An integrated system for 3D hip joint reconstruction from 2D X-rays: a preliminary validation study

Schumann, Steffen; Liu, Li; Tannast, Moritz; Bergman, Manfred Max; Nolte, Lutz-P.; Zheng, Guoyan (2013). An integrated system for 3D hip joint reconstruction from 2D X-rays: a preliminary validation study. Annals of biomedical engineering, 41(10), pp. 2077-2087. Springer US; http://www.springer-ny.com 10.1007/s10439-013-0822-6

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The acquisition of conventional X-ray radiographs remains the standard imaging procedure for the diagnosis of hip-related problems. However, recent studies demonstrated the benefit of using three-dimensional (3D) surface models in the clinical routine. 3D surface models of the hip joint are useful for assessing the dynamic range of motion in order to identify possible pathologies such as femoroacetabular impingement. In this paper, we present an integrated system which consists of X-ray radiograph calibration and subsequent 2D/3D hip joint reconstruction for diagnosis and planning of hip-related problems. A mobile phantom with two different sizes of fiducials was developed for X-ray radiograph calibration, which can be robustly detected within the images. On the basis of the calibrated X-ray images, a 3D reconstruction method of the acetabulum was developed and applied together with existing techniques to reconstruct a 3D surface model of the hip joint. X-ray radiographs of dry cadaveric hip bones and one cadaveric specimen with soft tissue were used to prove the robustness of the developed fiducial detection algorithm. Computed tomography scans of the cadaveric bones were used to validate the accuracy of the integrated system. The fiducial detection sensitivity was in the same range for both sizes of fiducials. While the detection sensitivity was 97.96% for the large fiducials, it was 97.62% for the small fiducials. The acetabulum and the proximal femur were reconstructed with a mean surface distance error of 1.06 and 1.01 mm, respectively. The results for fiducial detection sensitivity and 3D surface reconstruction demonstrated the capability of the integrated system for 3D hip joint reconstruction from 2D calibrated X-ray radiographs.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > Institute for Surgical Technology & Biomechanics ISTB [discontinued]
04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Anatomy
04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Orthopaedic Surgery

UniBE Contributor:

Schumann, Steffen; Liu, Li; Tannast, Moritz; Bergman, Manfred Max; Nolte, Lutz-Peter and Zheng, Guoyan

Subjects:

500 Science > 570 Life sciences; biology
600 Technology > 610 Medicine & health

ISSN:

0090-6964

Publisher:

Springer US; http://www.springer-ny.com

Language:

English

Submitter:

Stephanie Schmutz

Date Deposited:

08 Apr 2014 10:38

Last Modified:

23 Oct 2019 19:51

Publisher DOI:

10.1007/s10439-013-0822-6

PubMed ID:

23670657

BORIS DOI:

10.7892/boris.42819

URI:

https://boris.unibe.ch/id/eprint/42819

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