⚡ 本页包含 AI 生成的分析内容,仅供参考
该论文提出通过逆转散射实现深层组织光学成像,解决了传统光学成像因组织散射导致穿透深度不足1毫米的问题。
is on the order of 100 microns. This extreme turbidity prevents scientists and clinicians from performing deeply penetrating high resolution optical imaging through humans and animal models alike. The challenge associated with deep-tissue optical imaging is akin to the challenge of focusing light through a dense fog – scattering prevents meaningful solutions to this problem by traditional means. This is why high-resolution optical imaging and optical excitation methods cannot reach more than 1 mm into biological tissues. Deep penetrating imaging modalities, such as x-ray imaging, MRI, and ultrasound imaging, are excellent at revealing structures within biological entities, but provide no biochemical detection capability. On the other hand, there is a wide variety of optical domain methods capable of revealing biochemical content, including fluorescence, harmonic generation, Raman spectroscopy and absorption spectral signatures. If we can overcome optical tissue
California Institute of Technology, Pasadena, CA, Biological tissues are highly turbid in the optical regime – the mean optical scattering length