3D Shape Reconstruction of Lumbar Vertebra From Two X-ray Images and a CT Model

doi:10.1109/JAS.2019.1911528

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	3D Shape Reconstruction of Lumbar Vertebra From Two X-ray Images and a CT Model
	Longwei Fang; Zuowei Wang; Zhiqiang Chen; Fengzeng Jian; Shuo Li; Huiguang He
刊名	IEEE/CAA Journal of Automatica Sinica
	2020
卷号	7 期号:4 页码:1124-1133
关键词	2D/2D registration 2D/3D registration 3D reconstruction vertebra model X-ray image
ISSN号	2329-9266
DOI	10.1109/JAS.2019.1911528
英文摘要	Structure reconstruction of 3D anatomy from bi-planar X-ray images is a challenging topic. Traditionally, the elastic-model-based method was used to reconstruct 3D shapes by deforming the control points on the elastic mesh. However, the reconstructed shape is not smooth because the limited control points are only distributed on the edge of the elastic mesh. Alternatively, statistical-model-based methods, which include shape-model-based and intensity-model-based methods, are introduced due to their smooth reconstruction. However, both suffer from limitations. With the shape-model-based method, only the boundary profile is considered, leading to the loss of valid intensity information. For the intensity-based-method, the computation speed is slow because it needs to calculate the intensity distribution in each iteration. To address these issues, we propose a new reconstruction method using X-ray images and a specimen’s CT data. Specifically, the CT data provides both the shape mesh and the intensity model of the vertebra. Intensity model is used to generate the deformation field from X-ray images, while the shape model is used to generate the patient specific model by applying the calculated deformation field. Experiments on the public synthetic dataset and clinical dataset show that the average reconstruction errors are 1.1 mm and 1.2 mm, separately. The average reconstruction time is 3 minutes.
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/43019]
专题	自动化研究所_学术期刊_IEEE/CAA Journal of Automatica Sinica
推荐引用方式 GB/T 7714	Longwei Fang,Zuowei Wang,Zhiqiang Chen,et al. 3D Shape Reconstruction of Lumbar Vertebra From Two X-ray Images and a CT Model[J]. IEEE/CAA Journal of Automatica Sinica,2020,7(4):1124-1133.
APA	Longwei Fang,Zuowei Wang,Zhiqiang Chen,Fengzeng Jian,Shuo Li,&Huiguang He.(2020).3D Shape Reconstruction of Lumbar Vertebra From Two X-ray Images and a CT Model.IEEE/CAA Journal of Automatica Sinica,7(4),1124-1133.
MLA	Longwei Fang,et al."3D Shape Reconstruction of Lumbar Vertebra From Two X-ray Images and a CT Model".IEEE/CAA Journal of Automatica Sinica 7.4(2020):1124-1133.