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SUMMARY:Promotionsvortrag Physik: Fortschritte im patientenspezifische
 n Bewegungs- und Dosismanagement in der Compu-tertomographie für die 
 Strahlentherapie
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 00000010000000162F2A31C90BD443BF85C506E05FD0F2
DESCRIPTION:Ankündigung des Promotionsvortrags von: Herrn Niklas Lack
 ner Modern radiotherapy relies on computed tomography (CT) for geometr
 ically accurate imaging and electron density information required for 
 dose calculation\, target delineation\, and treatment planning. Howeve
 r\, respiratory motion\, inconsistent scan coverage and imaging dose\,
  and the lack of automated quality assurance (QA) can compromise image
  quality\, geometric accuracy\, and the consistency of planning CT acq
 uisitions. This presentation summarizes the three complementary develo
 pments of my doctoral thesis. First\, a novel respiratory surrogate an
 d visual feedback system that monitors respiratory motion\, compensate
 s for table-induced distortions\, and provides real-time breathing gui
 dance with robust signals under challenging conditions. Second\, the f
 easibility of surface-guided motion-adaptive four-dimensional CT (4DCT
 ) as an alternative to the established infrared-marker standard. Combi
 ning phantom experiments\, characterization of patient-specific breath
 ing patterns from a clinical cohort\, and prototype development\, it a
 chieved artifact-reduced imaging comparable to infrared-marker trackin
 g. Third\, an intelligent dose management system for automated QA of p
 lanning CTs. Ap-plied to over 13\,000 examinations\, it identified pro
 tocol deviations enabling harmonized scan lengths\, optimized tube cur
 rent modulation\, and more standardized workflows. Together\, these de
 velopments improve the robustness and safety of planning CTs through a
 dvances in motion management and automated quality assurance. (Vortrag
  auf Englisch) Dem Vortrag schließt sich eine Diskussion von 15 Minut
 en an. Vortrag und Diskussion sind öffentlich. Diesen Verfahrensteile
 n folgt ein nicht öffentliches Rigorosum von 45 Minuten.
DTSTART:20260717T130000Z
DTEND:20260717T143000Z
LOCATION:SR Strahlentherapie\, Strahlen- und Medizinische Poliklinik\,
  Universitätsstr. 27\, Erlangen
DTSTAMP:20260712T230653Z
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