Macro
CountryUnited States
CityArlington, VA
Period06/4/606/4/9

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Estimating myocardial fiber orientations by template warping'. Together they form a unique fingerprint.

  • Cite this

    Sundar, H., Shen, D., Biros, G., Litt, H., & Davatzikos, C. (2006). Estimating myocardial fiber orientations by template warping. In 2006 3rd IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Proceedings (pp. 73-76). [1624855] (2006 3rd IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Proceedings; Vol. 2006).