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公开(公告)号：US06639674B2
公开(公告)日：2003-10-28
申请号：US09821836
申请日：2001-03-28
IPC分类号： G01J400
CPC分类号： A61B5/444 , A61B5/0075 , A61B5/0084 , A61B5/0088 , G01N21/21
摘要： Methods and apparatus for assessing the size of a scattering element of a sample. Primary radiation is generated from a source. The primary radiation is polarized to produce polarized primary radiation. The polarized primary radiation is directed to the sample to generate reflected radiation. The reflected radiation is directed through a polarizer to produce filtered reflected radiation, the polarizer being configured to select reflected radiation parallel and perpendicular to the polarization of the polarized primary radiation. The filtered radiation is detected, and a depolarization ratio is calculated using the detected filtered radiation. The size of the scattering element is calculated using the depolarization ratio.
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公开(公告)号：US06187289B1
公开(公告)日：2001-02-13
申请号：US09175234
申请日：1998-10-20
IPC分类号： A61K4900
CPC分类号： G01N33/52 , A61B5/0071 , A61B5/4331 , G01N1/30 , G01N2015/1488
摘要： A method for using acetic acid as a contrast agent during reflectance confocal imaging of normal and neoplastic tissue, particularly epithelium. In one aspect, the invention includes a method of using acetic acid as a contrast agent for confocal imaging of cells, including applying acetic acid to the diagnostic tissue sample in sufficient concentration to induce a small scale alteration of the index of refraction of nuclei in the cells; and imaging such cells using a reflectance confocal imaging system.
摘要翻译： 在正常和肿瘤组织，特别是上皮的反射共聚焦成像期间使用乙酸作为造影剂的方法。 一方面，本发明包括使用乙酸作为细胞共聚焦显像的造影剂的方法，包括以足够的浓度向诊断组织样品中加入乙酸以诱导细胞核中的折射指数的小规模改变 细胞; 并使用反射共聚焦成像系统对这样的细胞进行成像。
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3.发明授权Method for probabilistically classifying tissue in vitro and in vivo using fluorescence spectroscopy 有权使用荧光光谱法在体外和体内概率分类组织的方法公开(公告)号：US07236815B2
公开(公告)日：2007-06-26
申请号：US10688152
申请日：2003-10-17
申请人： Rebecca Richards-Kortum , Nirmala Ramanujam , Anita Mahadevan-Jansen , Michele Follen , Urs Utzinger
发明人： Rebecca Richards-Kortum , Nirmala Ramanujam , Anita Mahadevan-Jansen , Michele Follen , Urs Utzinger
IPC分类号： A61B6/00
CPC分类号： G01N21/274 , A61B5/0071 , A61B5/0075 , A61B5/0084 , A61B5/4331 , A61B5/7264 , G01N21/6486 , G01N2021/6417 , G01N2021/6419 , G01N2021/6484 , G06F19/00 , Y10S436/813
摘要： Fluorescence spectral data acquired from tissues in vivo or in vitro is processed in accordance with a multivariate statistical method to achieve the ability to probabilistically classify tissue in a diagnostically useful manner, such as by histopathological classification. The apparatus includes a controllable illumination device for emitting electromagnetic radiation selected to cause tissue to produce a fluorescence intensity spectrum. Also included are an optical system for applying the plurality of radiation wavelengths to a tissue sample, and a fluorescence intensity spectrum detecting device for detecting an intensity of fluorescence spectra emitted by the sample as a result of illumination by the controllable illumination device. The system also include a data processor, connected to the detecting device, for analyzing detected fluorescence spectra to calculate a probability that the sample belongs in a particular classification. The data processor analyzes the detected fluorescence spectra using a multivariate statistical method. The five primary steps involved in the multivariate statistical method are (i) preprocessing of spectral data from each patient to account for inter-patient variation, (ii) partitioning of the preprocessed spectral data from all patients into calibration and prediction sets, (iii) dimension reduction of the preprocessed spectra in the calibration set using principal component analysis, (iv) selection of the diagnostically most useful principal components using a two-sided unpaired student's t-test and (v) development of an optimal classification scheme based on logistic discrimination using the diagnostically useful principal component scores of the calibration set as inputs.
