Background: It is not always possible to detect nonpalpable small lymph nodes (LNs) surrounded by adipose tissue under the wavelength of visible light. A newly developed near-infrared camera with InGaAs element was able to capture photographs using light at >1000-nm wavelength, at which the difference in absorbance between water and lipids is large. This study investigated the ability to detect nonvisible small LNs using light at 1300-nm wavelength.

中文翻译：

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使用近红外相机检测被脂肪组织包围的不可触及的微小腋窝淋巴结。

背景：在可见光波长下，并非总能检测到被脂肪组织包围的不可触及的小淋巴结 (LN)。一种新开发的具有 InGaAs 元素的近红外相机能够使用 >1000 纳米波长的光拍摄照片，在该波长下，水和脂质之间的吸光度差异很大。本研究调查了使用 1300 nm 波长的光检测不可见小 LN 的能力。