Fully automatic reconstruction of personalized 3D volumes of the proximal femur from 2D X-ray images

Yu, Weimin; Chu, Chengwen; Tannast, Moritz; Zheng, Guoyan (2016). Fully automatic reconstruction of personalized 3D volumes of the proximal femur from 2D X-ray images. International Journal of Computer Assisted Radiology and Surgery, 11(9), pp. 1673-1685. Springer 10.1007/s11548-016-1400-9

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PURPOSE: Accurate preoperative planning is crucial for the outcome of total hip arthroplasty. Recently, 2D pelvic X-ray radiographs have been replaced by 3D CT. However, CT suffers from relatively high radiation dosage and cost. An alternative is to reconstruct a 3D patient-specific volume data from 2D X-ray images. METHODS: In this paper, based on a fully automatic image segmentation algorithm, we propose a new control point-based 2D-3D registration approach for a deformable registration of a 3D volumetric template to a limited number of 2D calibrated X-ray images and show its application to personalized reconstruction of 3D volumes of the proximal femur. The 2D-3D registration is done with a hierarchical two-stage strategy: the scaled-rigid 2D-3D registration stage followed by a regularized deformable B-spline 2D-3D registration stage. In both stages, a set of control points with uniform spacing are placed over the domain of the 3D volumetric template first. The registration is then driven by computing updated positions of these control points with intensity-based 2D-2D image registrations of the input X-ray images with the associated digitally reconstructed radiographs, which allows computing the associated registration transformation at each stage. RESULTS: Evaluated on datasets of 44 patients, our method achieved an overall surface reconstruction accuracy of [Formula: see text] and an average Dice coefficient of [Formula: see text]. We further investigated the cortical bone region reconstruction accuracy, which is important for planning cementless total hip arthroplasty. An average cortical bone region Dice coefficient of [Formula: see text] and an inner cortical bone surface reconstruction accuracy of [Formula: see text] were found. CONCLUSIONS: In summary, we developed a new approach for reconstruction of 3D personalized volumes of the proximal femur from 2D X-ray images. Comprehensive experiments demonstrated the efficacy of the present approach.

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 > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Orthopaedic Surgery

Graduate School:

Graduate School for Cellular and Biomedical Sciences (GCB)

UniBE Contributor:

Yu, Weimin; Chu, Chengwen; Tannast, Moritz and Zheng, Guoyan

Subjects:

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

ISSN:

1861-6410

Publisher:

Springer

Language:

English

Submitter:

Guoyan Zheng

Date Deposited:

12 Apr 2017 16:33

Last Modified:

12 Apr 2017 16:33

Publisher DOI:

10.1007/s11548-016-1400-9

PubMed ID:

27038965

BORIS DOI:

10.7892/boris.82185

URI:

https://boris.unibe.ch/id/eprint/82185

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