METHOD AND APPARATUS FOR CONCURRENT IMAGING AT VISIBLE AND INFRARED WAVELENGTHS

摘要

A method of operating a fluorescent imaging system during an open surgery procedure includes concurrently illuminating a tissue with NIR excitation light and visible light, wherein NIR fluorescent light is emitted from the tissue and collecting the NIR fluorescent light and reflected visible light that is reflected from the tissue. The method also includes blocking at least a portion of the NIR excitation light reflected from the tissue and attenuating the reflected visible light. The method further includes imaging, using a camera, the NIR fluorescent light and the attenuated reflected visible light.

主权项

1. A method of operating an imaging system, the method comprising:
applying a fluorescent dye to a target tissue; providing an NIR excitation light source operable to produce NIR excitation light having an excitation wavelength; concurrently illuminating the target tissue using the NIR excitation light and visible light having visible wavelengths; collecting fluorescent emission from the target tissue; collecting visible light reflected from the target tissue; passing the collected fluorescent emission and the reflected visible light through an optical system comprising:
a first filter operable to reduce an intensity of light at the excitation wavelength; anda second filter operable to reduce an intensity of light at the visible wavelengths; concurrently detecting the fluorescent emission and filtered visible light reflected from the target tissue to form an image of the target tissue; and adjusting the NIR excitation light source to modify a contrast of the image of the target tissue.