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    • 1. 发明授权
    • Method and apparatus for lymph node mapping
    • 淋巴结图谱的方法和装置
    • US08755866B2
    • 2014-06-17
    • US11381443
    • 2006-05-03
    • John F. HeanueJoseph A. HeanueBrian P. WilfleyAugustus P. Lowell
    • John F. HeanueJoseph A. HeanueBrian P. WilfleyAugustus P. Lowell
    • A61B6/00
    • A61B5/0059A61B5/415A61B5/418G01J3/02G01J3/0205G01J3/0218G01J3/10G01J3/2823G01J3/4406G01N21/6408G01N2201/0826G01N2201/0833
    • A system and method for optical lymph node mapping. The system is useful for guiding sentinel lymph node biopsy surgeries. A contrast agent that includes a fluorescent dye is injected near the site of a malignancy. The contrast agent drains into the lymphatic system, collecting in a sentinel node or nodes. The system utilizes one or more low-power continuous-wave lasers or light-emitting diodes modulated with a digital code sequence to probe the tissue suspected of containing the sentinel node. When the light is incident near the sentinel node, it will excite fluorescence from the dye. A portion of the scattered fluorescent light is captured with one or more photo-detectors. A correlation of the photo-detector signal and the digital code sequence is calculated to produce an estimate of the distribution of flight times for photons traveling from a given source to a given detector. The flight time distributions are used along with the measured amplitudes to reconstruct a map of contrast agent location within the tissue.
    • 一种用于光学淋巴结图谱的系统和方法。 该系统可用于引导前哨淋巴结活检。 包含荧光染料的造影剂在恶性肿瘤部位附近注射。 造影剂排入淋巴系统,收集在前哨节点或节点。 该系统利用一个或多个低功率连续波激光器或用数字代码序列调制的发光二极管来探测怀疑含有前哨节点的组织。 当光在哨兵节点附近入射时,它会激发染料的荧光。 一部分散射的荧光被一个或多个光电探测器捕获。 计算光检测器信号和数字码序列的相关性,以产生从给定源到给定检测器的光子的飞行时间分布的估计。 飞行时间分布与测量的振幅一起使用以重建组织内造影剂位置的图。