15 March 2011 A decision support scheme for vertebral geometry on body CT scans
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Proceedings Volume 7962, Medical Imaging 2011: Image Processing; 796245 (2011) https://doi.org/10.1117/12.877516
Event: SPIE Medical Imaging, 2011, Lake Buena Vista (Orlando), Florida, United States
Abstract
For gaining a better understanding of bone quality, a great deal of attention has been paid to vertebral geometry in anatomy. The aim of this study was to design a decision support scheme for vertebral geometries. The proposed scheme consists of four parts: (1) automated extraction of bone, (2) generation of median plane image of spine, (3) detection of vertebrae, (4) quantification of vertebral body width, depth, cross-sectional area (CSA), and trabecular bone mineral density (BMD). The proposed scheme was applied to 10 CT cases and compared with manual tracking performed by an anatomy expert. Mean differences in the width, depth, CSA, and trabecular BMD were 3.1 mm, 1.4 mm, 88.7 mm2, and 7.3 mg/cm3, respectively. We found moderate or high correlations in vertebral geometry between our scheme and manual tracking (r > 0.72). In contrast, measurements obtained by using our scheme were slightly smaller than those acquired from manual tracking. However, the outputs of the proposed scheme in most CT cases were regarded to be appropriate on the basis of the subjective assessment of an anatomy expert. Therefore, if the appropriate outputs from the proposed scheme are selected in advance by an anatomy expert, the results can potentially be used for an analysis of vertebral body geometries.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tatsuro Hayashi, Tatsuro Hayashi, Huayue Chen, Huayue Chen, Kei Miyamoto, Kei Miyamoto, Xiangrong Zhou, Xiangrong Zhou, Takeshi Hara, Takeshi Hara, Ryujiro Yokoyama, Ryujiro Yokoyama, Masayuki Kanematsu, Masayuki Kanematsu, Hiroaki Hoshi, Hiroaki Hoshi, Hiroshi Fujita, Hiroshi Fujita, } "A decision support scheme for vertebral geometry on body CT scans", Proc. SPIE 7962, Medical Imaging 2011: Image Processing, 796245 (15 March 2011); doi: 10.1117/12.877516; https://doi.org/10.1117/12.877516
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