No conflict of interest was declared.
MRI/TRUS data fusion for brachytherapy†
Version of Record online: 8 SEP 2006
Copyright © 2006 John Wiley & Sons, Ltd.
The International Journal of Medical Robotics and Computer Assisted Surgery
Volume 2, Issue 3, pages 256–261, September 2006
How to Cite
Daanen, V., Gastaldo, J., Giraud, J. Y., Fourneret, P., Descotes, J. L., Bolla, M., Collomb, D. and Troccaz, J. (2006), MRI/TRUS data fusion for brachytherapy. Int. J. Med. Robotics Comput. Assist. Surg., 2: 256–261. doi: 10.1002/rcs.95
- Issue online: 8 SEP 2006
- Version of Record online: 8 SEP 2006
- Manuscript Accepted: 9 JUN 2006
- Ministry of Health, France
- PHRC National 2003 Prostate-Echo
- image fusion;
- prostate brachytherapy
Prostate brachytherapy consists in placing radioactive seeds for tumour destruction under transrectal ultrasound imaging (TRUS) control. It requires prostate delineation from the images for dose planning. Because ultrasound imaging is patient- and operator-dependent, we have proposed to fuse MRI data to TRUS data to make image processing more reliable. The technical accuracy of this approach has already been evaluated.
We present work in progress concerning the evaluation of the approach from the dosimetry viewpoint. The objective is to determine what impact this system may have on the treatment of the patient. Dose planning is performed from initial TRUS prostate contours and evaluated on contours modified by data fusion.
For the eight patients included, we demonstrate that TRUS prostate volume is most often underestimated and that dose is overestimated in a correlated way. However, dose constraints are still verified for those eight patients.
This confirms our initial hypothesis. Copyright © 2006 John Wiley & Sons, Ltd.