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

IPC分类号： A61B6/00 ,  A61B6/03

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。

公开(公告)号：US08480614B2

公开(公告)日：2013-07-09

申请号：US11391259

申请日：2006-03-29

申请人： Satoru Ohishi ,  Takuya Sakaguchi

发明人： Satoru Ohishi ,  Takuya Sakaguchi

IPC分类号： A61M1/00

CPC分类号： A61M5/007 ,  A61M5/16827 ,  A61M5/16845 ,  A61M5/16895

摘要： A contrast medium injection management apparatus includes a measuring unit which repeatedly measures the injection amount of contrast medium injected from at least one contrast medium injection device into a subject to be examined, a cumulative injection amount calculating unit which repeatedly calculates a cumulative injection amount at the start of examination or after an arbitrary point of time from the injection amount, and a display unit which displays the cumulative injection amount.

摘要翻译： 造影剂注射管理装置包括：重复测量从至少一个造影剂注射装置注射到待检查对象的造影剂的注射量的测量单元，其累积喷射量计算单元重复计算在 开始检查或在从注入量起的任意时间点之后，以及显示单元，其显示累积喷射量。

公开(公告)号：US07702074B2

公开(公告)日：2010-04-20

申请号：US11680295

申请日：2007-02-28

申请人： Takuya Sakaguchi ,  Satoru Ohishi

发明人： Takuya Sakaguchi ,  Satoru Ohishi

IPC分类号： H05G1/64

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

摘要： An X-ray generation unit and an X-ray detection unit are controlled by an imaging control unit when two-dimensional images of a sample without a contrast and two-dimensional images of a sample with a contrast are imaged, so as to set imaging angles of these two-dimensional images to be different from each other, and a three-dimensional image of the sample is acquired by an image calculation unit on the basis a plurality of two-dimensional images without a contrast and a plurality of two-dimensional images with a contrast which are acquired under the control of the X-ray generation unit and the X-ray detection unit.

摘要翻译： 当没有对比度的样本的二维图像和具有对比度的样本的二维图像成像时，成像控制单元控制X射线产生单元和X射线检测单元，以便设置成像 这些二维图像的角度彼此不同，并且通过图像计算单元基于多个没有对比度的二维图像和多个二维图像来获取样本的三维图像 在X射线产生单元和X射线检测单元的控制下获取具有对比度的图像。

公开(公告)号：US07660383B2

公开(公告)日：2010-02-09

申请号：US11844048

申请日：2007-08-23

申请人： Takuya Sakaguchi ,  Michael D. Silver ,  Jingwu Yao ,  Mei Chen ,  Stefan Bozhilov ,  Satoru Ohishi

发明人： Takuya Sakaguchi ,  Michael D. Silver ,  Jingwu Yao ,  Mei Chen ,  Stefan Bozhilov ,  Satoru Ohishi

IPC分类号： A61B6/00

CPC分类号： G01N23/046 ,  G01N2223/419

摘要： A three dimensional image processing apparatus includes a storage unit storing data of images in different radiographing directions together with information concerning cardiac phases, a key image selection unit selecting key images from the images, a feature point designation unit designatting feature points on the selected key images in accordance with operation by an operator, and an image reconstruction unit reconstructing a three dimensional image from the images on the basis of positions of the designated feature points, wherein the key image selection unit selects, as the key images, a pair of images which are located at the same cardiac phase and whose radiographing directions are different by a substantially predetermined angle and images spaced apart from each other by an angle obtained by substantially equally dividing an interval between the pair of images by a predetermined number.

摘要翻译： 三维图像处理装置包括存储单元，其存储与不同的放射线方向的图像的数据以及关于心脏相位的信息，按键图像选择单元从图像中选择关键图像，特征点指定单元指定所选择的关键图像上的特征点 根据操作者的操作，以及图像重建单元，其基于所指定的特征点的位置，根据所述图像重建三维图像，其中，所述键图像选择单元选择一对图像，所述一对图像 位于相同的心脏相位，并且其放射照相方向以基本上预定的角度不同，并且将图像彼此间隔开通过基本上将该对图像之间的间隔除以预定数目而获得的角度。

公开(公告)号：US20090052613A1

公开(公告)日：2009-02-26

申请号：US11844048

申请日：2007-08-23

申请人： Takuya Sakaguchi ,  Michael D. Silver ,  Jingwu Yao ,  Mei Chen ,  Stefan Bozhilov ,  Satoru Ohishi

发明人： Takuya Sakaguchi ,  Michael D. Silver ,  Jingwu Yao ,  Mei Chen ,  Stefan Bozhilov ,  Satoru Ohishi

IPC分类号： G01N23/00

CPC分类号： G01N23/046 ,  G01N2223/419

摘要： A three dimensional image processing apparatus includes a storage unit storing data of images in different radiographing directions together with information concerning cardiac phases, a key image selection unit selecting key images from the images, a feature point designation unit designatting feature points on the selected key images in accordance with operation by an operator, and an image reconstruction unit reconstructing a three dimensional image from the images on the basis of positions of the designated feature points, wherein the key image selection unit selects, as the key images, a pair of images which are located at the same cardiac phase and whose radiographing directions are different by a substantially predetermined angle and images spaced apart from each other by an angle obtained by substantially equally dividing an interval between the pair of images by a predetermined number.

