Furukawa Akira
National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
Radiat Prot Dosimetry. 2016 Dec;172(1-3):238-243. doi: 10.1093/rpd/ncw152. Epub 2016 Jun 29.
The most popular and 'gold standard' phenomenon in Biological dosimetry is the appearance of dicentric chromosomes in metaphase in white blood cells. The metaphase finder is a tool for biological dosimetry that finds metaphase cells on slide glasses. The author and a software company were using new special software that was faster than conventional systems. A Nikon Eclipse Ni-E microscope with motorised X-Y stage, 4× objective lens and 1920 × 1024 pixels colour camera for hardware were used. The software uses mathematical morphology filters. The new system was compact and low-priced. And the remarkable point is, this system can be applicable not only to human blood, but also to non-human samples. The speed was 208-236 s per 5 × 20 mm area, while capturing 378 images, which achieved the aim of the project. The false-positive ratio achieved below 5% in some slides.
生物剂量测定中最流行且堪称“金标准”的现象是白细胞中期双着丝粒染色体的出现。中期寻检器是一种用于生物剂量测定的工具,可在载玻片上寻找中期细胞。作者与一家软件公司正在使用一种比传统系统更快的新型专用软件。硬件方面使用了配备电动X-Y载物台、4倍物镜以及1920×1024像素彩色相机的尼康Eclipse Ni-E显微镜。该软件使用数学形态学滤波器。新系统结构紧凑且价格低廉。值得注意的是,该系统不仅适用于人体血液,还适用于非人类样本。在捕获378张图像时,速度为每5×20毫米区域208 - 236秒,达到了项目目标。在某些载玻片上,假阳性率低于5%。