کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
504117 864270 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cortical shell unwrapping for vertebral body abnormality detection on computed tomography
ترجمه فارسی عنوان
باز کردن پوسته قورباغه برای تشخیص غیرطبیعی بدن بر روی توموگرافی کامپیوتری
کلمات کلیدی
تشخیص کامپیوتری، تصویربرداری ستون فقرات محاسبه شده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی

The vertebral body is the main axial load-bearing structure of the spinal vertebra. Assessment of acute injury and chronic deformity of the vertebral body is difficult to assess accurately and quantitatively by simple visual inspection. We propose a cortical shell unwrapping method to examine the vertebral body for injury such as fractures and degenerative osteophytes. The spine is first segmented and partitioned into vertebrae. Then the cortical shell of the vertebral body is extracted using deformable dual-surface models. The cortical shell is then unwrapped onto a 2D map and the complex 3D detection problem is effectively converted to a pattern recognition problem on a 2D plane. Characteristic features adapted for different applications are computed and sent to a committee of support vector machines for classification. The system was evaluated on two applications, one for fracture detection on trauma CT datasets and the other on degenerative osteophyte assessment on sodium fluoride PET/CT. The fracture CAD achieved 93.6% sensitivity at 3.2 false positive per patient and the degenerative osteophyte CAD achieved 82% sensitivity at 4.7 false positive per patient.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computerized Medical Imaging and Graphics - Volume 38, Issue 7, October 2014, Pages 628–638
نویسندگان
, , , ,