Target motion measurement without implanted markers and its validation by comparison with manually obtained data

Autor:	Lucia, Vences, Jörn, Wulf, Dirk, Vordermark, Otto, Sauer, Kajetan, Berlinger, Michael, Roth
Rok vydání:	2005
Předmět:	Male Lung Neoplasms Time Factors Radiotherapy Movement Radiotherapy Planning Computer-Assisted Respiration Prostatic Neoplasms Reproducibility of Results Radiotherapy Dosage Motion Neoplasms Subtraction Technique Humans Female Tomography X-Ray Computed Software
Zdroj:	Medical physics. 32(11)
ISSN:	0094-2405
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=pmid________::50ded5e0bde44fd3f8e218c0704a3b01 https://pubmed.ncbi.nlm.nih.gov/16370430 Zobrazit plný text záznamu Plný text