Motion Detection in Diffusion MRI via Online ODF Estimation
Joint Authors
Aganj, Iman
Caruyer, Emmanuel
Deriche, Rachid
Lenglet, Christophe
Sapiro, Guillermo
Source
International Journal of Biomedical Imaging
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-02-21
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The acquisition of high angular resolution diffusion MRI is particularly long and subject motion can become an issue.
The orientation distribution function (ODF) can be reconstructed online incrementally from diffusion-weighted MRI with a Kalman filtering framework.
This online reconstruction provides real-time feedback throughout the acquisition process.
In this article, the Kalman filter is first adapted to the reconstruction of the ODF in constant solid angle.
Then, a method called STAR (STatistical Analysis of Residuals) is presented and applied to the online detection of motion in high angular resolution diffusion images.
Compared to existing techniques, this method is image based and is built on top of a Kalman filter.
Therefore, it introduces no additional scan time and does not require additional hardware.
The performance of STAR is tested on simulated and real data and compared to the classical generalized likelihood ratio test.
Successful detection of small motion is reported (rotation under 2°) with no delay and robustness to noise.
American Psychological Association (APA)
Caruyer, Emmanuel& Aganj, Iman& Lenglet, Christophe& Sapiro, Guillermo& Deriche, Rachid. 2013. Motion Detection in Diffusion MRI via Online ODF Estimation. International Journal of Biomedical Imaging،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-503116
Modern Language Association (MLA)
Caruyer, Emmanuel…[et al.]. Motion Detection in Diffusion MRI via Online ODF Estimation. International Journal of Biomedical Imaging No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-503116
American Medical Association (AMA)
Caruyer, Emmanuel& Aganj, Iman& Lenglet, Christophe& Sapiro, Guillermo& Deriche, Rachid. Motion Detection in Diffusion MRI via Online ODF Estimation. International Journal of Biomedical Imaging. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-503116
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-503116