Poncet P, Delorme S, Ronsky J L, Dansereau J, Clynch G, Harder J, Dewar R D, Labelle H, Gu P H, Zernicke R F
Department of Surgery, University of Calgary, 3330 Hospital Drive, N.W., Calgary, Alberta, T2N 4N1, Canada.
Comput Methods Biomech Biomed Engin. 2000;4(1):59-75. doi: 10.1080/10255840008907998.
Assessments of scoliosis are routinely done by means of clinical examination and full spinal x-rays. Multiple exposure to ionization radiation, however, can be hazardous to the child and is costly. Here, we explain the use of a noninvasive imaging technique, based on laser optical scanning, for quantifying the three-dimensional (3D) trunk surface topography that can be used to estimate parameters of 3D deformity of the spine. The laser optical scanning system consisted of four BIRIS laser cameras mounted on a ring moving along a vertical axis, producing a topographical mapping of the entire torso. In conjunction with the laser scans, an accurate 3D reconstruction of the spine and rib cage were developed from the digitized x-ray images. Results from 14 scoliotic patients are reported. The digitized surfaces provided the foundation data to start studying concordance of trunk surface asymmetry and spinal shape in idiopathic scoliosis.
脊柱侧弯的评估通常通过临床检查和全脊柱X光片来进行。然而，多次暴露于电离辐射对儿童可能有害且成本高昂。在此，我们解释一种基于激光光学扫描的非侵入性成像技术的应用，该技术用于量化三维（3D）躯干表面地形，可用于估计脊柱三维畸形的参数。激光光学扫描系统由四个安装在沿垂直轴移动的环上的BIRIS激光相机组成，可生成整个躯干的地形图。结合激光扫描，从数字化X光图像中开发出脊柱和胸廓的精确三维重建。报告了14例脊柱侧弯患者的结果。数字化表面提供了基础数据，以开始研究特发性脊柱侧弯中躯干表面不对称与脊柱形状的一致性。
