Performing daily prostate targeting with a standard V-EPID and an automated radio-opaque marker detection algorithm.
Online prostate positioning using gold markers and a standard video-based electronic portal imaging device is reported. The average systematic (random) errors have been reduced from 2.1 mm (2.7 mm) to 0.5 mm (1.5 mm) in AP direction, 1.1 mm (1.7 mm) to 0.7 mm (1.2 mm) SI and 1.2 mm (1.7 mm) to 0.6 mm (1.3 mm) LR.
Department of radiation oncology and Centre de Recherche en Cancérologie de l'Université Laval, Hôtel-Dieu de Québec, Centre Hospitalier Universitaire de Québec (CHUQ), 11 Cote du Palais, Québec, Canada, G1R 2J6.
Luc
L
Beaulieu
Louis-Martin
LM
Girouard
Sylviane
S
Aubin
Jean-François
JF
Aubry
Lucie
L
Brouard
Lise
L
Roy-Lacroix
Jean
J
Dumont
Daniel
D
Tremblay
Jacques
J
Laverdière
Eric
E
Vigneault
D000465:Algorithms; D004582:Electronics, Medical; D006801:Humans; D008297:Male; D011471:Prostatic Neoplasms / Q000532:radiotherapy*; D011878:Radiotherapy / Q000295:instrumentation; D012825:Silicon
D012825:Silicon