公开(公告)号：US08761540B2

公开(公告)日：2014-06-24

申请号：US13160111

申请日：2011-06-14

申请人： Zhi Yang ,  Alexander Zamyatin ,  Satoru Ohishi ,  Anusha Muthu-Natarajan

发明人： Zhi Yang ,  Alexander Zamyatin ,  Satoru Ohishi ,  Anusha Muthu-Natarajan

IPC分类号： G06K9/40

CPC分类号： G06T11/008

摘要： Noise assessment is important to image quality evaluation as well as image processing. For example, the noise level estimation is used as criteria for terminating an iterative noise reduction process. To determine a meaningful noise level, the pixels in featureless regions are separated from the rest of the image. A new concept of pseudo-standard deviation (PSD) is introduced to automatically determine simple and reliable noise level estimates. Furthermore, a histogram of PSD is constructed with fine bins to calculate the moving average of the histogram. The first peak in filtered histogram gives the most representative noise measure as a desired approximation of true standard deviation.

摘要翻译： 噪声评估对图像质量评估和图像处理很重要。 例如，噪声水平估计被用作终止迭代降噪过程的标准。 为了确定有意义的噪声电平，无特征区域中的像素与图像的其余部分分离。 引入了伪标准偏差（PSD）的新概念，以自动确定简单可靠的噪声电平估计。 此外，PSD的直方图由精细仓组成，以计算直方图的移动平均值。 滤波直方图中的第一个峰值给出最具代表性的噪声测量值作为真正标准偏差的期望近似值。

公开(公告)号：US08721179B2

公开(公告)日：2014-05-13

申请号：US13181050

申请日：2011-07-12

申请人： Koichiro Watanabe ,  Satoru Ohishi ,  Masaki Kobayashi ,  Katsuie Ikawa

发明人： Koichiro Watanabe ,  Satoru Ohishi ,  Masaki Kobayashi ,  Katsuie Ikawa

IPC分类号： A61B6/04 ,  A61G13/04 ,  A61G13/02

CPC分类号： A61B5/0555 ,  A61B6/0407 ,  A61B6/0457 ,  A61B6/4441 ,  A61B6/467

摘要： A medical bed apparatus of an embodiment includes: a tiltable top board on which to place an examinee; a photographic mechanism configured to radiograph the examinee; an operation unit which is provided to a lateral side of the top board, and through which at least one of the top board and the photographic mechanism is operated by an operator; and a horizontally-holding mechanism configured to hold the operation unit horizontally when the top board tilts.

摘要翻译： 实施例的医疗床装置包括：可倾斜的顶板，用于放置被检体; 照相机构，被配置为对被检者进行射线照相; 操作单元，其设置在所述顶板的侧面，并且所述顶板和所述照相机构中的至少一个由操作者操作; 以及水平保持机构，其构造成当顶板倾斜时水平地保持操作单元。

公开(公告)号：US08411925B2

公开(公告)日：2013-04-02

申请号：US12700195

申请日：2010-02-04

申请人： Ko Fuchigami ,  Satoru Ohishi ,  Yoshiyasu Hayashi

发明人： Ko Fuchigami ,  Satoru Ohishi ,  Yoshiyasu Hayashi

IPC分类号： G06K9/00

CPC分类号： A61B5/02007 ,  A61B6/469 ,  A61B6/501 ,  G06F19/00 ,  G06T7/11 ,  G06T7/136 ,  G06T7/174 ,  G06T2207/10081 ,  G06T2207/20224 ,  G06T2207/30101

摘要： A first generating unit generates a plurality of blood vessel image data sets at the plurality of imaging angles by performing subtraction processing for the plurality of mask image data sets and the plurality of contrast image data sets. A second generating unit generates a blood vessel volume data set including an artery region, a vein region, and a capillary vessel region by performing reconstruction processing for the plurality of blood vessel image data sets. A third generating unit generates a capillary vessel volume data set associated with the capillary vessel region by removing the artery region and the vein region from the blood vessel volume data set. A fourth generating unit generates a capillary vessel image data set by performing three-dimensional image processing for the capillary vessel volume data set.

摘要翻译： 第一生成单元通过对多个掩模图像数据组和多个对比度图像数据组进行减法处理，在多个成像角度生成多个血管图像数据组。 第二生成单元通过对多个血管图像数据组进行重建处理，生成包括动脉区域，静脉区域和毛细血管区域的血管容量数据组。 第三生成单元通过从血管容积数据集中移除动脉区域和静脉区域而产生与毛细血管区域相关联的毛细血管容积体数据集。 第四生成单元通过对毛细血管容积数据组进行三维图像处理来生成毛细管血管图像数据。

公开(公告)号：US20130034283A1

公开(公告)日：2013-02-07

申请号：US13641717

申请日：2011-08-17

申请人： Satoru Ohishi

发明人： Satoru Ohishi

IPC分类号： G06K9/00

CPC分类号： A61B6/487 ,  A61B6/032 ,  A61B6/12 ,  A61B6/466 ,  A61B6/481 ,  A61B6/504 ,  A61B6/5211 ,  A61B6/5258 ,  G06T5/50 ,  G06T2207/10081 ,  G06T2207/10121 ,  G06T2207/30021 ,  G06T2207/30101

