Automated contour mapping with a regional deformable model

International Journal of Radiation Oncology, Biology, Physics
Ming ChaoL Xing

Abstract

To develop a regional narrow-band algorithm to auto-propagate the contour surface of a region of interest (ROI) from one phase to other phases of four-dimensional computed tomography (4D-CT). The ROI contours were manually delineated on a selected phase of 4D-CT. A narrow band encompassing the ROI boundary was created on the image and used as a compact representation of the ROI surface. A BSpline deformable registration was performed to map the band to other phases. A Mattes mutual information was used as the metric function, and the limited memory Broyden-Fletcher-Goldfarb-Shanno algorithm was used to optimize the function. After registration the deformation field was extracted and used to transform the manual contours to other phases. Bidirectional contour mapping was introduced to evaluate the proposed technique. The new algorithm was tested on synthetic images and applied to 4D-CT images of 4 thoracic patients and a head-and-neck Cone-beam CT case. Application of the algorithm to synthetic images and Cone-beam CT images indicates that an accuracy of 1.0 mm is achievable and that 4D-CT images show a spatial accuracy better than 1.5 mm for ROI mappings between adjacent phases, and 3 mm in opposite-phase mapping. Compared with...Continue Reading

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Mar 1, 2006·International Journal of Radiation Oncology, Biology, Physics·Eduard SchreibmannLei Xing
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Citations

Oct 14, 2011·Medical Physics·Yaoqin XieGuanglei Xiong
Dec 11, 2013·Computational and Mathematical Methods in Medicine·Rui ZhangYaoqin Xie
May 9, 2012·TheScientificWorldJournal·Qingsong ZhuYaoqin Xie
Apr 1, 2011·PET Clinics·Tim FoxEduard Schreibmann
Apr 8, 2011·International Journal of Radiation Oncology, Biology, Physics·Ming ChaoVaneerat Ratanatharathorn
Jun 24, 2009·International Journal of Radiation Oncology, Biology, Physics·Yaoqin XieLei Xing
Oct 27, 2009·Journal of Magnetic Resonance Imaging : JMRI·Sota OguroNobuhiko Hata
Sep 14, 2010·Wiley Interdisciplinary Reviews. Systems Biology and Medicine·Sanjoy K BhattacharyaColleen M Cebulla
Oct 21, 2010·Journal of Medical Imaging and Radiation Oncology·Rebecca HeightMorikatsu Wada
Sep 8, 2012·Journal of Applied Clinical Medical Physics·Eduard SchreibmannTim Fox
Jun 12, 2013·Technology in Cancer Research & Treatment·M PeroniG Baroni
Sep 10, 2015·Physics in Medicine and Biology·Dengwang LiLei Xing
Jul 17, 2012·Physics in Medicine and Biology·Guanglei XiongLei Xing
Aug 5, 2008·Physics in Medicine and Biology·Ming ChaoLei Xing

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