Spectroscopic imaging of sublingual microcirculation

我们制作了一个由三色发光二极管（LED）和微型电荷耦合器件相机组成的微循环成像试验模型。我们首次证实了它清楚地捕捉到了猪肠道的微循环。然后我们用牛血制作了一个体模，并根据Beer-Lambert定律从蓝色LED或绿色LED下的图像中估计了氧饱和度（OS）。我们可以在一定程度上估计OS，也注意到需要修改估计模型以提高估计精度。

We have made a trial model composed of three-color light emitting diodes (LED) and a miniature charge-coupled device camera for microcirculation imaging. We first confirmed that it clearly captured the microcirculation of pig intestine. We then made a phantom with bovine blood and estimated the oxygen saturation (OS) by Beer-Lambert's law from images under blue LED or green LED. We could estimate OS in some degree and also noticed that modification of the estimation model was needed for better estimation accuracy.