摘要： According to one embodiment, a medical image diagnosis apparatus includes a volume rendering image generation part, mask image-storage, real time fluoroscopic image generation part, subtraction image generation part, coil image generation part, and image composition part. The volume rendering image generation part generates, from volume data, a volume rendering image representing blood vessel information. The mask image-storage stores fluoroscopic mask images. The real time fluoroscopic image generation part acquires real time fluoroscopic images for each chronological sequence accompanying device insertion. The subtraction image generation part generates a subtraction image by subtraction processing on the fluoroscopic mask image stored in the mask image storage and the real time fluoroscopic image acquired for each chronological sequence. The coil image generation part generates a coil image from the fluoroscopic mask image. The image composition part generates a composite image of the volume rendering image, the subtraction image, and the coil image.

摘要翻译： 根据一个实施例，医用图像诊断装置包括体绘制图像生成部分，掩模图像存储，实时透视图像生成部分，减影图像生成部分，线圈图像生成部分和图像合成部分。 体绘制图像生成部件从卷数据生成表示血管信息的体绘制图像。 掩模图像存储器存储透视掩模图像。 实时透视图像生成部件随着设备插入的每个时间顺序获取实时透视图像。 减法图像生成部通过对存储在掩模图像存储器中的荧光掩模图像和对于每个时间顺序获取的实时荧光透视图像进行减法处理来生成减法图像。 线圈图像生成部件从透视掩模图像生成线圈图像。 图像合成部分生成体绘制图像，减影图像和线圈图像的合成图像。

公开(公告)号：US08351574B2

公开(公告)日：2013-01-08

申请号：US12707882

申请日：2010-02-18

申请人： Hisato Takemoto ,  Hajime Yoshida ,  Satoru Ohishi

发明人： Hisato Takemoto ,  Hajime Yoshida ,  Satoru Ohishi

IPC分类号： A61B6/03

CPC分类号： A61B6/466 ,  A61B5/02007 ,  A61B6/4014 ,  A61B6/4441 ,  A61B6/4464 ,  A61B6/501 ,  A61B17/12022 ,  A61B17/12113 ,  A61B17/1214 ,  A61B2017/00243 ,  G06T15/08

摘要： An X-ray diagnosis apparatus includes a display-image creating unit that creates a display image from three-dimensional medical image data such that a display image of three-dimensional medical image data substantially matches up with an anatomical structure on an acquired image by the X-ray diagnosis apparatus. Moreover, the X-ray diagnosis apparatus includes a display-image changing unit that changes a display image so as to maintain consistency of an anatomical structure in accordance with change in acquiring conditions by the X-ray diagnosis apparatus. Furthermore, the X-ray diagnosis apparatus includes a display unit that displays a display image that is at least one of created and changed by at least one of the display-image creating unit and the display-image changing unit.

摘要翻译： X射线诊断装置包括：显示图像生成单元，其从三维医用图像数据生成显示图像，使得三维医学图像数据的显示图像与所获取的图像上的解剖结构基本匹配， X光诊断仪。 此外，X射线诊断装置包括显示图像改变单元，其改变显示图像，以便根据X射线诊断装置的获取条件的变化来保持解剖结构的一致性。 此外，X射线诊断装置包括：显示单元，显示由至少一个显示图像创建单元和显示图像改变单元创建和改变的显示图像。

公开(公告)号：US08068665B2

公开(公告)日：2011-11-29

申请号：US11688441

申请日：2007-03-20

申请人： Satoru Ohishi

发明人： Satoru Ohishi

IPC分类号： G06K9/00 ,  H04N7/12 ,  G01D18/00

CPC分类号： G06K9/00214 ,  G06K2209/05

摘要： A 3D-image processing apparatus includes a storage unit which stores data of a first 3D image together with data of a second 3D image as a combining target with the first 3D image and data of a third 3D image relevant to the second 3D image, a misregistration calculating unit which calculates a misregistration between the first 3D image and the third 3D image, and an image combining unit which registers and combines the second 3D image with the first 3D image on the basis of the calculated misregistration.

摘要翻译： 3D图像处理装置包括存储单元，其将第一3D图像的数据与作为组合目标的第二3D图像的数据与第一3D图像和与第二3D图像相关的第三3D图像的数据进行存储， 计算第一3D图像和第三3D图像之间的对准不正确的对准计算单元，以及基于所计算的重合失调而将第二3D图像与第一3D图像进行登记和组合的图像合成单元。

公开(公告)号：US07844029B2

公开(公告)日：2010-11-30

申请号：US12608668

申请日：2009-10-29

申请人： Satoru Ohishi

发明人： Satoru Ohishi

IPC分类号： H05G1/10

CPC分类号： A61B6/481 ,  A61B6/4441 ,  A61B6/504 ,  A61B6/541

摘要： An X-ray diagnostic apparatus includes an X-ray generating unit which generates X rays, an X-ray detecting unit which detects X rays transmitted through a subject, an X-ray exposure operating unit which is operated by an operator, and a system control unit which controls the X-ray generating unit in order to start the generation of the X rays from the X-ray generating unit at a time point when a heart rate phase of the subject reaches a specified phase after the X-ray exposure operating unit is operated.

