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Type: Journal article
Title: Technological Approaches to In-room CBCT Imaging
Author: Steinke, M.
Bezak, E.
Citation: Australasian Physical and Engineering Sciences in Medicine, 2008; 31(3):167-179
Publisher: Australasian College of Physical Scientists and Engineers in Medicine
Issue Date: 2008
ISSN: 0158-9938
Statement of
Steinke, MF and Bezak, E
Abstract: The use of Cone-Beam Computed Tomography (CBCT) in Image-Guided Radiation Therapy (IGRT) has become increasingly feasible and popular in recent years. Advances and developments in Flat-Panel Imager (FPI) technology and image reconstruction software allow for linac-mounted 3D CBCT imaging. Taking CBCT images on a daily/weekly basis, offers the possibility to guide the treatment beam according to tumour motion and to apply changes to the treatment plan if necessary. This however raises the issue of additional imaging dose and thus increases in secondary cancer risk. The performance characteristics of kV-CBCT and MV-CBCT solutions currently offered by Elekta, Siemens and Varian are compared in this paper in terms of additional imaging dose and image quality. The review also outlines applications of CBCT for IGRT and Adaptive Radiotherapy (ART). As CBCT is not the only in-room IGRT platform, helical MV-CT (Tomotherapy) and in-room CT designs are also presented.
Keywords: Humans; Radiographic Image Interpretation, Computer-Assisted; Tomography, Spiral Computed; Radiotherapy, Computer-Assisted; Radiotherapy, Conformal; Radiotherapy Dosage; Radiotherapy Planning, Computer-Assisted; Biotechnology
RMID: 0020083512
DOI: 10.1007/BF03179341
Published version:;dn=331176152166278;res=IELENG
Appears in Collections:Physics publications

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