A Framework for Assumption-Free Assessment of Imperfect Geometry of a Linac C-Arms

• Autoři: KYCIA Radoslaw Antoni; TABOR Z.; WOSZCZYNA A.; KABAT D.; TULIK M.; LATALA Z.
• Rok publikování: 2018
• Druh: Článek v odborném periodiku
• Časopis / Zdroj: ADVANCES IN APPLIED CLIFFORD ALGEBRAS
• Fakulta / Pracoviště MU: Přírodovědecká fakulta
• www: https://doi.org/10.1007/s00006-018-0873-8
• Doi: http://dx.doi.org/10.1007/s00006-018-0873-8
• Klíčová slova: Radiotherapy; Geometric algebra; Linac
• Popis: In the present paper a general setup for the determination of imperfect geometry of radiotherapeutic devices has been proposed that is based on a geometric algebra framework. To account for this imperfect geometry, two methods of a calibration were presented, consisting of determining for each angular position of a gantry a correction shift which must be applied to the origin of a laboratory frame of reference to place it along a radiation axis for this angular position. Closed form solutions for these corrections are provided.

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