Abstract：
:For an effective radiotherapy the exact tumor location must be determined. The localization has to take into account patient's setup position as well as internal organ motion. Among the different localization methods, the use of a computer tomography (CT) scanner in the therapy room has been proposed recently. Achieving a CT with the patient on the therapy couch, a patient's treatment position is captured. We present a method to locate tumor considering internal organ motion and displacements due to respiration. We tested the method with prostate and lung patients. The method found the most probable tumor position as well as, for high-mobility tumors located in the lung, its trajectory during the respiratory cycle. The results of this novel method were validated by comparison with manually determined target position.
journal_name
Med Physjournal_title
Medical physicsauthors
Vences L,Wulf J,Vordermark D,Sauer O,Berlinger K,Roth Mdoi
10.1118/1.2103447subject
Has Abstractpub_date
2005-11-01 00:00:00pages
3431-9issue
11eissn
0094-2405issn
2473-4209journal_volume
32pub_type
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