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公开(公告)号：US08767916B2
公开(公告)日：2014-07-01
申请号：US14057836
申请日：2013-10-18
申请人： FUJIFILM Corporation
发明人： Atsushi Hashimoto , Takuji Tada , Dai Murakoshi
IPC分类号： G01N23/04
CPC分类号： A61B6/484 , A61B6/4035 , A61B6/4291
摘要： An X-ray imaging apparatus comprises a first grid, a second grid, and an X-ray image detector. The first grid passes X-rays emitted from an X-ray source and produces a first periodic pattern image. The second grid opposes the first grid. The second grid partly blocks the first periodic pattern image and produces a second periodic pattern image with moiré fringes. The X-ray image detector detects the second periodic pattern image and produces image data. The X-ray image detector has pixels arranged in two dimensions in X and Y directions. The M pixels arranged in the Y direction form one group. The group is shifted in the Y direction by the number of the pixels less than M each time. A phase of an intensity modulated signal, composed of pixel values of the pixels in the each shifted group, is calculated. Thereby a differential phase image is produced.
摘要翻译： X射线成像装置包括第一格栅，第二格栅和X射线图像检测器。 第一格栅通过从X射线源发射的X射线并产生第一周期性图案图像。 第二个网格反对第一个网格。 第二格栅部分地阻挡第一周期性图案图像，并产生具有莫尔条纹的第二周期性图案图像。 X射线图像检测器检测第二周期性图案图像并产生图像数据。 X射线图像检测器具有在X和Y方向上二维排列的像素。 以Y方向排列的M个像素形成一组。 该组在Y方向移动每次小于M的像素数。 计算由每个移位组中的像素的像素值组成的强度调制信号的相位。 从而产生差分相位图像。
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公开(公告)号：US11406350B2
公开(公告)日：2022-08-09
申请号：US16359803
申请日：2019-03-20
申请人： FUJIFILM Corporation
发明人： Katsuya Yamamoto , Kaku Irisawa , Dai Murakoshi
IPC分类号： A61B8/08 , G01S7/52 , A61B34/20 , G01S15/89 , A61B17/34 , A61B5/00 , A61B8/00 , A61B5/06 , A61B8/06 , A61B90/00 , A61B18/26
摘要： Provided is a photoacoustic measurement device including: an ultrasound image generation unit that generates an ultrasound image on the basis of a detection signal of reflected ultrasonic waves generated by the transmission of ultrasonic waves; a puncture needle detection unit that detects a length direction of a puncture needle on the basis of the ultrasound image; and a controller that controls a steering direction of a sample gate which is a Doppler measurement target on the basis of the length direction of the puncture needle such that an angle θ formed between a straight line extending in the length direction of the puncture needle and a straight line extending in the steering direction of the sample gate satisfies 0°≤θ
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公开(公告)号：US10722263B2
公开(公告)日：2020-07-28
申请号：US15711307
申请日：2017-09-21
申请人： FUJIFILM Corporation
发明人： Dai Murakoshi , Kaku Irisawa
摘要： In a biopsy needle having a hollow tubular outer needle, an inner needle that is disposed in a hollow portion of the outer needle so as to be movable in the tube axis direction relative to the outer needle, and a recessed sample collection portion that is cut inward from a circumferential surface of the inner needle, an outer groove extending in the tube axis direction of the outer needle is provided on at least the distal end side and the rear end side of the sample collection portion in the inner needle, and a light guide member is disposed in the outer groove. At least a part of the light guide member is fixed by fillers filled in the outer groove.
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公开(公告)号：US11710290B2
公开(公告)日：2023-07-25
申请号：US16379313
申请日：2019-04-09
申请人： FUJIFILM Corporation
IPC分类号： A61B5/00 , G06V10/143 , A61B5/02 , G06T7/00 , G06T7/33 , G06T7/11 , G01N29/24 , G06T7/149 , A61B8/13 , A61B8/06 , G06F18/22 , G06V10/74 , G06V40/14
CPC分类号： G06V10/143 , A61B5/0095 , A61B5/02007 , A61B5/7425 , A61B8/06 , A61B8/13 , G01N29/2418 , G06F18/22 , G06T7/0016 , G06T7/11 , G06T7/149 , G06T7/337 , G06V10/761 , G01N2291/02466 , G06T2207/10132 , G06T2207/20024 , G06T2207/20221 , G06V40/14 , G06V2201/03 , G06V2201/031
摘要： A photoacoustic image evaluation apparatus includes a processor configured to acquire a first photoacoustic image generated at a first point in time and a second photoacoustic image generated at a second point in time before the first point in time, the first and second photoacoustic images being photoacoustic images generated by detecting photoacoustic waves generated inside a subject, who has been subjected to blood vessel regeneration treatment, by emission of light into the subject; acquire a blood vessel regeneration index, which indicates a state of a blood vessel by the regeneration treatment, based on a difference between a blood vessel included in the first photoacoustic image and a blood vessel included in the second photoacoustic image; and display the blood vessel regeneration index on a display.
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公开(公告)号：US10608405B2
公开(公告)日：2020-03-31
申请号：US16200130
申请日：2018-11-26
申请人： FUJIFILM Corporation
发明人： Hiroyasu Ishii , Dai Murakoshi , Takatsugu Wada
摘要： A solid-state laser device includes a resonator composed of a pair of mirrors, a laser rod disposed in the resonator, and a laser chamber. The resonator and the laser rod are disposed in a housing. The laser rod is inserted through a hole of the laser chamber and is supported in a state in which two end portions are exposed. An O-ring is disposed at an exposed root of at least one rod end portion exposed from the laser chamber. The solid-state laser device includes a cover member that is disposed on a rod side surface of the rod end portion between the O-ring and a rod end surface and that blocks incidence of stray light, which is generated in the housing, on the O-ring.
