公开(公告)号：US5892359A

公开(公告)日：1999-04-06

申请号：US794590

申请日：1997-02-03

申请人： Masao Yui ,  Kiyomi Mori ,  Arturo Calderon ,  Shigehide Kuhara

发明人： Masao Yui ,  Kiyomi Mori ,  Arturo Calderon ,  Shigehide Kuhara

IPC分类号： A61B5/055 ,  G01R33/385 ,  H01F7/20 ,  G01N3/00

CPC分类号： G01R33/385

摘要： An active shield type gradient coil apparatus comprises main coils for generating a gradient magnetic field and shield coils for generating a magnetic field to reduce the leak magnetic field from the main coils. In the active shield type gradient coil apparatus, a stimulation output section for outputting stimulation to a subject is incorporated. In this incorporation, the main coils are arranged at the outside of an area sandwiched between the stimulation output section and the subject such that the simulation can be transmitted to the subject from the stimulation output section without being blocked by the main coils. By this arrangement, both the use of the active shield type as the gradient coil apparatus and good transmission of stimulation to the subject can be realized.

摘要翻译： 有源屏蔽型梯度线圈装置包括用于产生梯度磁场的主线圈和用于产生磁场的屏蔽线圈，以减少来自主线圈的泄漏磁场。 在有源屏蔽型梯度线圈装置中，包括用于向对象输出刺激的刺激输出部。 在这种结合中，主线圈布置在夹在刺激输出部分和被检体之间的区域的外侧，使得模拟可以从刺激输出部分被传送到被检体而不被主线圈阻挡。 通过这种布置，可以实现使用主动屏蔽型作为梯度线圈装置，并且可以实现对对象的刺激的良好传输。

公开(公告)号：US5771893A

公开(公告)日：1998-06-30

申请号：US524257

申请日：1995-09-06

申请人： Yoshimori Kassai ,  Shoichi Kanayama ,  Shigehide Kuhara ,  Arturo Calderon

发明人： Yoshimori Kassai ,  Shoichi Kanayama ,  Shigehide Kuhara ,  Arturo Calderon

IPC分类号： G01R33/48 ,  A61B5/055 ,  G01R33/56 ,  G01R33/563

CPC分类号： G01R33/4806 ,  G01R33/5616 ,  G01R33/563

摘要： A nuclear magnetic resonance imaging scheme suitable for an imaging of a physiological function information on a living body. The scheme uses a pulse sequence for realizing a first imaging scheme for obtaining the blood vessel image and a second imaging scheme for obtaining the physiological function image such as a brain function image by a single execution of the pulse sequence, where the first imaging scheme is executed before the second imaging scheme by controlling resolutions and imaging regions for the respective imaging schemes appropriately. The pulse sequence can also realize a third imaging scheme for obtaining the physical shape image, which is to be executed between the first imaging scheme and the second imaging scheme. The physiological function image can be obtained by selecting valid data from the image data acquired with/without stimulation or load by using the t-test, and determining active portions from the selected valid data by using the paired t-test. The physiological function image can then be displayed in superposition with the blood vessel image and/or the physical shape image.

公开(公告)号：US06002254A

公开(公告)日：1999-12-14

申请号：US16267

申请日：1998-01-30

申请人： Yoshimori Kassai ,  Shoichi Kanayama ,  Shigehide Kuhara ,  Arturo Calderon

发明人： Yoshimori Kassai ,  Shoichi Kanayama ,  Shigehide Kuhara ,  Arturo Calderon

IPC分类号： G01R33/48 ,  A61B5/055 ,  G01R33/56 ,  G01R33/563 ,  G01V3/00

CPC分类号： G01R33/4806 ,  G01R33/5616 ,  G01R33/563

摘要： A nuclear magnetic resonance imaging scheme suitable for an imaging of a physiological function information on a living body. The scheme uses a pulse sequence for realizing a first imaging scheme for obtaining the blood vessel image and a second imaging scheme for obtaining the physiological function image such as a brain function image by a single execution of the pulse sequence, where the first imaging scheme is executed before the second imaging scheme by controlling resolutions and imaging regions for the respective imaging schemes appropriately. The pulse sequence can also realize a third imaging scheme for obtaining the physical shape image, which is to be executed between the first imaging scheme and the second imaging scheme. The physiological function image can be obtained by selecting valid data from the image data acquired with/without stimulation or load by using the t-test, and determining active portions from the selected valid data by using the paired t-test. The physiological function image can then be displayed in superposition with the blood vessel image and/or the physical shape image.

