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公开(公告)号：US09795352B2
公开(公告)日：2017-10-24
申请号：US12688255
申请日：2010-01-15
CPC分类号： A61B6/504 , A61B6/4441 , A61B6/481 , A61B6/507
摘要： An image processing apparatus includes a storage unit which stores data of X-ray projection images generated through a angiographic imaging sequence, a generation unit which, based on the data, generates a reference time density curve concerning a reference region which is set as a blood supply region, and time density curves concerning perfusion regions which are set as a blood supplied region, a measurement unit which measures delay times for which a contrast medium reaches the perfusion regions from the reference region, from relationships between the reference time density curve and the time density curves, a calculation unit which calculates, respectively for the perfusion regions, first indices expressing correlations of the time density curves to the reference time density curve within a period determined on the basis of the delay times, and a first image generation unit which generates a first image expressing spatial distribution of the first indices.
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2.发明授权公开(公告)号：US09655567B2
公开(公告)日：2017-05-23
申请号：US12696478
申请日：2010-01-29
申请人： Makoto Takanaka , Takuya Sakaguchi , Masanori Matsumoto , Masaki Kobayashi , Satoshi Yamashita , Shumpei Oohashi
发明人： Makoto Takanaka , Takuya Sakaguchi , Masanori Matsumoto , Masaki Kobayashi , Satoshi Yamashita , Shumpei Oohashi
摘要： An X-ray image generating unit alternately generates X-ray images each obtained by radiating X-rays having a higher level of energy and X-ray images each obtained by radiating X-rays having a lower level of energy. Further, every time an X-ray image has been generated by the X-ray image generating unit, a dual energy subtraction image generating unit generates a dual energy subtraction image by using the X-ray image that has just been generated and the X-ray image generated immediately preceding the X-ray image.
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公开(公告)号：US09259199B2
公开(公告)日：2016-02-16
申请号：US13117578
申请日：2011-05-27
申请人： Jingwu Yao , Takuya Sakaguchi
发明人： Jingwu Yao , Takuya Sakaguchi
CPC分类号： A61B6/481 , A61B6/12 , A61B6/487 , A61B6/504 , A61B6/507 , A61B6/5217 , G06T7/0016 , G06T7/136 , G06T2207/10121 , G06T2207/20044 , G06T2207/30021 , G06T2207/30101
摘要： According to one embodiment, an image processing apparatus includes a storage unit, a specifying unit, an extraction unit and a setting processing unit. The storage unit stores first X-ray image data in which a blood vessel of an object is not visually enhanced, and second X-ray image data in which the blood vessel is visually enhanced. The specifying unit specifies a catheter image included in the first fluoroscopic image by performing image processing of the first X-ray image data. The extraction unit extracts a blood vessel region included in the second fluoroscopic image by performing image processing of the second X-ray image data. The setting processing unit sets a region of interest based on the position of end point of the catheter.
摘要翻译： 根据一个实施例，图像处理装置包括存储单元，指定单元，提取单元和设置处理单元。 存储单元存储其中目标物体的血管没有视觉增强的第一X射线图像数据和视觉上增强血管的第二X射线图像数据。 指定单元通过执行第一X射线图像数据的图像处理来指定包括在第一透视图像中的导管图像。 提取单元通过执行第二X射线图像数据的图像处理来提取包括在第二透视图像中的血管区域。 设定处理单元基于导管的终点的位置来设定感兴趣区域。
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公开(公告)号：US09202301B2
公开(公告)日：2015-12-01
申请号：US13593679
申请日：2012-08-24
CPC分类号： G06T15/00 , A61B6/022 , A61B6/12 , A61B6/466 , A61B6/487 , A61B6/504 , H04N13/00 , H04N13/117 , H04N13/128 , H04N13/361 , H04N2013/0081
摘要： A medical image display apparatus according to an embodiment includes a display unit, a generating unit, and a display controlling unit. The display unit three-dimensionally displays a group of disparity images generated from three-dimensional medical image data. The generating unit determines a display position of the group of disparity images to be three-dimensionally displayed on the display unit in terms of a depth direction with respect to a display surface of the display unit and generates the group of disparity images from the three-dimensional medical image data so as to realize the determined display position. The display controlling unit three-dimensionally displays the group of disparity images and two-dimensionally displays a medical image different from the group of disparity images, on the display unit.
