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：US20100208870A1

公开(公告)日：2010-08-19

申请号：US12388947

申请日：2009-02-19

申请人： Yu Zou ,  Michael D. Silver ,  Satoru Ohishi ,  Kozo Sato

发明人： Yu Zou ,  Michael D. Silver ,  Satoru Ohishi ,  Kozo Sato

IPC分类号： G01N23/201 ,  G06K9/00

CPC分类号： A61B6/032 ,  A61B6/5282 ,  G06T5/003 ,  G06T5/50 ,  G06T2207/10081 ,  G06T2207/20224 ,  G06T2207/30004

摘要： Scattered radiation is estimated by using a reduced image generated from a projection image, and the scattered radiation image of the projection image is acquired by enlargement processing. The scattered radiation correction of the projection image is executed by subtracting the obtained scattered radiation image from the projection image. In addition, when a primary X-ray image and a scattered radiation image in each projection direction are to be obtained by sequential approximation calculation, a primary X-ray image which has already been identified in an adjacent projection direction is used as a first estimated value (initially set value) in next sequential calculation.

摘要翻译： 通过使用从投影图像生成的缩小图像来估计散射辐射，并且通过放大处理获取投影图像的散射辐射图像。 通过从投影图像中减去所获得的散射辐射图像来执行投影图像的散射辐射校正。 此外，当通过顺序近似计算要获得每个投影方向上的主X射线图像和散射辐射图像时，将已经在相邻投影方向上识别的主X射线图像用作第一估计 值（初始设定值）。

公开(公告)号：US07912180B2

公开(公告)日：2011-03-22

申请号：US12388947

申请日：2009-02-19

申请人： Yu Zou ,  Michael D. Silver ,  Satoru Ohishi ,  Kozo Sato

发明人： Yu Zou ,  Michael D. Silver ,  Satoru Ohishi ,  Kozo Sato

IPC分类号： G01N23/201 ,  G01N23/00

CPC分类号： A61B6/032 ,  A61B6/5282 ,  G06T5/003 ,  G06T5/50 ,  G06T2207/10081 ,  G06T2207/20224 ,  G06T2207/30004

摘要： Scattered radiation is estimated by using a reduced image generated from a projection image, and the scattered radiation image of the projection image is acquired by enlargement processing. The scattered radiation correction of the projection image is executed by subtracting the obtained scattered radiation image from the projection image. In addition, when a primary X-ray image and a scattered radiation image in each projection direction are to be obtained by sequential approximation calculation, a primary X-ray image which has already been identified in an adjacent projection direction is used as a first estimated value (initially set value) in next sequential calculation.

摘要翻译： 通过使用从投影图像生成的缩小图像来估计散射辐射，并且通过放大处理获取投影图像的散射辐射图像。 通过从投影图像中减去所获得的散射辐射图像来执行投影图像的散射辐射校正。 此外，当通过顺序近似计算要获得每个投影方向上的主X射线图像和散射辐射图像时，将已经在相邻投影方向上识别的主X射线图像用作第一估计 值（初始设定值）。

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：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.