Quality assurance of serial 3D image registration, fusion, and segmentation.
Radiotherapy relies on images to plan, guide, and assess treatment. Image registration, fusion, and segmentation are integral to these processes; specifically for aiding anatomic delineation, assessing organ motion, and aligning targets with treatment beams in image-guided radiation therapy (IGRT). Future developments in image registration will also improve estimations of the actual dose delivered and quantitative assessment in patient follow-up exams. This article summarizes common and emerging technologies and reviews the role of image registration, fusion, and segmentation in radiotherapy processes. The current quality assurance practices are summarized, and implications for clinical procedures are discussed.
Sharpe
Michael
M
Radiation Medicine Program, Princess Margaret Hospital, University Health Network, and Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada. michael.sharp@rmp.uhn.on.ca
Brock
Kristy K
KK
D007090:Image Interpretation, Computer-Assisted / Q000592:standards*; D009068:Movement; D017063:Outcome Assessment, Health Care; D017410:Practice Guidelines as Topic; D011786:Quality Control; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted / Q000592:standards; D011881:Radiotherapy, Computer-Assisted / Q000592:standards*; D013679:Technology, Radiologic / Q000592:standards / Q000639:trends