Freehand three-dimensional ultrasound system for assessment of scoliosis
Background/Objective: Standing radiograph with Cobb's method is routinely used to diagnose scoliosis, a medical condition defined as a lateral spine curvature > 10° with concordant vertebral rotation. However, radiation hazard and two-dimensional (2-D) viewing of 3-D anatomy restrict the app...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2015-07-01
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| Series: | Journal of Orthopaedic Translation |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214031X1500039X |
| _version_ | 1828528790698983424 |
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| author | Chung-Wai James Cheung Guang-Quan Zhou Siu-Yin Law Ka-Lee Lai Wei-Wei Jiang Yong-Ping Zheng |
| author_facet | Chung-Wai James Cheung Guang-Quan Zhou Siu-Yin Law Ka-Lee Lai Wei-Wei Jiang Yong-Ping Zheng |
| author_sort | Chung-Wai James Cheung |
| collection | DOAJ |
| description | Background/Objective: Standing radiograph with Cobb's method is routinely used to diagnose scoliosis, a medical condition defined as a lateral spine curvature > 10° with concordant vertebral rotation. However, radiation hazard and two-dimensional (2-D) viewing of 3-D anatomy restrict the application of radiograph in scoliosis examination.
Methods: In this study, a freehand 3-D ultrasound system was developed for the radiation-free assessment of scoliosis. Bony landmarks of the spine were manually extracted from a series of ultrasound images with their spatial information recorded to form a 3-D spine model for measuring its curvature. To validate its feasibility, in vivo measurements were conducted in 28 volunteers (age: 28.0 ± 13.0 years, 9 males and 19 females). A significant linear correlation (R2 = 0.86; p < 0.001) was found between the spine curvatures as measured by Cobb's method and the 3-D ultrasound imaging with transverse process and superior articular process as landmarks. The intra- and interobserver tests indicated that the proposed method is repeatable.
Results: The 3-D ultrasound method using bony landmarks tended to underestimate the deformity, and a proper scaling is required. Nevertheless, this study demonstrated the feasibility of the freehand 3-D ultrasound system to assess scoliosis in the standing posture with the proposed methods and 3-D spine profile.
Conclusion: Further studies are required to understand the variations that exist between the ultrasound and radiograph results with a larger number of volunteers, and to demonstrate its potential clinical applications for monitoring of scoliosis patients. Through further clinical trials and development, the reported 3-D ultrasound imaging system can potentially be used for scoliosis mass screening and frequent monitoring of progress and treatment outcome because of its radiation-free and easy accessibility feature. |
| first_indexed | 2024-12-11T21:57:49Z |
| format | Article |
| id | doaj.art-ea2469bf1a3d46619d0c53181de6354c |
| institution | Directory Open Access Journal |
| issn | 2214-031X |
| language | English |
| last_indexed | 2024-12-11T21:57:49Z |
| publishDate | 2015-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Orthopaedic Translation |
| spelling | doaj.art-ea2469bf1a3d46619d0c53181de6354c2022-12-22T00:49:15ZengElsevierJournal of Orthopaedic Translation2214-031X2015-07-013312313310.1016/j.jot.2015.06.001Freehand three-dimensional ultrasound system for assessment of scoliosisChung-Wai James CheungGuang-Quan ZhouSiu-Yin LawKa-Lee LaiWei-Wei JiangYong-Ping ZhengBackground/Objective: Standing radiograph with Cobb's method is routinely used to diagnose scoliosis, a medical condition defined as a lateral spine curvature > 10° with concordant vertebral rotation. However, radiation hazard and two-dimensional (2-D) viewing of 3-D anatomy restrict the application of radiograph in scoliosis examination. Methods: In this study, a freehand 3-D ultrasound system was developed for the radiation-free assessment of scoliosis. Bony landmarks of the spine were manually extracted from a series of ultrasound images with their spatial information recorded to form a 3-D spine model for measuring its curvature. To validate its feasibility, in vivo measurements were conducted in 28 volunteers (age: 28.0 ± 13.0 years, 9 males and 19 females). A significant linear correlation (R2 = 0.86; p < 0.001) was found between the spine curvatures as measured by Cobb's method and the 3-D ultrasound imaging with transverse process and superior articular process as landmarks. The intra- and interobserver tests indicated that the proposed method is repeatable. Results: The 3-D ultrasound method using bony landmarks tended to underestimate the deformity, and a proper scaling is required. Nevertheless, this study demonstrated the feasibility of the freehand 3-D ultrasound system to assess scoliosis in the standing posture with the proposed methods and 3-D spine profile. Conclusion: Further studies are required to understand the variations that exist between the ultrasound and radiograph results with a larger number of volunteers, and to demonstrate its potential clinical applications for monitoring of scoliosis patients. Through further clinical trials and development, the reported 3-D ultrasound imaging system can potentially be used for scoliosis mass screening and frequent monitoring of progress and treatment outcome because of its radiation-free and easy accessibility feature.http://www.sciencedirect.com/science/article/pii/S2214031X1500039XCobb anglefreehand 3-D ultrasoundscoliosisspine deformity |
| spellingShingle | Chung-Wai James Cheung Guang-Quan Zhou Siu-Yin Law Ka-Lee Lai Wei-Wei Jiang Yong-Ping Zheng Freehand three-dimensional ultrasound system for assessment of scoliosis Journal of Orthopaedic Translation Cobb angle freehand 3-D ultrasound scoliosis spine deformity |
| title | Freehand three-dimensional ultrasound system for assessment of scoliosis |
| title_full | Freehand three-dimensional ultrasound system for assessment of scoliosis |
| title_fullStr | Freehand three-dimensional ultrasound system for assessment of scoliosis |
| title_full_unstemmed | Freehand three-dimensional ultrasound system for assessment of scoliosis |
| title_short | Freehand three-dimensional ultrasound system for assessment of scoliosis |
| title_sort | freehand three dimensional ultrasound system for assessment of scoliosis |
| topic | Cobb angle freehand 3-D ultrasound scoliosis spine deformity |
| url | http://www.sciencedirect.com/science/article/pii/S2214031X1500039X |
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