摘要翻译： 根据实施例的医用图像显示装置包括显示单元，生成单元和显示控制单元。 显示单元三维地显示从三维医学图像数据生成的一组视差图像。 生成单元根据相对于显示单元的显示表面的深度方向来确定要在显示单元上三维显示的视差图像组的显示位置，并且从三维显示单元生成视差图像组， 以便实现确定的显示位置。 显示控制单元在显示单元上三维地显示视差图像组并且二维地显示与视差图像组不同的医学图像。
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公开(公告)号：US08934604B2
公开(公告)日：2015-01-13
申请号：US12237675
申请日：2008-09-25
申请人： Takuya Sakaguchi
发明人： Takuya Sakaguchi
CPC分类号： A61B6/032 , A61B5/02007 , A61B6/4441 , A61B6/461 , A61B6/5211
摘要： In an image display apparatus of this invention, an image creation unit creates a plurality of cross-sectional images and a projected image from the volume data acquired at a CT volume data acquisition unit. The plurality of cross-sectional images and projected image are displayed on a monitor. When a specific point on the plurality of cross-sectional images displayed on the monitor is clicked at an operation unit, a line is displayed on the projected image displayed on the monitor according to the click.
摘要翻译： 在本发明的图像显示装置中，图像创建单元从在CT体积数据获取单元获取的体数据创建多个横截面图像和投影图像。 多个横截面图像和投影图像显示在监视器上。 当在操作单元处点击监视器上显示的多个横截面图像上的特定点时，根据点击在显示器上显示的投影图像上显示行。
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公开(公告)号：US08509511B2
公开(公告)日：2013-08-13
申请号：US12237745
申请日：2008-09-25
申请人： Takuya Sakaguchi
发明人： Takuya Sakaguchi
IPC分类号： G06K9/00
CPC分类号： A61B6/5235 , A61B6/032 , A61B6/12 , A61B6/4233 , A61B6/466 , A61B6/481 , A61B6/504 , A61B6/541 , G06T7/70 , G06T2207/10116 , G06T2207/30021 , G06T2207/30048 , G06T2207/30101
摘要： In an X-ray diagnostic apparatus, a volume 3D image in which a desired blood vessel center line has been extracted is stored in a CT 3D image storage unit, and an X-ray two-dimensional image updated in real time is stored in an X-ray 2D image storage unit. The three-dimensional image is aligned with the X-ray two-dimensional image in an alignment unit. Further, a distal end position of a device and a position thereof after a predetermined time are searched for in a search unit, and the distal end position of the device in the three-dimensional image is calculated in a computing unit. Then, a cross-sectional image of the three-dimensional image is displayed on a monitor.
摘要翻译： 在X射线诊断装置中，在CT 3D图像存储单元中存储了其中提取了期望的血管中心线的体积3D图像，并将实时更新的X射线二维图像存储在 X射线2D图像存储单元。 三维图像与对准单元中的X射线二维图像对准。 此外，在搜索单元中搜索设备的远端位置和在预定时间之后的位置，并且在计算单元中计算三维图像中的设备的远端位置。 然后，三维图像的横截面图像显示在监视器上。
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公开(公告)号：US20100104167A1
公开(公告)日：2010-04-29
申请号：US12605857
申请日：2009-10-26
申请人： Takuya Sakaguchi , Kyojiro Nambu , Hisato Takemoto
发明人： Takuya Sakaguchi , Kyojiro Nambu , Hisato Takemoto
IPC分类号： G06K9/62
CPC分类号： A61B6/12 , A61B5/0402 , A61B6/4441 , A61B6/461 , A61B6/481 , A61B6/486 , A61B6/504 , A61B6/5205 , G06T7/0012 , G06T7/11 , G06T7/246 , G06T2207/10116 , G06T2207/10121 , G06T2207/20104 , G06T2207/20164 , G06T2207/30021 , G06T2207/30048 , G06T2207/30052 , G06T2207/30101 , G06T2207/30204
摘要： A marker-coordinate detecting unit detects coordinates of a stent marker on a new image when the new image is stored in an image-data storage unit; and then a correction-image creating unit creates a correction image from the new image through, for example, image transformation processing, so as to match up the detected coordinates with reference coordinates that are coordinates of the stent marker already detected by the marker-coordinate detecting unit in a first frame. An image post-processing unit then creates an image for display by performing post-processing on the correction image created by the correction-image creating unit, the post-processing including high-frequency noise reduction filtering-processing, low-frequency component removal filtering-processing, and logarithmic-image creating processing; and then a system control unit performs control of displaying a moving image of an enlarged image of a set region that is set in the image for display, together with an original image.