摘要翻译： 一种核磁共振成像方案，适用于对生物体的生理功能信息的成像。 该方案使用脉冲序列来实现用于获得血管图像的第一成像方案和用于通过单次执行脉搏序列来获得诸如脑功能图像的生理功能图像的第二成像方案，其中第一成像方案是 通过适当地控制各个成像方案的分辨率和成像区域，在第二成像方案之前执行。 脉冲序列还可以实现用于获得在第一成像方案和第二成像方案之间执行的物理形状图像的第三成像方案。 可以通过使用t检验从通过或不使用刺激或负载获取的图像数据中选择有效数据，并且通过使用配对t检验从选择的有效数据中确定活动部分来获得生理功能图像。 然后可以与血管图像和/或物理形状图像重叠显示生理功能图像。

公开(公告)号：US08374410B2

公开(公告)日：2013-02-12

申请号：US12525315

申请日：2009-02-12

申请人： Shigeharu Ohyu ,  Hitoshi Yamagata ,  Arturo Calderon ,  Atsuko Sugiyama

发明人： Shigeharu Ohyu ,  Hitoshi Yamagata ,  Arturo Calderon ,  Atsuko Sugiyama

IPC分类号： G06K9/00

CPC分类号： G06T11/00 ,  A61B6/463 ,  A61B6/5235 ,  A61B6/5247 ,  G06T7/33 ,  G06T2207/10072 ,  G06T2207/30061 ,  G06T2207/30101

摘要： A reference landmark extracting and pairing unit extracts reference landmarks from each of two three-dimensional medical images and forms reference landmark pairs, while a general landmark extracting unit extracts general landmarks. The landmark pair forming unit forms general landmark pairs using of a distance between each of the reference landmarks and the general landmarks, and also forms general landmark pairs from the remaining general landmarks using the distances from the general landmarks included in the general landmark pairs. A coordinate transformation parameter calculating unit calculates coordinate transformation parameters, based on the positional information of the reference landmark pairs and the general landmark pairs. A corresponding sectional view creating unit creates corresponding sectional views for the two three-dimensional medical images based on the coordinate transformation parameters, and by the display controlling unit the two corresponding sectional views are displayed on a displaying unit.

摘要翻译： 参考标记提取和配对单元从两个三维医学图像中的每一个提取参考地标并形成参考地标对，而一般地标提取单元提取一般地标。 地标对形成单元使用每个参考地标和一般地标之间的距离形成一般地标对，并且还使用与一般地标对中包括的一般地标的距离，从剩余的一般地标形成一般地标对。 坐标变换参数计算单元基于参考地标对和一般地标对的位置信息来计算坐标变换参数。 相应的剖视图生成单元基于坐标变换参数对两个三维医学图像生成相应的剖视图，并且由显示控制单元在显示单元上显示两个对应的截面图。

公开(公告)号：US20110158487A1

公开(公告)日：2011-06-30

申请号：US12525315

申请日：2009-02-12

申请人： Shigeharu Ohyu ,  Hitoshi Yamagata ,  Arturo Calderon ,  Atsuko Sugiyama

发明人： Shigeharu Ohyu ,  Hitoshi Yamagata ,  Arturo Calderon ,  Atsuko Sugiyama

IPC分类号： G06K9/00

CPC分类号： G06T11/00 ,  A61B6/463 ,  A61B6/5235 ,  A61B6/5247 ,  G06T7/33 ,  G06T2207/10072 ,  G06T2207/30061 ,  G06T2207/30101

摘要： A reference landmark extracting and pairing unit extracts reference landmarks from each of two three-dimensional medical images and forms reference landmark pairs, while a general landmark extracting unit extracts general landmarks. The landmark pair forming unit forms general landmark pairs using of a distance between each of the reference landmarks and the general landmarks, and also forms general landmark pairs from the remaining general landmarks using the distances from the general landmarks included in the general landmark pairs. A coordinate transformation parameter calculating unit calculates coordinate transformation parameters, based on the positional information of the reference landmark pairs and the general landmark pairs. A corresponding sectional view creating unit creates corresponding sectional views for the two three-dimensional medical images based on the coordinate transformation parameters, and by the display controlling unit the two corresponding sectional views are displayed on a displaying unit.

