Jackson D D
Med Phys. 1983 May-Jun;10(3):370-2. doi: 10.1118/1.595275.
A method for locating radioactive seeds in interstitial implants has been developed that requires three radiographic views. Spatial coordinates for the seeds are computed from the randomly digitized seed images on each of three radiographs, and information about the tube and film placement for each of the radiographs. Further, the ability to accurately (greater than 98% of the seeds within +/- 2.5 mm) locate the seeds does not require the use of a specialized radiographic technique; the radiographs need only represent three different views of the implant. Also discussed is the seed image matching technique that enables ambiguous seed matches to be resolved.
已经开发出一种用于在组织间植入物中定位放射性种子源的方法，该方法需要三张射线照片。种子源的空间坐标是根据三张射线照片上随机数字化的种子源图像以及每张射线照片的管和胶片放置信息计算得出的。此外，准确（超过98%的种子源在±2.5毫米范围内）定位种子源的能力并不需要使用专门的射线照相技术；射线照片只需要呈现植入物的三个不同视图。还讨论了能够解决种子源匹配模糊问题的种子源图像匹配技术。
