| Statistically deformable 2D/3D registration for estimating post-operative cup orientation from a single standard AP X-ray radiograph. | |
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MedLine Citation:
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PMID: 20556516 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The widely used procedure of estimating post-operative cup orientation based on a single standard AP X-ray radiograph is known inaccurate, largely due to the wide variability in individual pelvic orientation relative to X-ray plate. CT-based 2D/3D rigid image registration methods have been developed to measure post-operative cup orientation. Although encouraging results have been reported, their extensive usage in clinical routine is still limited. This may be explained by their requirement of having a CT study of the patient at some point during treatment, which is not available for vast majority of Total Hip Arthroplasty procedures performed nowadays. To address this limitation, this article proposes a statistically deformable 2D/3D registration approach for estimating post-operative cup orientation. No CT study of the patient is required any more. Compared to ground truths established from post-operative CT images, the cup orientations measured by the present technique in a cadaver experiment showed differences of 1.7 +/- 1.4 degrees for anteversion and difference of 1.5 +/- 1.5 degrees for inclination. When the present technique was evaluated on patients' datasets, differences of 2.2 +/- 1.3 degrees and differences of 2.0 +/- 0.8 degrees were found for the anteversion and the inclination, respectively. The experimental results, though still preliminary, demonstrated the efficacy of the present approach. |
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Authors:
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Guoyan Zheng |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-06-16 |
Journal Detail:
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Title: Annals of biomedical engineering Volume: 38 ISSN: 1521-6047 ISO Abbreviation: Ann Biomed Eng Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2010-08-03 Completed Date: 2010-11-23 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0361512 Medline TA: Ann Biomed Eng Country: United States |
Other Details:
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Languages: eng Pagination: 2910-27 Citation Subset: IM |
Affiliation:
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Institute for Surgical Technology and Biomechanics, University of Bern, Switzerland. guoyan.zheng@ieee.org |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acetabulum
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radiography* Arthroplasty, Replacement, Hip* Female Hip Prosthesis Humans Imaging, Three-Dimensional / methods* Male Radiographic Image Enhancement / methods* Radiographic Image Interpretation, Computer-Assisted / methods* Retrospective Studies Tomography, X-Ray Computed / methods* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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