داده‌برداری سه‌بعدی از سطح پشت به منظور کمی‌سازی انحنای مهره‌ها بدون نیاز به مارکرگذاری

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشکده مهندسی مکانیک، دانشگاه یزد

2 دانشکده مهندسی مکانیک، دانشگاه یزد، یزد، ایران

3 هسته علمی سامانه های پشتیبان در توسعه سلامت، دانشگاه یزد

چکیده

داده‌برداری اشعه‌ی ایکس اگرچه روش دقیقی برای سنجش صفحه‌ای انحناهای ستون مهره است، اما تشعشع دریافتی زیان‌آور و محدود کننده دفعات داده‌برداری است. هدف از این مطالعهمعرفی روشی غیر تهاجمی مبتنی بر داده‌برداری سطحی برای این منظور است. در این روش از دوربین‌های عمق‌سنج مادون قرمز برای تولید ابر نقاط سه‌بعدی از سطح پشت بیمار استفاده می‌شود. برای تحلیل نقشه‌ی توپوگرافی بدست‌آمده از سطح پشت، ابتدا موقعیت لندمارک‌های آناتومیکی مشخص می‌شود؛ سپس موقعیت مرکز مهره‌ها تخمین زده شده و انحنای ستون مهره‌ها به روش زاویه‌ی کوب محاسبه می‌شود. مرور مطالعات مشابه گذشته و نتایج مطالعه‌ی موردی، قابلیت تخمین انحنای ستون مهره‌ها را از نقشه‌ی توپوگرافی پشت نشان می‌دهد. بر این اساس می‌توان گفت که استفاده از روش مذکور با توجه به داشتن مزیت‌هایی مانند غیرتهاجمی‌بودن، ارزان و قابل حمل‌بودن و نتایج قابل قبول می‌تواند در کلینیک و مراکز ارتوپدی فنی جهت پایش و غربالگری بیماران اسکولیوز، و نیز پایش مستمر و ارزیابی روند بهبود در طول دوره درمان به‌کار رود.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Three-dimensional surface capture from the back anatomy to quantify three-dimensional vertebral column curvatures without using anatomical markers

نویسندگان [English]

  • AmirHossein Tavari 1
  • Mohammad Hadi Honarvar 2
  • Mostafa Hajlotfalian 3
1 Mechanical Engineering Dpt., Yazd University
2 Mechanical Engineering Department, Yazd university, Yazd, Iran
3 Center of Excellence for Support Systems in Health Development, Yazd University
چکیده [English]

Although X-ray imaging is a precise method for measuring vertebral curvature, the radiation dose that patient receives may be detrimental for the body. The purpose of this study is to introduce a non-invasive method based on surface data acquisition to determine vertebral curvatures in three-dimensional space. In this method, infrared depth-sensing cameras are used to generate a 3D point cloud from the patient's back surface. To analyze the topographic map obtained from the back surface, first of all, the anatomical landmarks are determined. These landmarks are necessary for transferring the point cloud data into the frontal plane and make the results free of small setup errors of the sensor. Then, the central position of each vertebra is estimated and the vertebral curvatures are calculated by Cobb's angle method. A review of similar past studies and our case study results demonstrate that estimation of vertebral curvatures from back topographic map is possible. Accordingly, can be said, this non-invasive, inexpensive and portable method with acceptable results can be used in clinics and orthopedic centers for monitoring and screening of scoliosis patients.

کلیدواژه‌ها [English]

  • Surface Data Acquisition
  • Point Cloud
  • Vertebral Curvatures
  • Scoliosis
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