Hybrid diffusion imaging (HYDI)

Andrew L. Alexander, Yu Chien Wu, Pradeep C. Venkat

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

5 Scopus citations

Abstract

Hybrid diffusion imaging (HYDI) is a new diffusion MRI method for characterizing complex diffusion. Diffusion-weighted measurements are obtained on multiple 'shells' of constant diffusion weighting. This diffusion encoding approach is amenable to multiple types of diffusion imaging analysis. The inner shells may be used to estimate the diffusion tensor and generate maps of the diffusion anisotropy and mean diffusivity. The outer shell, which has high angular resolution, may be used to estimate the distribution of white matter fiber tracts in a voxel. Finally, all of the data may be used to estimate the diffusion displacement spectrum for characterizing the full diffusion behavior in a voxel. HYDI experiments were performed on the brains of healthy volunteers and the results are presented. Overall, HYDI is an efficient and promising method for characterizing complex diffusion in the human brain and potentially other tissues.

Original languageEnglish (US)
Title of host publication28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06
Pages2245-2248
Number of pages4
DOIs
StatePublished - Dec 1 2006
Event28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06 - New York, NY, United States
Duration: Aug 30 2006Sep 3 2006

Publication series

NameAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
ISSN (Print)0589-1019

Other

Other28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06
CountryUnited States
CityNew York, NY
Period8/30/069/3/06

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ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

Cite this

Alexander, A. L., Wu, Y. C., & Venkat, P. C. (2006). Hybrid diffusion imaging (HYDI). In 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06 (pp. 2245-2248). [4030500] (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings). https://doi.org/10.1109/IEMBS.2006.259453