Two-step image registration based on control volumes / 南方医科大学学报
Journal of Southern Medical University
;
(12): 1801-1805, 2011.
Article
in Chinese
| WPRIM
| ID: wpr-333807
ABSTRACT
<p><b>OBJECTIVE</b>To increase the accuracy of beam targeting and improve the dose distributions in radiotherapy using a robust image registration algorithm based on control volumes.</p><p><b>METHODS</b>Control volume mapping and thin-plate spline deformable transformation were combined. The use of the control volumes increased the accuracy for the deformable registration. A bi-directional mapping method was also employed to correctly match the control volumes.</p><p><b>RESULTS</b>The clinical images were simulated using the proposed two-step image registration algorithm. The simulation results indicated that the registration algorithm was robust and universal, even in cases of obvious deformation.</p><p><b>CONCLUSIONS</b>The algorithm provides a more convenient and robust resolution as compared to manual landmark-based methods and single-step deformable transformations, and may help in automatic image registration in radiation therapy.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Algorithms
/
Image Processing, Computer-Assisted
/
Radiotherapy Planning, Computer-Assisted
/
Radiotherapy, Conformal
/
Methods
Type of study:
Practice guideline
Limits:
Humans
Language:
Chinese
Journal:
Journal of Southern Medical University
Year:
2011
Type:
Article
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