公开(公告)号：US20100215149A1

公开(公告)日：2010-08-26

申请号：US12707882

申请日：2010-02-18

申请人： Hisato TAKEMOTO ,  Hajime Yoshida ,  Satoru Ohishi

发明人： Hisato TAKEMOTO ,  Hajime Yoshida ,  Satoru Ohishi

IPC分类号： H05G1/64 ,  G06T15/00 ,  G06T15/40 ,  G06K9/00

CPC分类号： A61B6/466 ,  A61B5/02007 ,  A61B6/4014 ,  A61B6/4441 ,  A61B6/4464 ,  A61B6/501 ,  A61B17/12022 ,  A61B17/12113 ,  A61B17/1214 ,  A61B2017/00243 ,  G06T15/08

摘要： An X-ray diagnosis apparatus includes a display-image creating unit that creates a display image from three-dimensional medical image data such that a display image of three-dimensional medical image data substantially matches up with an anatomical structure on an acquired image by the X-ray diagnosis apparatus. Moreover, the X-ray diagnosis apparatus includes a display-image changing unit that changes a display image so as to maintain consistency of an anatomical structure in accordance with change in acquiring conditions by the X-ray diagnosis apparatus. Furthermore, the X-ray diagnosis apparatus includes a display unit that displays a display image that is at least one of created and changed by at least one of the display-image creating unit and the display-image changing unit.

摘要翻译： X射线诊断装置包括：显示图像生成单元，其从三维医用图像数据生成显示图像，使得三维医学图像数据的显示图像与所获取的图像上的解剖结构基本匹配， X光诊断仪。 此外，X射线诊断装置包括显示图像改变单元，其改变显示图像，以便根据X射线诊断装置的获取条件的变化来保持解剖结构的一致性。 此外，X射线诊断装置包括：显示单元，显示由至少一个显示图像创建单元和显示图像改变单元创建和改变的显示图像。

公开(公告)号：US07761136B2

公开(公告)日：2010-07-20

申请号：US11292355

申请日：2005-12-02

申请人： Satoru Ohishi ,  Kunio Aoki

发明人： Satoru Ohishi ,  Kunio Aoki

IPC分类号： A61B5/05

CPC分类号： A61B6/481 ,  A61B5/055 ,  A61B6/12 ,  A61B6/466 ,  A61B6/469 ,  A61B6/504 ,  G06F19/00 ,  G06F19/321 ,  G06F19/3468 ,  G06T2211/404

摘要： In a storing unit of a medical image processing apparatus, first 3D image corresponding to a first period and second 3D image data corresponding to a second period are stored. The first 3D image data corresponds to a period before contrast agent injection operation and/or therapeutic operation. The second 3D image data corresponds to a period after the contrast agent injection operation and/or therapeutic operation. A 3D subtracting unit subtracts the first 3D image data from the second 3D image data. In 3D subtraction image data, a portion having undergone a change due to contrast agent injection operation and/or therapeutic operation is emphasized. A pseudo 3D image data generating unit generates pseudo 3D image data on the basis of 3D subtraction image data. A displaying unit displays the pseudo 3D image data.

摘要翻译： 在医用图像处理装置的存储单元中，存储与第一期间对应的第一3D图像和与第二期间对应的第二3D图像数据。 第一3D图像数据对应于造影剂注射操作和/或治疗操作之前的时段。 第二3D图像数据对应于造影剂注射操作和/或治疗操作之后的时间段。 3D减法单元从第二3D图像数据中减去第一3D图像数据。 在3D减影图像数据中，强调了由于造影剂注射操作和/或治疗操作而发生变化的部分。 伪3D图像数据生成单元基于3D减法图像数据生成伪3D图像数据。 显示单元显示伪3D图像数据。

公开(公告)号：US07505549B2

公开(公告)日：2009-03-17

申请号：US10162670

申请日：2002-06-06

申请人： Satoru Ohishi ,  Kunio Aoki

发明人： Satoru Ohishi ,  Kunio Aoki

IPC分类号： A61B6/00

CPC分类号： A61B6/481 ,  A61B5/055 ,  A61B6/12 ,  A61B6/466 ,  A61B6/469 ,  A61B6/504 ,  G06F19/00 ,  G06F19/321 ,  G06F19/3468 ,  G06T2211/404

摘要： In a storing unit of a medical image processing apparatus, first 3D image corresponding to a first period and second 3D image data corresponding to a second period are stored. The first 3D image data corresponds to a period before contrast agent injection operation and/or therapeutic operation. The second 3D image data corresponds to a period after the contrast agent injection operation and/or therapeutic operation. A 3D subtracting unit subtracts the first 3D image data from the second 3D image data. In 3D subtraction image data, a portion having undergone a change due to contrast agent injection operation and/or therapeutic operation is emphasized. A pseudo 3D image data generating unit generates pseudo 3D image data on the basis of 3D subtraction image data. A displaying unit displays the pseudo 3D image data.