摘要翻译： 三维图像处理装置包括存储单元，其存储与不同的放射线方向的图像的数据以及关于心脏相位的信息，按键图像选择单元从图像中选择关键图像，特征点指定单元指定所选择的关键图像上的特征点 根据操作者的操作，以及图像重建单元，其基于所指定的特征点的位置，根据所述图像重建三维图像，其中，所述键图像选择单元选择一对图像，所述一对图像 位于相同的心脏相位，并且其放射照相方向以基本上预定的角度不同，并且将图像彼此间隔开通过基本上将该对图像之间的间隔除以预定数目而获得的角度。

公开(公告)号：US20070206724A1

公开(公告)日：2007-09-06

申请号：US11680295

申请日：2007-02-28

申请人： Takuya Sakaguchi ,  Satoru Ohishi

发明人： Takuya Sakaguchi ,  Satoru Ohishi

IPC分类号： G01N23/04

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

摘要： An X-ray generation unit and an X-ray detection unit are controlled by an imaging control unit when two-dimensional images of a sample without a contrast and two-dimensional images of a sample with a contrast are imaged, so as to set imaging angles of these two-dimensional images to be different from each other, and a three-dimensional image of the sample is acquired by an image calculation unit on the basis a plurality of two-dimensional images without a contrast and a plurality of two-dimensional images with a contrast which are acquired under the control of the X-ray generation unit and the X-ray detection unit.

摘要翻译： 当没有对比度的样本的二维图像和具有对比度的样本的二维图像成像时，成像控制单元控制X射线产生单元和X射线检测单元，以便设置成像 这些二维图像的角度彼此不同，并且通过图像计算单元基于多个没有对比度的二维图像和多个二维图像来获取样本的三维图像 在X射线产生单元和X射线检测单元的控制下获取具有对比度的图像。

公开(公告)号：US07187746B2

公开(公告)日：2007-03-06

申请号：US11165463

申请日：2005-06-24

申请人： Takuya Sakaguchi ,  Satoru Ohishi

发明人： Takuya Sakaguchi ,  Satoru Ohishi

IPC分类号： G01N23/00

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。

公开(公告)号：US20060224104A1

公开(公告)日：2006-10-05

申请号：US11391259

申请日：2006-03-29

申请人： Satoru Ohishi ,  Takuya Sakaguchi

发明人： Satoru Ohishi ,  Takuya Sakaguchi

IPC分类号： A61M1/00

CPC分类号： A61M5/007 ,  A61M5/16827 ,  A61M5/16845 ,  A61M5/16895

摘要： A contrast medium injection management apparatus includes a measuring unit which repeatedly measures the injection amount of contrast medium injected from at least one contrast medium injection device into a subject to be examined, a cumulative injection amount calculating unit which repeatedly calculates a cumulative injection amount at the start of examination or after an arbitrary point of time from the injection amount, and a display unit which displays the cumulative injection amount.

公开(公告)号：US08929633B2

公开(公告)日：2015-01-06

申请号：US12752518

申请日：2010-04-01

申请人： Satoru Ohishi

发明人： Satoru Ohishi

IPC分类号： G06K9/00 ,  A61B6/00 ,  A61B6/03

CPC分类号： A61B6/504 ,  A61B6/032 ,  A61B6/4441 ,  A61B6/466 ,  A61B6/481 ,  A61B6/503 ,  A61B6/507 ,  A61B6/5235 ,  A61B6/541

摘要： A diagnostic x-ray system includes a CT-image projection unit obtains a third perfusive-flow image by projecting a second perfusive-flow image obtained by computed tomography in the same direction as a projection direction in which an X-ray is projected toward a test subject to obtain a first perfusive-flow image. A positioning unit obtains positioning information by performing positioning of the first perfusive-flow image and the third perfusive-flow image. A perfusive-flow index calculation unit calculates a first perfusive-flow index from the first perfusive-flow image, and calculates a second perfusive-flow index from the third perfusive-flow image. A comparative-index calculation unit calculates a comparative index based on the first perfusive-flow index and the second perfusive-flow index, by comparing the first perfusive-flow index with the second perfusive-flow index, based on the positioning information obtained by the positioning unit.

摘要翻译： 诊断X射线系统包括CT图像投影单元，通过将计算机断层摄影获得的第二灌注流图像投影到与向X射线投影的X射线的投影方向相同的方向上获得第三灌注流图像 测试受试者获得第一个灌注流图像。 定位单元通过执行第一灌注流图像和第三灌注流图像的定位来获得定位信息。 灌注流指数计算单元从第一灌注流图像计算第一灌注流指数，并从第三灌注流图像计算第二灌注流指数。 比较指标计算单元基于第一灌注流指数和第二灌注流指数，通过将第一灌注流指数与第二灌注流指数进行比较，基于由第一灌注流指数 定位单元

公开(公告)号：US20100208969A1

公开(公告)日：2010-08-19

申请号：US12388788

申请日：2009-02-19

申请人： Satoru Ohishi ,  Clay Christopher Smith

发明人： Satoru Ohishi ,  Clay Christopher Smith

IPC分类号： G06K9/00 ,  G06K9/40

CPC分类号： A61B6/032 ,  A61B6/4441 ,  A61B6/5258 ,  A61B6/5264 ,  G06T5/003 ,  G06T7/73 ,  G06T2207/10081 ,  G06T2207/20201 ,  G06T2207/30004

摘要： The influences of the vibrations and the like of a rotational radiography system are corrected with respect to a projection image for each projection direction which contains an artificial artifact, and volume data containing only a ring artifact is generated by image reconstruction using the projection images. A ring center is determined by using this volume data, and polar coordinate conversion of an actual radiographed image is executed by using the ring center as an origin, thereby extracting a signal (ring artifact) parallel to an angular axis.

摘要翻译： 相对于包含人造假象的每个投射方向的投影图像校正旋转射线照相系统的振动等的影响，并且通过使用投影图像的图像重建来生成仅包含环形伪影的体数据。 通过使用该体数据确定环中心，并且通过使用环中心作为原点来执行实际拍摄图像的极坐标转换，从而提取与角轴平行的信号（环形伪像）。