The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.
A planning quality evaluation tool for prostate adaptive IMRT based on machine learning
Open accessAbstract
Purpose: To ensure plan quality for adaptive IMRT of the prostate, we developed a quantitative evaluation tool using a machine learning approach. This tool generates dose volume histograms (DVHs) of organs‐at‐risk (OARs) based on prior plans as a reference, to be compared with the adaptive plan derived from fluence map deformation. Methods: Under the same configuration using seven‐field 15 MV photon beams, DVHs of OARs (bladder and rectum) were estimated based on anatomical information of the patient and a model learned from a database of high quality prior plans. In this study, the anatomical information was characterized by the organ volumes and distance‐to‐target histogram (DTH). The database consists of 198 high quality prostate plans and was validated with 14 cases outside the training pool. Principal component analysis (PCA) was applied to DVHs and DTHs to quantify their salient features. Then, support vector regression (SVR) was implemented to establish the correlation between the features of the DVH and the anatomical information. Results: DVH/DTH curves could be characterized sufficiently just using only two or three truncated principal components, thus, patient anatomical information was quantified with reduced numbers of variables. The evaluation of the model using the test data set demonstrated its accuracy in prediction and effectiveness in improving ART planning quality. Conclusions: An adaptive IMRT plan quality evaluation tool based on machine learning has been developed, which estimates OAR sparing and provides reference in evaluating ART.
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Metadata
- Authors
- Zhu, X., Ge, Y., Li, T., Thongphiew, D., Yin, F., & Wu, Q. J.
- Venue
- Medical Physics
- Publisher
- Wiley
- Published
- 2011-01-11
- Volume
- 38
- Issue
- 2
- Pages
- 719-726
- ISSN
- 0094-2405 (ISSN-L)
- 2473-4209
- OpenAlex
- W1963932209
- Cited by
- 324
- References
- 11
- FWCI
- 11.11
- Type
- journal article
- Language
- en
- Open access
- green
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