A video digitizer for analysis of trunk deformity in scoliosis |
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| Affiliation: | 1. Applications Engineering, Alberta Microelectronic Centre Canada;2. Department of Electrical Engineering, University of Alberta Canada;3. Orthopaedic Biomechanics, Glenrose Rehabilitation Hospital, Edmonton, Canada;12. Department of Civil Engineering, University of Alberta Canada;1. Rosalind Franklin University of Medicine and Science, 3333 Green Bay Rd, North Chicago, IL 60064, USA;2. Cincinnati Children''s Hospital, 3333 Burnet Ave, Cincinnati, OH 45229, USA;3. Scoliosis Associates, 820 2nd Ave, New York, NY 10017, USA;4. Children''s Hospital of Philadelphia, Wood Center, Second Floor, 34th and Civic Center Blvd. Philadelphia, PA 19104, USA;5. University of Aachen, Pauwelsstraße 30, Aachen, D-52074, Germany;6. Arkansas Children''s Hospital, 1 Children''s Way, Little Rock, AR 72202, USA;7. Washington University Medical Center, 4901 Forest Park Ave, St. Louis, MO 63108, USA;8. Columbia University Medical Center, Allen Hospital, 5141 Broadway, 3 Field West – 029, New York, NY 10034, USA;9. Institute for Spine and Scoliosis, 3100 Princeton Pike, Lawrenceville, NJ 08648, USA;1. Plastic Surgery Department, Queen Victoria Hospital, Holtye Rd, East Grinstead, RH19 3DZ, UK;2. Year 12, Brighton College, Eastern Rd, Brighton, BN2 0AL, UK;1. School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, China;2. Research Institute of Sun Yat-Sen University in Shenzhen, Shenzhen 518057, China;1. Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta T6G2V4, Canada;2. Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta T6G2G8, Canada;3. Department of Physical Therapy, Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta T6G2G4, Canada;1. School of Mechatronic Engineering, Southwest Petroleum University, Chengdu 610500, China;2. PetroChina Southwest Oil and Gas Field Company, Chengdu 610051, China;3. Engineer Technology Research Institute, BHDC, Tianjin 300280, China;1. Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok 10330, Thailand;2. Center of Excellence in Process and Energy Systems Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand;3. High-Performance Computing Unit (CECC-HCU), Centre of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand |
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| Abstract: | Scoliosis is a deformity characterized by lateral curvature of the spine and accompanied by axial rotation of the vertebrae; it often causes varying degrees of trunk deformity. Research has indicated that topographic techniques can be used to describe the disorder and monitor its progression. A video image acquisition system has been designed which reduces the time required to quantify topographic details of the trunk and aids in the diagnosis, monitoring and research of scoliosis. This system integrates the capability of large, expensive grey-scale image acquisition equipment into a small, low-cost diagnostic imaging tool using current technologies and design techniques. The video digitizer accepts a standard NTSC monochromatic video signal as input and the unit is connected to a computer via an EEE-488 bus from which the ditigizer is controlled. The digitizer samples the video signal in real time using a high-speed flash converter controlled by an application-specific integrated circuit; the digital samples are stored in memory until the host computer requests that the information be transferred. |
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