Frame average optimization of cine‐mode EPID images used for routine clinical in vivo patient dose verification of VMAT deliveries

Purpose: The in vivo 3D dose delivered to a patient during volumetric modulated arc therapy (VMAT) delivery can be calculated using electronic portal imaging device (EPID) images. These images must be acquired in cine‐mode (i.e., “movie” mode) in order to capture the time‐dependent delivery informat...

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Veröffentlicht in:	Medical physics (Lancaster) 2016-01, Vol.43 (1), p.254-261
Hauptverfasser:	McCowan, P. M., McCurdy, B. M. C.
Format:	Artikel
Sprache:	eng
Schlagworte:	ACCURACY BIOMEDICAL RADIOGRAPHY COMPUTER CODES Dose‐volume analysis dosimetry Dosimetry/exposure assessment Electrical Equipment and Supplies EPID dosimetry Humans image acquisition Image guided radiation therapy Image reconstruction Imaging, Three-Dimensional - instrumentation IN VIVO Laser Doppler velocimetry LINEAR ACCELERATORS Medical image reconstruction Multileaf collimators Neoplasms - radiotherapy optimisation OPTIMIZATION patient dose reconstruction PATIENTS PHANTOMS Radiation Dosage RADIATION DOSES RADIATION PROTECTION AND DOSIMETRY radiation therapy RADIOLOGY AND NUCLEAR MEDICINE Radiometry RADIOTHERAPY Radiotherapy Dosage Radiotherapy Planning, Computer-Assisted - methods Radiotherapy, Intensity-Modulated Scintigraphy SPATIAL RESOLUTION Three dimensional image processing TIME DEPENDENCE treatment verification
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