Automatic Organ Localization for Adaptive Radiation Therapy for Prostate Cancer
Abstract
The focus of this study is adaptive radiation therapy (ART) for prostate cancer, in which the treatment is to be adjusted over time, based on CT images acquired on the treatment table before each daily treatment. The goals are twofold: We seek to make ART for prostate cancer possible, and we seek to evaluate how useful it will be. As steps toward making it possible, we have developed software tools to localize the areas to be targeted or avoided, and to evaluate the motion of the tissue from day to day. We have produced a tool called ImMap that can perform these tasks, and are beginning to study its reliability and effectiveness. To evaluate the utility of ART, we are using a data set consisting of repeated CT scans from approximately 20 treatment days for five anonymous cancer subjects, along with manual segmentations of the prostate, bladder, and rectum for each subject and each day. We have evaluated the motion of the body due to setup error, and are preparing to evaluate the motions of the organs with respect to the body.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2004
- Accession Number
- ADA428913
Entities
People
- Brad Davis
- Mark Foskey
- Sarang C. Joshi
Organizations
- University of North Carolina at Chapel Hill