摘要翻译： 根据多变量统计学方法处理从体内或体外组织获得的荧光光谱数据，以实现以诊断有用的方式（例如通过组织病理学分类）对组织进行概率分类的能力。 该装置包括用于发射被选择使得组织产生荧光强度光谱的电磁辐射的可控照明装置。 还包括用于将多个辐射波长施加到组织样本的光学系统和用于通过可控照明装置的照明来检测由样品发射的荧光光谱的强度的荧光强度光谱检测装置。 该系统还包括连接到检测装置的数据处理器，用于分析检测到的荧光光谱以计算样品属于特定分类的概率。 数据处理器使用多变量统计方法分析检测到的荧光光谱。 多变量统计方法涉及的五个主要步骤是（i）从每个患者预处理光谱数据以考虑患者间变异，（ii）将预处理的光谱数据从所有患者划分为校准和预测组，（iii） 使用主成分分析对校准集中的预处理光谱进行维数减少，（iv）使用双侧不配对的学生的t检验来选择诊断上最有用的主成分，以及（v）基于物流歧视开发最优分类方案 使用校准集的诊断上有用的主成分分数作为输入。
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4.发明申请Vision enhancement system for improved detection of epithelial neoplasia and other conditions 有权视力增强系统，用于改善上皮瘤形成和其他病症的检测公开(公告)号：US20050080343A1
公开(公告)日：2005-04-14
申请号：US10732199
申请日：2003-12-10
CPC分类号： A61B5/0088 , A61B1/00186 , A61B1/043 , A61B1/0646 , A61B1/233 , A61B1/24 , A61B1/303 , A61B5/0071 , A61B5/0075 , A61B5/0084
摘要： Systems and methods for diagnosing epithelial neoplasia and other conditions includes, in a representative embodiment, providing the human eyes with a filter to observe the autofluorescence of a tissue sample. Using optimized wavelengths from a filtered light source, a sample is illuminated. The radiation from the sample is filtered to enhance the contrast between a normal sample and a diseased sample observable by the human eye.
摘要翻译： 用于诊断上皮瘤形成和其它病症的系统和方法包括在代表性的实施方案中，为人眼提供过滤器以观察组织样品的自发荧光。 使用来自滤波光源的优化波长，照亮样品。 将来自样品的辐射过滤以增强人眼可观察到的正常样品与患病样品之间的对比度。
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公开(公告)号：US06766184B2
公开(公告)日：2004-07-20
申请号：US09821786
申请日：2001-03-28
IPC分类号： A61B505
CPC分类号： A61B1/00186 , A61B1/043 , A61B1/063 , A61B1/0638 , A61B1/0646 , A61B1/303 , A61B5/0071 , A61B5/0075 , A61B5/0084 , A61B5/0086
摘要： Methods and apparatus for generating multispectral images of tissue. The multispectral images may be used as a diagnostic tool for conditions such as cervical cancer detection and diagnosis. Primary radiation is produced with an illumination source. The primary radiation is filtered to select a first wavelength and a first polarization. Tissue is illuminated with the filtered primary radiation to generate secondary radiation, which is filtered to select a second wavelength and a second polarization. The filtered secondary radiation is collected with a detector, and a plurality of multispectral images of the tissue is generated according to different combinations of first and second wavelengths and first and second polarization with an analysis unit in operable relation with the detector. Apparatus utilizing the invention include endoscopes and colposcopes.
