-
公开(公告)号：US5678556A
公开(公告)日：1997-10-21
申请号：US502844
申请日：1995-07-14
申请人： Atsushi Maki , Adi Bonen , Yoshitoshi Ito , Yuichi Yamashita , Yukiko Hirabayashi , Hideaki Koizumi , Fumio Kawaguchi , Hideji Fujii
发明人： Atsushi Maki , Adi Bonen , Yoshitoshi Ito , Yuichi Yamashita , Yukiko Hirabayashi , Hideaki Koizumi , Fumio Kawaguchi , Hideji Fujii
CPC分类号： G01N21/4795 , G01N2021/4797
摘要： An imaging method for spatial distributions of concentrations of absorbers distributed in an object including a radiation step of applying pulsating or continuous light radiated from predetermined incident positions with predetermined wavelengths to the object in the form of a scattering medium containing the absorbers, and a detection step of detecting intensities of light passing through the object at predetermined detection positions. The imaging method also includes a step of finding a plurality photon paths for a plurality of pairs of the incident and detected positions of a model with similar dimensions to the object but without absorbers starting at the incident positions and ending at the detected positions, a step of finding averaged photon-path lengths of the photon paths starting at the incident positions and ending at the detection positions in the model by simulation, a step of finding spatial distributions of absorber concentrations from the averaged photon-path lengths, radiated intensities of the radiated light applied to the object, detected intensities of light detected at the detection positions and optical constants of the absorbers for the radiated light applied to the object, and a step of displaying the spatial distributions of the absorber concentrations.
摘要翻译： 一种用于分散在物体中的吸收体的浓度的空间分布的成像方法，包括：将包含预定波长的预定入射位置的脉冲或连续光以包含吸收体的散射介质的形式施加到物体的辐射步骤;以及检测步骤 检测在预定检测位置通过物体的光的强度。 该成像方法还包括以下步骤：为具有与物体相似尺寸的模型的多个成对的入射和检测位置找到多个光子路径，但没有从入射位置开始并在检测位置结束的吸收体的步骤;步骤 通过模拟发现在入射位置开始并结束于模型中的检测位置的光子路径的平均光子路径长度，从平均光子路径长度，辐射强度的辐射强度中找到吸收剂浓度的空间分布的步骤 施加到物体的光，检测到的检测到的光的检测强度和被施加到物体的辐射光的吸收体的光学常数，以及显示吸收体浓度的空间分布的步骤。
-
公开(公告)号：US20050171440A1
公开(公告)日：2005-08-04
申请号：US11037338
申请日：2005-01-19
CPC分类号： A61B5/0059 , A61B5/0042 , A61B5/055 , A61B5/14552 , A61B5/14553 , A61B5/18 , A61B5/6814 , A61B5/7207 , A61B5/7228 , A61B6/03 , A61B6/507 , A61B2562/0219 , A61B2562/0233 , A61B2562/046
摘要： In an optical measurement system and imaging method adapted to measure in vivo information in a living body without harming the living body, light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. Light is utilized to image the results of the measurements, in which the measuring time is shortened by estimating fluctuation attributable to the living body, and the presence or absence of a change in measured signal can be decided easily by displaying an estimation signal and a measured signal at a time.
-
公开(公告)号：US06282438B1
公开(公告)日：2001-08-28
申请号：US09203610
申请日：1998-12-02
IPC分类号： A61B600
CPC分类号： A61B5/0059 , A61B5/0042 , A61B5/055 , A61B5/14552 , A61B5/14553 , A61B5/18 , A61B5/6814 , A61B5/7207 , A61B5/7228 , A61B6/03 , A61B6/507 , A61B2562/0219 , A61B2562/0233 , A61B2562/046
摘要： Light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. After completion of the measurement or during the measurement, changes in concentration values of absorbers in the living body are determined from the living body transmitting light intensity levels of the plurality of wavelengths detected at the respective detection points and a measuring point is set on a perpendicular extending through an intermediate point between the incident point and each detection point so as to image a function of the living body. In living body optical measurement system and method, the measuring time is shortened by estimating fluctuation attributable to the living body, the presence or absence of a change in measured signal can be decided easily by displaying an estimation signal and a measured signal at a time, and a local change in. hemodynamic movement can be measured by detecting light rays transmitting through the interior of the living body by the two light detectors disposed at different two sites (equidistant from the light incident point) on a subject and by separating only the local change in hemodynamic movement from an overall change in hemodynamic movement in the living body in accordance with a logarithmic difference between the two detection signals.
