Ex) Article Title, Author, Keywords
Ex) Article Title, Author, Keywords
Korean Journal of Medical Physics 2010; 21(4): 360-366
Published online December 25, 2010
Copyright © Korean Society of Medical Physics.
Justin C. Park†, Sung Ho Park*, Jin Sung Kim†, Youngyih Han†, Sang-Gyu Ju†, Eunhyuk Shin†, Jung Suk Shin†, Hee-Chul Park†, Yong Chan Ahn†, Willian Y. Song‡
박천주†ㆍ박성호*ㆍ김진성†ㆍ한영이†ㆍ주상규†ㆍ신은혁†ㆍ신정석†ㆍ박희철†ㆍ안용찬†ㆍWilliam Y. Song‡
To generate on-board digital tomosynthesis (DTS) for three-dimensionalimage-guided radiation therapy (IGRT) as an alternative to conventional portal imaging or on-board cone-beam computed tomography (CBCT), two clinical cases (liver and bladder) were selected to illustrate the capabilities of on-board DTS for IGRT. DTS images were generated from subsets of CBCT projection data (45, 162 projections) using half-fan mode scanning with a Feldkamp-type reconstruction algorithm. Digital tomosynthesis slices appeared similar to coincident CBCT planes and yielded substantially more anatomic information. Improved bony and soft-tissue visibility in DTS images is likely to improve target localization compared with radiographic verification techniques and might allow for daily localization of a soft-tissue target. Digital tomosynthesis might allow targeting of the treatment volume on the basis of daily localization.
KeywordsDigital Tomosynthesis, IGRT, Patient positioning, On-board Imager (OBI)
pISSN 2508-4445
eISSN 2508-4453
Formerly ISSN 1226-5829
Frequency: Quarterly
