BZDUSEK, Karl Antonin,ALLAIRE, Stephane,HARDCASTLE, Nicholas Gordon Lance,TOME, Wolfgang Axel
申请号：
IBIB2011/055145
公开号：
WO2012/069965A1
申请日:
2011.11.17
申请国别(地区):
WO
年份:
2012
代理人:
摘要：
A radiation therapy planning system includes a planning module (20) which receives a first planning image set from a diagnostic imaging apparatus (10) and uses automatic segmentation tools (22) or manual segmentation tools (24) and a radiation therapy planning system (32) to generate a first radiation therapy plan. After the first radiation therapy plan has been applied for one or more therapy sessions, a second planning image set is generated. The planning module (20) uses a deformable image registration algorithm (30) to register the planning image set sand generate a corresponding deformation map which is applied to segmented objects of interest (OOIs) of the segmented first planning image set to propagate the objects of interest onto the second planning image set. The deformation map is corrected in accordance with deviations between the propagated and actual OOI locations in two steps: 1) manual and/or automated corrections of the propagated OOIs are performed, such as region of interest contour corrections and/or landmark point of interest positions 2) a corrected global deformation map is generated from these local OOI corrections. The corrected deformation map is applied to the first radiation therapy plan and an accumulated radiation map depicting the radiation accumulated in each OOI during the therapy session(s) implemented with the first radiation therapy plan.Linvention concerne un système de planification de radiothérapie comprenant un module de planification (20) qui reçoit un premier ensemble dimages de planification dun appareil dimagerie de diagnostic (10) et qui utilise des outils de segmentation automatique (22) ou des outils de segmentation manuelle (24) et un système de planification de radiothérapie (32) destiné à produire un premier plan de radiothérapie. Après que le premier plan de radiothérapie a été appliqué lors dune ou plusieurs sessions de thérapie, un second ensemble dimages de planification est produit. Le module de planification (20
