He P, Xue K, Chen Q, Murka P, Schall S
Faculty of Biomedical and Human Factors Engineering, Wright State University, Dayton, OH 45435 USA.
IEEE Trans Rehabil Eng. 1996 Jun;4(2):114-9. doi: 10.1109/86.506408.
A PC-based ultrasound data acquisition system has been developed which uses compound scanning techniques to image a residual limb in a water tank. From the received ultrasonic eco data, the system produces cross-sectional images and reconstructs a three-dimensional (3-D) model of the limb. A commercial software for computer-aided prosthetic socket design was modified so that it can display both the external shape and cross-sectional image of the limb and allow the prosthetist to perform socket design with the help of a visualization of the limb's internal structure. The image resolution and measurement accuracy of the system were tested using a wire phantom and a contrast tissue mimicking phantom, respectively. Preliminary results from amputee patients are presented and the sources of measurement error are discussed.
已经开发出一种基于个人计算机的超声数据采集系统，该系统使用复合扫描技术对水箱中的残肢进行成像。该系统从接收到的超声回波数据中生成横截面图像，并重建肢体的三维（3-D）模型。对一款用于计算机辅助假肢接受腔设计的商业软件进行了修改，使其能够显示肢体的外部形状和横截面图像，并允许假肢师借助肢体内部结构的可视化进行接受腔设计。分别使用线体模和对比组织模拟体模对系统的图像分辨率和测量精度进行了测试。给出了截肢患者的初步结果，并讨论了测量误差的来源。