摘要翻译： 当新图像被存储在图像数据存储单元中时，标记坐标检测单元检测新图像上的支架标记的坐标; 然后校正图像创建单元通过例如图像变换处理从新图像创建校正图像，以便将检测到的坐标与作为标记坐标已经检测到的支架标记的坐标的参考坐标相匹配 检测单元。 然后，图像后处理单元通过对由校正图像创建单元创建的校正图像执行后处理来创建用于显示的图像，后处理包括高频噪声降低滤波处理，低频成分去除滤波 处理和对数图像创建处理; 然后系统控制单元与原始图像一起执行显示设置在要显示的图像中的设置区域的放大图像的运动图像的控制。
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公开(公告)号：US20060034424A1
公开(公告)日：2006-02-16
申请号：US11257091
申请日：2005-10-25
申请人： Takuya Sakaguchi , Akira Tsukamoto
发明人： Takuya Sakaguchi , Akira Tsukamoto
IPC分类号： G01N23/04
CPC分类号： G01N23/20 , A61B6/4014 , A61B6/503 , A61B6/5282
摘要： A method for obtaining an X-ray image for an X-ray diagnosis apparatus including plurality of imaging systems, including: collecting first scatter data using a first X-ray detector after an X-ray is irradiated from a first X-ray tube in a first imaging system; collecting second scatter data using a second X-ray detector after an X-ray is irradiated from a second X-ray tube in a second imaging system; collecting first image data including a scatter component using X-ray detectors after an X-ray is irradiated from a third X-ray tube in the first imaging system; collecting second image data including a scatter component using X-ray detectors after an X-ray is irradiated from a fourth X-ray tube in the second imaging system; and obtaining X-ray images for the first and second imaging systems by subtracting the first and second scatter data from the first and second image data including a scatter component, respectively.
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公开(公告)号：US20050286679A1
公开(公告)日：2005-12-29
申请号：US11165463
申请日：2005-06-24
申请人： Takuya Sakaguchi , Satoru Ohishi
发明人： Takuya Sakaguchi , Satoru Ohishi
CPC分类号： A61B6/032 , A61B6/4014 , A61B6/4021 , A61B6/4441 , A61B6/541
摘要： Projection data are obtained by using a method for imaging by rotating the first imaging system having an X-ray generating unit 1a and the second imaging system having an X-ray generating unit 1b. The obtained projection data are subjected to a reconstruction process to generate X-ray image data. In this case, a relative angle η0 formed between the imaging systems is setup according to a palmic period T0 of a subject and a rotation velocity Vr of the imaging systems. Thus, the projection data from more directions at a predetermined palmic time-phase are collected without overlapping.
摘要翻译： 通过旋转具有X射线产生单元1a的第一成像系统和具有X射线产生单元1b的第二成像系统，通过使用用于成像的方法来获得投影数据。 对获得的投影数据进行重构处理，生成X射线图像数据。 在这种情况下，根据被摄体的时间周期T 0和成像系统的旋转速度Vr来建立在成像系统之间形成的相对角度θ0。 因此，在不重叠的情况下收集在预定的时间相位上来自更多方向的投影数据。
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公开(公告)号：US06696687B1
公开(公告)日：2004-02-24
申请号：US09550800
申请日：2000-04-18
IPC分类号： H01L3100
CPC分类号： H04N5/361 , H01L27/14658 , H04N5/374 , H04N5/378
摘要： A radiation detector has a plurality of charge conversion elements which are laid out in a matrix and convert incoming radiation into charges, a plurality of capacitors for storing the charges generated by the charge conversion elements, and charge read elements for reading the charges stored in the capacitors. Signals other than signals originated to charges stored in the capacitors, which are produced upon, e.g., turning on/off the charge read elements are canceled by adjustment means, thus improving the S/N ratio.
摘要翻译： 放射线检测器具有多个电荷转换元件，其被布置在矩阵中并将入射的辐射转换为电荷，用于存储由电荷转换元件产生的电荷的多个电容器和用于读取存储在电荷转换元件中的电荷的电荷读取元件 电容器 由信号产生的信号，除了通过调整装置而被消除的情况下，存储在电容器中的电荷，例如开/关电荷读取元件，从而提高S / N比。
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