摘要翻译： 用于生成组织多光谱图像的方法和装置。 多光谱图像可以用作诸如宫颈癌检测和诊断的诊断工具。 主要辐射是用照明源产生的。 对主辐射进行滤波以选择第一波长和第一偏振。 组织用经滤波的主辐射照射以产生二次辐射，其被滤波以选择第二波长和第二极化。 用检测器收集滤波后的二次辐射，根据第一和第二波长的不同组合以及与检测器可操作的分析单元产生第一和第二极化的组织的多个多光谱图像。 利用本发明的装置包括内窥镜和阴道镜。
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6.发明授权Vision enhancement system for improved detection of epithelial neoplasia and other conditions 有权视力增强系统，用于改善上皮瘤形成和其他病症的检测公开(公告)号：US07365844B2
公开(公告)日：2008-04-29
申请号：US10732199
申请日：2003-12-10
IPC分类号： G01J3/28
CPC分类号： A61B5/0088 , A61B1/00186 , A61B1/043 , A61B1/0646 , A61B1/233 , A61B1/24 , A61B1/303 , A61B5/0071 , A61B5/0075 , A61B5/0084
摘要： Systems and methods for diagnosing epithelial neoplasia and other conditions includes, in a representative embodiment, providing the human eyes with a filter to observe the autofluorescence of a tissue sample. Using optimized wavelengths from a filtered light source, a sample is illuminated. The radiation from the sample is filtered to enhance the contrast between a normal sample and a diseased sample observable by the human eye.
摘要翻译： 用于诊断上皮瘤形成和其它病症的系统和方法包括在代表性的实施方案中，为人眼提供过滤器以观察组织样品的自发荧光。 使用来自滤波光源的优化波长，照亮样品。 将来自样品的辐射过滤以增强人眼可观察到的正常样品与患病样品之间的对比度。
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公开(公告)号：US06697666B1
公开(公告)日：2004-02-24
申请号：US09519153
申请日：2000-03-06
IPC分类号： A61B500
CPC分类号： A61B5/0071 , A61B5/0075 , A61B5/0084 , A61B5/4331
摘要： A method and apparatus for characterizing tissue of epithelial lined viscus in vivo including, for example, the endocervical canal. The method comprises illuminating an interior surface of the viscus with electromagnetic radiation wavelengths to produce a plurality of fluorescence intensity spectra, detecting a plurality of emission wavelengths from the fluorescence intensity spectra, and characterizing the epithelial viscus tissue as a function of the emission wavelengths. The apparatus includes a light source of emitting a plurality of electromagnetic radiation wavelengths, an optical probe connected to the light source, the probe being adapted to apply the plurality of electromagnetic radiation wavelengths to an interior surface of epithelial viscus tissue under test and to gather fluorescence emitted from the tissue, a detector connected to the probe for detecting at least one fluorescence spectrum emitted from the tissue under test and a programmed computer connected to the detector for processing the at least one fluorescence spectrum according to a predetermined algorithm to characterize the tissue under test.
摘要翻译： 用于表征体内上皮内衬粘液的组织的方法和装置，包括例如子宫颈管。 该方法包括用电磁辐射波长照射粘液的内表面以产生多个荧光强度光谱，从荧光强度光谱检测多个发射波长，以及表征上皮粘液组织作为发射波长的函数。 该装置包括发射多个电磁辐射波长的光源，连接到光源的光学探针，该探针适于将多个电磁辐射波长施加到被测上皮粘液组织的内表面并收集荧光 从所述组织发射的检测器，连接到所述探针的检测器，用于检测从被检测组织发射的至少一个荧光光谱;以及编程计算机，连接到所述检测器，用于根据预定算法处理所述至少一个荧光光谱， 测试。
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8.发明授权公开(公告)号：US06241662B1
公开(公告)日：2001-06-05
申请号：US09175232
申请日：1998-10-20
申请人： Rebecca Richards-Kortum , Anant Agrawal , Costas Pitris , Urs Utzinger , Carrie Brookner , Michele Follen Mitchell
发明人： Rebecca Richards-Kortum , Anant Agrawal , Costas Pitris , Urs Utzinger , Carrie Brookner , Michele Follen Mitchell
IPC分类号： A61B500
CPC分类号： G01N33/52 , A61B5/0071 , A61B5/4331 , G01N1/30 , G01N2015/1488
摘要： A method for using acetic acid as a signal enhancing contrast agent during fluorescence spectroscopy of normal and neoplastic tissue, particularly epithelium. In one aspect, the invention includes a method of detecting tissue abnormality in a diagnostic tissue sample in a patient, comprising the steps of obtaining a first fluorescence intensity spectrum from the diagnostic tissue sample; thereafter, applying acetic acid to the diagnostic tissue sample in sufficient concentration to alter the response of such diagnostic tissue sample to electromagnetic radiation for at least an effective period of time; during the effective period of time, obtaining a second fluorescence intensity spectrum from the diagnostic tissue sample; determining a parameter indicative of a change between the first and second fluorescence emission intensity spectra; and analyzing the determined parameter to determine a probability that the diagnostic tissue sample is normal or abnormal.
