NDLI: Estimating vertebral orientation from biplanar radiography based on contour matching

Content Provider	IEEE Xplore Digital Library
Author	Junhua Zhang Jun Wu Xinling Shi Yufeng Zhang
Copyright Year	2012
Description	Author affiliation: Yunnan University, China (Junhua Zhang; Jun Wu; Xinling Shi; Yufeng Zhang)
Abstract	This paper proposed an approach for estimating 3D orientation of a vertebra given its 3D model and 2D biplanar radiographs. The estimation was based on the Hough transform technique to match the projections of the standard 3D primitive with the vertebral contours in biplanar radiographs, where the projected contours were generated from the 3D model by sampling the viewing sphere with a hierarchical scheme. The average computing time was 9.5 minutes. Seventeen vertebral models were used to evaluate the accuracy of the proposed method. Results showed that the mean of the estimation errors was 3.9°. It indicates that this approach may help orthopedic surgeons measure the vertebral orientation from 2D radiographs for better assessment of scoliosis.
Starting Page	1
Ending Page	5
File Size	336487
Page Count	5
File Format	PDF
ISBN	9781467320498
ISSN	10637125
e-ISBN	9781467320511
DOI	10.1109/CBMS.2012.6266309
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-20
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radiography Vectors Image edge detection Computational modeling Image reconstruction Estimation Solid modeling Hough Transform Vertebral Orientation Scoliosis Biplanar Radiography Contour Matching
Content Type	Text
Resource Type	Article
Subject	Radiology, Nuclear Medicine and Imaging Computer Science Applications

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