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    • 3. 发明申请
    • Method And Apparatus For Depth-Resolved Fluorescence, Chromophore, and Oximetry Imaging For Lesion Identification During Surgery
    • 手术中病变识别的深度解析荧光,发色团和血氧饱和成像的方法和装置
    • US20110275932A1
    • 2011-11-10
    • US13145505
    • 2009-12-04
    • Frederic LeblondDavid W. RobertsBrian W. PogueKeith D. PaulsenAlex HartovScott C. DavisDax Kepshire
    • Frederic LeblondDavid W. RobertsBrian W. PogueKeith D. PaulsenAlex HartovScott C. DavisDax Kepshire
    • A61B6/00
    • A61B5/0073A61B5/0062A61B5/416A61B34/20A61B90/20G02B21/0064G02B21/16
    • A tomographic fluorescent imaging device for imaging fluorophores in biological tissues has a scanned laser for scanning the tissue and a camera for receiving light from the biological tissue at an angle to the beam at a second wavelength ten or more nanometers greater in wavelength than the wavelength of the laser. Use of both intrinsic and extrinsic fluorophores is described. Images are obtained at each of several positions of the beam. An image processing system receives the series of images, models a path of the beam through the tissue, and determines depth of fluorophore in tissue from intersections of the modeled path of the beam and the path of the received light. The laser is of 600 nm or longer wavelength, to provide penetration of tissue. The imaging device is used during surgery to visualize lesions of various types to ensure complete removal of malignant tumors. An alternative embodiment uses differences in intensity of fluorescent radiation from tissue as observed at different wavelengths to determine depth of fluorophore in tissue. An embodiment operates at multiple wavelengths to construct tomographic images of chromophores, such as hemoglobin, and is capable of dynamic imaging.
    • 用于在生物组织中成像荧光团的断层摄影荧光成像装置具有用于扫描组织的扫描激光器和用于以与波长成一定角度的波长的波长的第二波长以相对于波长的波长的波长 激光。 描述了内在和外在的荧光团的使用。 在光束的几个位置的每一个处获得图像。 图像处理系统接收一系列图像,模拟通过组织的光束的路径,并且确定组织中荧光团的深度,该距离来自光束的建模路径和接收光的路径的交叉点。 激光器具有600nm或更长的波长,以提供组织的穿透。 在手术期间使用成像装置可视化各种损伤以确保完全去除恶性肿瘤。 替代实施例使用在不同波长处观察到的来自组织的荧光辐射的强度差来确定组织中荧光团的深度。 一个实施例在多个波长下操作以构建诸如血红蛋白的发色团的断层图像,并且能够进行动态成像。