摘要翻译： 在正常和肿瘤组织，特别是上皮的荧光光谱学过程中使用乙酸作为信号增强造影剂的方法。 一方面，本发明包括检测患者的诊断性组织样本中的组织异常的方法，包括以下步骤：从所述诊断组织样品获得第一荧光强度光谱; 此后，以足够的浓度将乙酸施用于诊断组织样品，以将这种诊断性组织样品的响应改变为电磁辐射至少有效的一段时间; 在有效时间段内，从诊断组织样品获得第二荧光强度光谱; 确定指示所述第一和第二荧光发射强度光谱之间的变化的参数; 并分析确定的参数以确定诊断组织样本正常或异常的概率。
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公开(公告)号：US20120065495A1
公开(公告)日：2012-03-15
申请号：US13229112
申请日：2011-09-09
CPC分类号： A61B1/043 , A61B1/00096 , A61B1/00165 , A61B1/0017 , A61B1/0638 , A61B1/07 , A61B5/0068 , A61B5/0071 , A61B5/0084
摘要： Imaging techniques. Radiation is directed from a source onto a sample using an endoscope having cellular or subcellular resolution. The endoscope includes one or more fibers. The fibers have a proximate end and a distal end, and the distal end is lensless. A focal plane of the endoscope is substantially at a tip of the distal end. Radiation from the sample is directed onto a detector to diagnose or monitor the sample.
摘要翻译： 成像技术。 使用具有细胞或亚细胞分辨率的内窥镜将辐射从源引导到样品上。 内窥镜包括一根或多根纤维。 纤维具有近端和远端，并且远端是无透镜的。 内窥镜的焦平面基本上在远端的尖端。 来自样品的辐射被引导到检测器上以诊断或监测样品。
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公开(公告)号：US20090068108A1
公开(公告)日：2009-03-12
申请号：US11877476
申请日：2007-10-23
IPC分类号： A61K49/00 , G01N33/543 , A61P35/00
CPC分类号： A61B5/0059 , A61B5/411 , A61B5/415 , A61B5/416 , A61B5/418 , A61K49/00 , A61K49/0017 , A61K49/0058 , A61K49/0067 , B82Y15/00 , B82Y30/00 , G01N33/587 , G01N33/588
摘要： Methods and apparatuses for detecting a condition of a sample (including cervical cancers and pre-cancers) through reflectance and/or fluorescence imaging. A sample is obtained. One or more metallic nanoparticles and/or one or more quantum dots are obtained. The one or more metallic nanoparticles and/or one or more quantum dots are coupled to one or more biomarkers of the sample that are associated with the condition. A reflectance and/or fluorescence image of the sample is then taken. The image(s) exhibit characteristic optical scattering from the one or more metallic nanoparticles and/or characteristic fluorescence excitation from the one or more quantum dots to signal the presence of the one or more biomarkers. In this way, the condition can be readily screened or diagnosed.
摘要翻译： 通过反射和/或荧光成像检测样品（包括宫颈癌和癌前病症）的方法和装置。 获得样品。 获得一种或多种金属纳米颗粒和/或一个或多个量子点。 将一种或多种金属纳米颗粒和/或一个或多个量子点偶联到与该条件相关联的样品的一个或多个生物标志物上。 然后取样品的反射率和/或荧光图像。 该图像表现出来自一种或多种金属纳米颗粒的特征光学散射和/或来自一个或多个量子点的特征荧光激发以发出一个或多个生物标志物的存在。 以这种方式，可以容易地筛选或诊断病症。
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