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Content Provider | IEEE Xplore Digital Library |
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Author | Suh, J.W. Kwon, O.-K. Scheinost, D. Sinusas, A.J. Cline, G.W. Papademetris, X. |
Copyright Year | 2011 |
Description | Author affiliation: Dept. of Diagnostic Radiology, Biomedical Engineering, Yale University, USA (Scheinost, D.; Papademetris, X.) || Department of Radiology, University of Pennsylvania, USA (Suh, J.W.; Kwon, O.-K.) || Dept. of Endocrinology, Yale University, USA (Cline, G.W.) || Dept. Internal Medicine, Yale University, USA (Sinusas, A.J.) |
Abstract | We present a new registration method for whole-body rat computed tomography (CT) image and positron emission tomography (PET) images using a weighted demons algorithm. The CT and PET images are acquired in separate scanners at different times and the inherent differences in the imaging protocols produced significant nonrigid changes between the two acquisitions in addition to heterogeneous image characteristics. In this situation, we utilized both the transmission-PET and the emission-PET images in the deformable registration process emphasizing particular regions of the moving transmission-PET image using the emission-PET image. We validated our results with nine rat image sets using M-Hausdorff distance similarity measure. We demonstrate improved performance compared to standard methods such as Demons and normalized mutual information-based non-rigid FFD registration. |
Starting Page | 1223 |
Ending Page | 1226 |
File Size | 382038 |
Page Count | 4 |
File Format | |
ISBN | 9781424441273 |
ISSN | 19457928 |
DOI | 10.1109/ISBI.2011.5872622 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2011-03-30 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Computed tomography Positron emission tomography Image edge detection Transforms Liver Pixel Whole body PET-CT image fusion |
Content Type | Text |
Resource Type | Article |
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