Application of elastic registration based on Demons algorithm in cone beam CT / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 103-106, 2014.
Article
in Chinese
| WPRIM
| ID: wpr-259688
ABSTRACT
We applied Demons and accelerated Demons elastic registration algorithm in radiotherapy cone beam CT (CBCT) images, We provided software support for real-time understanding of organ changes during radiotherapy. We wrote a 3D CBCT image elastic registration program using Matlab software, and we tested and verified the images of two patients with cervical cancer 3D CBCT images for elastic registration, based on the classic Demons algorithm, minimum mean square error (MSE) decreased 59.7%, correlation coefficient (CC) increased 11.0%. While for the accelerated Demons algorithm, MSE decreased 40.1%, CC increased 7.2%. The experimental verification with two methods of Demons algorithm obtained the desired results, but the small difference appeared to be lack of precision, and the total registration time was a little long. All these problems need to be further improved for accuracy and reducing of time.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Algorithms
/
Software
/
Image Interpretation, Computer-Assisted
/
Imaging, Three-Dimensional
/
Cone-Beam Computed Tomography
Type of study:
Prognostic study
Limits:
Humans
Language:
Chinese
Journal:
Journal of Biomedical Engineering
Year:
2014
Type:
Article
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