摘要翻译： 参考标记提取和配对单元从两个三维医学图像中的每一个提取参考地标并形成参考地标对，而一般地标提取单元提取一般地标。 地标对形成单元使用每个参考地标和一般地标之间的距离形成一般地标对，并且还使用与一般地标对中包括的一般地标的距离，从剩余的一般地标形成一般地标对。 坐标变换参数计算单元基于参考地标对和一般地标对的位置信息来计算坐标变换参数。 相应的剖视图生成单元基于坐标变换参数对两个三维医学图像生成相应的剖视图，并且由显示控制单元在显示单元上显示两个对应的截面图。

公开(公告)号：US07369691B2

公开(公告)日：2008-05-06

申请号：US10803930

申请日：2004-03-19

申请人： Yasuhira Kondo ,  Shigeharu Ohyu ,  Hitoshi Yamagata ,  Arturo Calderon ,  Tomohiro Kawasaki ,  Atsuko Sugiyama

发明人： Yasuhira Kondo ,  Shigeharu Ohyu ,  Hitoshi Yamagata ,  Arturo Calderon ,  Tomohiro Kawasaki ,  Atsuko Sugiyama

IPC分类号： G06K9/00

CPC分类号： G06T15/08 ,  G06T7/12 ,  G06T2207/30172 ,  G06T2215/06

摘要： Using medical three-dimensional image data, at least one of a volume-rendering image, a flat reformatted image on an arbitrary section, a curved reformatted image, and an MIP (maximum value projection) image is prepared as a reference image. Vessel center lines are extracted from this reference image, and at least one of a vessel stretched image based on the center line and a perpendicular sectional image substantially perpendicular to the center line is prepared. The shape of vessels is analyzed on the basis of the prepared image, and the prepared stretched image and/or the perpendicular sectional image is compared with the reference image, and the result is displayed together with the images. Display of the reference image with the stretched image or the perpendicular sectional image is made conjunctive. Correction of the center line by the operator and automatic correction of the image resulting from the correction are also possible.

摘要翻译： 使用医疗三维图像数据，准备体绘制图像，任意部分上的平坦重新格式化图像，曲线重新格式化图像和MIP（最大值投影）图像中的至少一个作为参考图像。 从该参考图像中提取容器中心线，并且准备基于中心线的容器拉伸图像和基本上垂直于中心线的垂直截面图像中的至少一个。 基于制备的图像分析容器的形状，并将制备的拉伸图像和/或垂直截面图像与参考图像进行比较，并且结果与图像一起显示。 使用拉伸图像或垂直截面图像显示参考图像是连接的。 操作人员对中心线进行校正，校正后的图像进行自动校正也是可能的。

公开(公告)号：US6076004A

公开(公告)日：2000-06-13

申请号：US708667

申请日：1996-09-05

申请人： Shoichi Kanayama ,  Arturo Calderon

发明人： Shoichi Kanayama ,  Arturo Calderon

IPC分类号： A61B5/055 ,  G01R33/56 ,  G06T1/00

CPC分类号： A61B5/7257 ,  A61B5/055 ,  G01R33/56 ,  G01R33/5608 ,  Y10S128/92 ,  Y10S128/922

摘要： Cross-correlation between a first magnetic resonance image as a reference image and a second magnetic resonance image to be adjusted relative to the first magnetic resonance image is taken, deviation of the second magnetic resonance image to the first magnetic resonance image as correction values is calculated, and the second magnetic resonance image based on the correction values is corrected.

摘要翻译： 将作为参考图像的第一磁共振图像与要相对于第一磁共振图像进行调整的第二磁共振图像之间的相互关系作为校正值计算第二磁共振图像与第一磁共振图像的偏差 并且校正基于校正值的第二磁共振图像。