Freehand three-dimensional ultrasound system for assessment of scoliosis

Autor: Chung-Wai James Cheung, Guang-Quan Zhou, Siu-Yin Law, Ka-Lee Lai, Wei-Wei Jiang, Yong-Ping Zheng
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Journal of Orthopaedic Translation, Vol 3, Iss 3, Pp 123-133 (2015)
Druh dokumentu: article
ISSN: 2214-031X
DOI: 10.1016/j.jot.2015.06.001
Popis: 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
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