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Hough transform-based approach for estimating 3D rotation angles of vertebrae from biplanar radiographs using GPU-acceleration

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收录情况： ◇ SCIE

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机构： [1]Department of Electronic Engineering, Yunnan University, Kunming, China [2]Department of Radiology, The First People’s Hospital of Yunnan Province, Kunming, China

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关键词： vertebral rotation angle biplanar radiography contour matching scoliosis Hough transform GPU-acceleration

摘要：

For scoliosis assessment, a system was developed to estimate the three-dimensional (3D) rotation angles of vertebrae from biplanar radiographs. The proposed approach was based on the generalized Hough transform (GHT) technique to match the projected contours of the standard 3D primitive with vertebral edges detected in biplanar radiographs. A deformation tolerant matching strategy was proposed to extend the GHT for an inexact contour matching. The system was implemented on a graphics processing unit (GPU). Seventeen dry vertebral specimens were used to evaluate accuracy. Precision was tested by three operators on 181 vertebrae from radiographs of 15 patients. With GPU computing, the average estimation time was 10 s for a vertebra. Results showed that the 3D estimation error was less than 2.5 degrees with the mean value of 1.6 degrees. The intraoperator variability was within 1.6 degrees and the interoperator variability was within 2.2 degrees. These promising results indicate that the proposed system can help orthopedic surgeons measure the 3D vertebral rotation angles from two-dimensional radiographs for better assessment of scoliosis. (c) 2013 Wiley Periodicals, Inc. Int J Imaging Syst Technol, 23, 272-279, 2013

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出版当年[2013]版：

大类 | 4 区工程技术

小类 | 4 区工程：电子与电气 4 区成像科学与照相技术 4 区光学

最新[2023]版：

大类 | 4 区计算机科学

小类 | 4 区工程：电子与电气 4 区成像科学与照相技术 4 区光学

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出版当年[2012]版：

Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Q3 IMAGING SCIENCE & PHOTOGRAPHIC TECHNOLOGY Q4 OPTICS

最新[2023]版：

Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Q2 IMAGING SCIENCE & PHOTOGRAPHIC TECHNOLOGY Q2 OPTICS

影响因子： 3 最新[2023版] 2.9 最新五年平均 0.639 出版当年[2012版] 0.739 出版当年五年平均 0.779 出版前一年[2011版] 0.768 出版后一年[2013版]

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第一作者机构： [1]Department of Electronic Engineering, Yunnan University, Kunming, China

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