摘要翻译： 以多个不同频率强度调制的多个波长的光线照射在生物体的表面上的多个照射位置上，并且生物体的时间变化透射与各个相对应的光强度水平 波长和各个照射位置在生物体的表面上的不同位置处被测量。 在测量完成之后或在测量期间，生物体中的吸收体的浓度值的变化是根据在各个检测点处检测到的多个波长的光强度水平来发射的，并且将测量点设定在垂直方向 延伸穿过入射点和每个检测点之间的中间点，以便对活体的功能进行成像。 在生物体光学测量系统和方法中，通过估计归因于生物体的波动来缩短测量时间，通过一次显示估计信号和测量信号可以容易地确定测量信号的变化是否存在， 并且可以通过检测设置在被摄体上不同的两个位置（等于光入射点的位置）的两个光检测器检测通过生物体的内部的光线，并且仅分离本地 根据两个检测信号之间的对数差异，从生物体的血液动力学运动的总体变化中改变血流动力学运动。
-
公开(公告)号：US07440794B2
公开(公告)日：2008-10-21
申请号：US11037282
申请日：2005-01-19
IPC分类号： A61B5/00
CPC分类号： A61B5/0059 , A61B5/0042 , A61B5/055 , A61B5/14552 , A61B5/14553 , A61B5/18 , A61B5/6814 , A61B5/7207 , A61B5/7228 , A61B6/03 , A61B6/507 , A61B2562/0219 , A61B2562/0233 , A61B2562/046
摘要： In an optical measurement system and imaging method adapted to measure in vivo information in a living body without harming the living body, light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. Light is utilized to image the results of the measurements, in which the measuring time is shortened by estimating fluctuation attributable to the living body, and the presence or absence of a change in measured signal can be decided easily by displaying an estimation signal and a measured signal at a time.
摘要翻译： 在适于测量活体内的体内信息而不损害生物体的光学测量系统和成像方法中，以多个不同频率强度调制的多个波长的光线照射在多个照射位置 在生物体的表面上，在生物体的表面的不同位置测量发射对应于各个波长和各个照射位置的光强度水平的生物体的随时间变化。 光被用于对测量结果进行成像，其中通过估计归因于生物体的波动来缩短测量时间，并且可以通过显示估计信号和测量的信号来容易地确定测量信号的变化的存在或不存在 信号一次。
-
公开(公告)号：US07286870B2
公开(公告)日：2007-10-23
申请号：US09900144
申请日：2001-07-09
IPC分类号： A61B6/00
CPC分类号： A61B5/0059 , A61B5/0042 , A61B5/055 , A61B5/14552 , A61B5/14553 , A61B5/18 , A61B5/6814 , A61B5/7207 , A61B5/7228 , A61B6/03 , A61B6/507 , A61B2562/0219 , A61B2562/0233 , A61B2562/046
摘要： In an optical measurement system and imaging method adapted to measure in vivo information in a living body without harming the living body, light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. Light is utilized to image the results of the measurements, in which the measuring time is shortened by estimating fluctuation attributable to the living body, and the presence or absence of a change in measured signal can be decided easily by displaying an estimation signal and a measured signal at a time.
摘要翻译： 在适于测量活体内的体内信息而不损害生物体的光学测量系统和成像方法中，以多个不同频率强度调制的多个波长的光线照射在多个照射位置 在生物体的表面上，在生物体的表面的不同位置测量发射对应于各个波长和各个照射位置的光强度水平的生物体的随时间变化。 光被用于对测量结果进行成像，其中通过估计归因于生物体的波动来缩短测量时间，并且可以通过显示估计信号和测量的信号来容易地确定测量信号的变化的存在或不存在 信号一次。
-
公开(公告)号：US08050744B2
公开(公告)日：2011-11-01
申请号：US11037338
申请日：2005-01-19
CPC分类号： A61B5/0059 , A61B5/0042 , A61B5/055 , A61B5/14552 , A61B5/14553 , A61B5/18 , A61B5/6814 , A61B5/7207 , A61B5/7228 , A61B6/03 , A61B6/507 , A61B2562/0219 , A61B2562/0233 , A61B2562/046
摘要： In an optical measurement system and imaging method adapted to measure in vivo information in a living body without harming the living body, light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. Light is utilized to image the results of the measurements, in which the measuring time is shortened by estimating fluctuation attributable to the living body, and the presence or absence of a change in measured signal can be decided easily by displaying an estimation signal and a measured signal at a time.
摘要翻译： 在适于测量活体内的体内信息而不损害生物体的光学测量系统和成像方法中，以多个不同频率强度调制的多个波长的光线照射在多个照射位置 在生物体的表面上，在生物体的表面的不同位置测量发射对应于各个波长和各个照射位置的光强度水平的生物体的随时间变化。 光被用于对测量结果进行成像，其中通过估计归因于生物体的波动来缩短测量时间，并且可以通过显示估计信号和测量的信号来容易地确定测量信号的变化的存在或不存在 信号一次。
-
公开(公告)号：US5803909A
公开(公告)日：1998-09-08
申请号：US539871
申请日：1995-10-06
CPC分类号： A61B5/0059 , A61B5/0042 , A61B5/14552 , A61B5/14553 , A61B5/18 , A61B5/6814 , A61B2562/0219 , A61B2562/0233 , A61B2562/046 , A61B5/055 , A61B5/7207 , A61B5/7228 , A61B6/03 , A61B6/507
摘要： Light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface Changes in concentration values of absorbers are determined from the living body transmitting light intensity levels and a measuring point is set on a perpendicular extending through an intermediate point between the incident point and each detection point to image a function of the living body. The measuring time is shortened by estimating fluctuation attributable to the living body, and a local change in hemodynamic movement can be measured by detecting light rays transmitting through the interior of the living body by light detection at two different sites (equidistant from the light incident point) on a subject and by separating only the local change in hemodynamic movement from an overall change in hemodynamic movement in the living body in accordance with a logarithmic difference between the two detection signals.
