{ "id": "0812.0083", "version": "v1", "published": "2008-11-29T15:36:13.000Z", "updated": "2008-11-29T15:36:13.000Z", "title": "On convergence of the optimization process in Radiotherapy treatment planning", "authors": [ "I. Hoveijn" ], "comment": "9 pages, 2 figures", "categories": [ "math.CA", "math.OC", "physics.med-ph" ], "abstract": "The Radiotherapy treatment planning optimization process based on a quasi-Newton algorithm with an object function containing dose-volume constraints is not guaranteed to converge when the dose value in the dose-volume constraint is a critical value of the dose distribution. This is caused by finite differentiability of the dose-volume histogram at such values. A closer look near such values reveals that convergence is most likely not at stake, but it might be slowed down.", "revisions": [ { "version": "v1", "updated": "2008-11-29T15:36:13.000Z" } ], "analyses": { "keywords": [ "convergence", "object function containing dose-volume constraints", "radiotherapy treatment planning optimization process" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0812.0083H" } } }