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公开(公告)号：US10243318B2
公开(公告)日：2019-03-26
申请号：US15275697
申请日：2016-09-26
申请人： FUJIFILM Corporation
发明人： Dai Murakoshi , Kaku Irisawa , Takuji Tada
摘要： In a laser device and a photoacoustic measurement device including the laser device, the intensity of light at each wavelength made independently controllable. The laser device includes a laser medium which has oscillation wavelengths at a first wavelength and a second wavelength with higher light emission efficiency than at the first wavelength, an excitation section, a first resonator, a second resonator, a Q-value change unit, and a control section. The control section oscillates light having the first wavelength through Q switching when a first delay time has elapsed after the excitation of the laser medium has been started in a case where the oscillation wavelength is the first wavelength, and oscillates light having the second wavelength through Q switching when a second delay time has elapsed after the excitation of the laser medium has been started in a case where the oscillation wavelength is the second wavelength.
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公开(公告)号：US08781069B2
公开(公告)日：2014-07-15
申请号：US13871350
申请日：2013-04-26
申请人： FUJIFILM Corporation
发明人： Dai Murakoshi , Toshitaka Agano , Wataru Ito , Shinji Imai
CPC分类号： A61B6/484 , A61B6/4233 , A61B6/4291 , A61B6/4464 , A61B6/502 , G01N23/046 , G01N2223/419 , G01N2223/612 , G01T1/246 , G21K2207/005
摘要： A radiographic phase-contrast imaging apparatus obtains a phase-contrast image using two gratings including the first grating and the second grating. The first and second gratings are adapted to form a moire pattern when a periodic pattern image formed by the first grating is superimposed on the second grating. Based on the moire pattern detected by the radiographic image detector, image signals of the fringe images, which correspond to pixel groups located at different positions with respect to a predetermined direction, are obtained by obtaining image signals of pixels of each pixel group, which includes pixels arranged at predetermined intervals in the predetermined direction, as the image signal of each fringe image, where the predetermined direction is a direction parallel to or intersecting a period direction of the moire pattern other than a direction orthogonal to the period direction. Then, a phase-contrast image is generated based on the obtained fringe images.
摘要翻译： 射线相位成像装置使用包括第一光栅和第二光栅的两个光栅获得相位对比度图像。 当由第一光栅形成的周期性图案图像叠加在第二光栅上时，第一和第二光栅适于形成莫尔图案。 基于由放射线照相图像检测器检测到的波纹图案，通过获得每个像素组的像素的图像信号，获得与相对于预定方向位于不同位置处的像素组对应的条纹图像的图像信号， 作为每个条纹图像的图像信号，其中预定方向是与波纹图案的周期方向平行或相交的方向，而不是与周期方向正交的方向。 然后，基于获得的条纹图像生成相位对比图像。
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公开(公告)号：US11504007B2
公开(公告)日：2022-11-22
申请号：US16357036
申请日：2019-03-18
申请人： FUJIFILM Corporation
发明人： Katsuya Yamamoto , Kaku Irisawa , Dai Murakoshi
摘要： A photoacoustic image generation apparatus includes: a puncture needle that generates photoacoustic waves; an ultrasound probe that detects the photoacoustic waves and reflected ultrasonic waves reflected by the transmission of ultrasonic waves; a processor that generates a color Doppler signal of a region of interest as a color Doppler measurement target, generates a photoacoustic image on the basis of the photoacoustic waves, and detects the position of a tip portion of the puncture needle on the basis of the photoacoustic image; and a controller that sets the region of interest such that the position of the tip portion of the puncture needle and a center position of the region of interest are separated from each other by a predetermined distance and sets the region of interest, following the movement of the tip portion of the puncture needle, in a state in which the distance is maintained.
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公开(公告)号：US11284861B2
公开(公告)日：2022-03-29
申请号：US16104791
申请日：2018-08-17
申请人： FUJIFILM Corporation
发明人： Kaku Irisawa , Dai Murakoshi , Tomoki Inoue
摘要： A first acoustic wave image is displayed in a first display color, and a second acoustic wave image is displayed in a second display color different from the first display color. A group of first menu icons for designating a process to be performed on the first acoustic wave image and a group of second menu icons for designating a process to be performed on the second acoustic wave image are displayed on menu icon display means. The group of first menu icons is displayed in the first display color, and the group of second menu icons is displayed in the second display color.
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公开(公告)号：US10709337B2
公开(公告)日：2020-07-14
申请号：US15636947
申请日：2017-06-29
申请人： FUJIFILM Corporation
发明人： Dai Murakoshi , Kaku Irisawa , Tetsuro Ebata , Shoji Hara
摘要： In a photoacoustic measurement apparatus and a photoacoustic measurement system, blood flow information in a desired region can be generated using a photoacoustic image. A light source emits measurement light. A probe detects a photoacoustic wave generated in a subject after measurement light is emitted to the subject in each of the avascularized condition in which the subject is avascularized and the non-avascularized condition in which the subject is not avascularized. Photoacoustic image generation unit generates a photoacoustic image based on the detection signal of the photoacoustic wave. Blood flow information generation unit generates blood flow information based on the signal value of a photoacoustic image in a region of interest set in the photoacoustic image.
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