摘要翻译： 以多个不同频率强度调制的多个波长的光线照射在生物体的表面上的多个照射位置上，并且生物体的时间变化透射与各个相对应的光强度水平 波长和各个照射位置在表面上的不同位置被测量吸收体的浓度值的变化由生物体透射光强度水平确定，并且测量点设置在延伸穿过入射点和每个之间的中间点的垂直 检测点成像生物体的功能。 通过估计生物体的波动来缩短测量时间，并且可以通过在两个不同位置（等于光入射点的光检测）检测透射通过生物体内部的光线来测量血液动力学运动的局部变化 ），并且根据两个检测信号之间的对数差异仅分离血液动力学运动的局部变化与生物体中的血液动力学运动的总体变化。
-
公开(公告)号：US07715904B2
公开(公告)日：2010-05-11
申请号：US11037339
申请日：2005-01-19
CPC分类号： A61B5/0059 , A61B5/0042 , A61B5/055 , A61B5/14552 , A61B5/14553 , A61B5/18 , A61B5/6814 , A61B5/7207 , A61B5/7228 , A61B6/03 , A61B6/507 , A61B2562/0219 , A61B2562/0233 , A61B2562/046
摘要： In an optical measurement system and imaging method adapted to measure in vivo information in a living body without harming the living body, light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. Light is utilized to image the results of the measurements, in which the measuring time is shortened by estimating fluctuation attributable to the living body, and the presence or absence of a change in measured signal can be decided easily by displaying an estimation signal and a measured signal at a time.
摘要翻译： 在适于测量活体内的体内信息而不损害生物体的光学测量系统和成像方法中，以多个不同频率强度调制的多个波长的光线照射在多个照射位置 在生物体的表面上，在生物体的表面的不同位置测量发射对应于各个波长和各个照射位置的光强度水平的生物体的随时间变化。 光被用于对测量结果进行成像，其中通过估计归因于生物体的波动来缩短测量时间，并且可以通过显示估计信号和测量的信号来容易地确定测量信号的变化的存在或不存在 信号一次。
-
公开(公告)号：US20050148857A1
公开(公告)日：2005-07-07
申请号：US11037282
申请日：2005-01-19
CPC分类号： A61B5/0059 , A61B5/0042 , A61B5/055 , A61B5/14552 , A61B5/14553 , A61B5/18 , A61B5/6814 , A61B5/7207 , A61B5/7228 , A61B6/03 , A61B6/507 , A61B2562/0219 , A61B2562/0233 , A61B2562/046
摘要： In an optical measurement system and imaging method adapted to measure in vivo information in a living body without harming the living body, light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. Light is utilized to image the results of the measurements, in which the measuring time is shortened by estimating fluctuation attributable to the living body, and the presence or absence of a change in measured signal can be decided easily by displaying an estimation signal and a measured signal at a time.
-
公开(公告)号：US20050131303A1
公开(公告)日：2005-06-16
申请号：US11037339
申请日：2005-01-19
CPC分类号： A61B5/0059 , A61B5/0042 , A61B5/055 , A61B5/14552 , A61B5/14553 , A61B5/18 , A61B5/6814 , A61B5/7207 , A61B5/7228 , A61B6/03 , A61B6/507 , A61B2562/0219 , A61B2562/0233 , A61B2562/046
摘要： In an optical measurement system and imaging method adapted to measure in vivo information in a living body without harming the living body, light rays of a plurality of wavelengths which are modulated in intensity with a plurality of different frequencies are irradiated on a plurality of irradiation positions on the surface of a living body, and time-variable changes in living body transmitting light intensity levels corresponding to the respective wavelengths and the respective irradiation positions are measured at different positions on the surface of the living body. Light is utilized to image the results of the measurements, in which the measuring time is shortened by estimating fluctuation attributable to the living body, and the presence or absence of a change in measured signal can be decided easily by displaying an estimation signal and a measured signal at a time.
摘要翻译： 在适于测量活体内的体内信息而不损害生物体的光学测量系统和成像方法中，以多个不同频率强度调制的多个波长的光线照射在多个照射位置 在生物体的表面上，在生物体的表面的不同位置测量发射对应于各个波长和各个照射位置的光强度水平的生物体的随时间变化。 光被用于对测量结果进行成像，其中通过估计归因于生物体的波动来缩短测量时间，并且可以通过显示估计信号和测量的信号来容易地确定测量信号的变化的存在或不存在 信号一次。
-
-
-
-
-
-
-
-
-
搜索结果
43 条记录 (耗时 0.041 秒)
