Computer assisted image analysis of ICG angiography

采用不同两幅图像的计算机辅助图像相减方法，观察ICG血管造影中脉络膜的详细循环情况，如染色渗漏、病变血管、准确循环时间等。该结果被接受并将发表在欧洲眼科杂志上。然后，我们采用三维软件的计算机模拟方法研究了ICG血管造影的低荧光。本研究观察了ICG血管造影中阻塞物质的位置和阻塞率。该结果在1995年第二届ICG血管造影国际研讨会上发表。我们正在研究在实际的人体ICG血管造影中使用计算机绘图软件绘制的低荧光病变。减光法可以显示低荧光病变，但肉眼仅能检测到少数病变。因此，单纯的人眼观察不足以诊断ICG血管造影。研究结果将于1996年3月在日本眼科学会学术会议上发表。

We could observe detail choroidal circulation of ICG angiography such as dye leakage, pathological vessels, exact circulation time using computer assisted image subtraction method of different two images. The result is accepted and will be published in European J.Ophthalmology.Then, we studied hypofluorescence of ICG angiography using computer simulation method by three dimensional software. In this study, location of blocking substance and blocking rate in ICG angiography were observed. The result was presented at the 2nd International Symposium of ICG angiography in 1995.We are studying about hypofluorescent lesion which is made using computer graphic software in the actual human ICG angiograph. The hypofluorescent lesions could be demonstrated by subtration method, but by the simple observation of human eye only a few lesions could be detected.As a result, simple observation of human eye is not enough ability to diagnose ICG angiography. The result will be presented at the symposium of the meeting of Japanese Ophthalmology Society in March 1996.