Chacko S, Singh M
Biomedical Engineering Division, Indian Institute of Technology, Madras, India.
IEEE Trans Biomed Eng. 2000 Jan;47(1):131-5. doi: 10.1109/10.817628.
A laser transillumination tomographic system, using red and near infrared lasers, to obtain cross-sectional images of human breast phantoms and human hand is proposed. The scanning assembly is consisting of upward, downward, rotational and pitch movements. The phantoms, made of paraffin wax, agar gel, and milk placed in a glass model, are embedded with abnormalities like blood, water, solid objects, and tissues. By illuminating the phantoms at various heights by either red or infrared laser the projection data are collected. Based on 64 projections the tomogram of each section is constructed. By volume visualization procedure applied to the tomograms the objects of varying composition embedded within the phantoms are detected and their size, shape, and location depth are determined. The cross-sectional image of a human hand obtained by this procedure further shows the possibility of application of this technique for imaging of organs.
提出了一种激光透照层析成像系统，该系统使用红色和近红外激光来获取人体乳房模型和人手的横截面图像。扫描组件由向上、向下、旋转和俯仰运动组成。由石蜡、琼脂凝胶和牛奶制成并放置在玻璃模型中的模型，嵌入了血液、水、固体物体和组织等异常物质。通过用红色或红外激光在不同高度照射模型来收集投影数据。基于64个投影构建每个截面的断层图像。通过应用于断层图像的体积可视化程序，检测模型中嵌入的不同成分的物体，并确定它们的大小、形状和位置深度。通过该程序获得的人手横截面图像进一步显示了该技术在器官成像中的应用可能性。
