Accuracy evaluation for 3D bone reconstruction based on medical 3D reconstruction software
10.3760/cma.j.issn.1671-7600.2019.10.013
- VernacularTitle: 一种3D打印重构软件的骨骼重建精度评价方法的研究
- Author:
Yuanjing XU
1
,
2
;
Zhiyuan LIU
3
;
Yihao LIU
3
;
Zezheng YANG
3
;
Keming WAN
4
;
Fei LIU
5
;
Jinwu WANG
1
,
2
;
Kerong DAI
1
,
2
Author Information
1. Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, The Ninth People's Hospital of Shanghai, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
2. Shanghai Jiao Tong University School of Biomedical Engineering, Shanghai 200030, China
3. Department of Orthopaedic Surgery, The Ninth People's Hospital of Shanghai, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
4. Shanghai Jiao Tong University School of Biomedical Engineering, Shanghai 200030, China
5. Xi'an Jiao Tong University Suzhou Academy, Suzhou 215123, Jiangsu, China
- Publication Type:Journal Article
- Keywords:
Skeleton;
Software;
Imaging, three-dimensional;
Medical images;
Accuracy
- From:
Chinese Journal of Orthopaedic Trauma
2019;21(10):894-900
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the feasibility of an accuracy evaluation method for 3D reconstructed bone model based on 3D reconstruction software Arigin3D Pro.
Methods:Pig femurs were used as solid models which were scanned by CT and MRI respectively. The scan data were imported into software Arigin3D Pro for 3D model reconstruction by 3 operators with different reconstruction experience (≤1 year, 2 to 3 years, and ≥4 years, respectively). Each operator reconstructed the femurs 3 times and in each reconstruction measured the diameter of the femoral head, the length of the femur and the width of the knee joint at the distal end of the femur 3 times respectively using software Geomagic Wrap. The above parameters of the solid models were measured using a vernier caliper. The parameter values of reconstructed models and solid models were compared and the differences were analyzed.
Results:The measurements by Geomagic Wrap showed deviations between the CT and MRI reconstruction models and the solid models, and the maximum deviation percentages were 1.47% and 1.08%, respectively. The percentages of intra-operater difference ranged from 0.29% to 1.53%; the 3D models reconstructed by operators with different reconstruction experience were not identical.
Conclusions:It is a feasible accuracy evaluation method to compare key parameters between the 3D bone model reconstructed by software Arigin3D Pro and the real animal bone. The deviations of 3D reconstructed bone model based on CT and MRI images are acceptable. The accuracy of 3D bone construction is related to the difference in operators.
