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1. 发明专利

JP3662284B2 3-dimensional image display system 失效
公开(公告)号：JP3662284B2
公开(公告)日：2005-06-22
申请号：JP1609995
申请日：1995-02-02
申请人：ジーイー横河メディカルシステム株式会社
发明人：誠一原田 , 英二吉留
IPC分类号： G02B27/22 , H04N13/04

2. 发明专利

JP3538249B2 Mris equipment 失效
公开(公告)号：JP3538249B2
公开(公告)日：2004-06-14
申请号：JP623295
申请日：1995-01-19
申请人：ジーイー横河メディカルシステム株式会社
发明人：英二吉留 , 宏之椛沢
IPC分类号： G01R33/48 , A61B5/055 , G01N33/48 , G01R33/54
摘要： PURPOSE: To obtain the MR spectrum of an objective region having an arbitrary shape and to enhance an SIN ratio by estimating the frequency shift quantity of the MRS data of an extracted boxer and the MRS data of a reference boxer and correcting the frequencies of the MRS data of the respective boxers on the basis of the frequency shift quantity. CONSTITUTION: In an MRI apparatus equipped with a magnet assembly 1, a gradient magnetic field drive circuit 3, an RF power amplifier 4 and an amplifier 5, a predetermined region is subjected to MR imaging to obtain MRI data. Further, the predetermined region is subjected to CSI imaging to obtain MRS data and an MR image is displayed on the basis of the MRI data and the concern region in an objective region is set on the MR image by an operator. The frequency shift quantity of the MRS data of an extracted boxer and the MRS data of a reference boxer is estimated to correct the frequency of the MRS data of the extracted boxer and the addition operation of the MRS data of the respective boxers after correction is performed to form the MR spectrum of the objective region.

3. 发明专利

JP3472635B2 Mri equipment 失效
公开(公告)号：JP3472635B2
公开(公告)日：2003-12-02
申请号：JP25833794
申请日：1994-10-24
申请人：ジーイー横河メディカルシステム株式会社
发明人：英二吉留 , 和哉星野
IPC分类号： G01R33/54 , A61B5/055
摘要： PURPOSE: To reduce the time required for obtaining an object image by executing data collecting processing in parallel and arithmetic processing to process a part capable of previous operation, thereby reducing operation required after collecting all data. CONSTITUTION: According to a command from a computer 7, a sequence storing circuit 8 operates a grade magnetic field driving circuit 3 to generate a gradient magnetic field from a gradient magnetic field coil of a magnet assembly 1. A pre-amplifier 5 amplifies a NMR signal detected by a receiving coil, a phase detector 12 phase-detects a NMR signal, taking the output of an RF oscillating circuit 10 as a reference signal, an A/D converter 11 converts an analog signal of the phase detector to a digital signal, and the computer 7 conducts image reconfiguration processing for the digital signal to generate a target image. Echo data is grouped in the encoding direction, and data collecting processing for a certain group and arithmetic processing in the phase axial direction for the previously data collected group are executed in parallel.

4. 发明专利

JP3685544B2 Association methods and medical diagnostic imaging device of the image 失效
公开(公告)号：JP3685544B2
公开(公告)日：2005-08-17
申请号：JP12137396
申请日：1996-05-16
申请人：ジーイー横河メディカルシステム株式会社
发明人：英二吉留 , 信之田坂
IPC分类号： A61B6/03 , A61B5/055 , G06T1/00
摘要： PROBLEM TO BE SOLVED: To objectively coordinate first and second series of images by calculating the characteristic amounts of the respective images for forming the first and second series of images, normalizing the characteristic amounts, and coordinating the first series of images with the second series of images taking the normalized characteristic amount as an index. SOLUTION: An imaging device 1 of an MRI device 100 transfers the scan data of a tested body K to a processor 2, and an image data generating part 2b of the processor 2 generates image data of tomographic images from the scan data. The processing part 2c calculates the characteristic amounts of a series of images and normalizes the characteristic amounts, and a coordinate processing part 2d region-partitions the respective images according to the normalized characteristic amounts and coordinates the first series of images with the second series of images according to the normalized characteristic amount of each image. Further, a storage device 3 stores the scan data and the image data, and a display device 4 displays tomographic images or various kinds of information.

5. 发明专利

JP3510389B2 X-ray ct apparatus 失效
公开(公告)号：JP3510389B2
公开(公告)日：2004-03-29
申请号：JP17306595
申请日：1995-07-10
申请人：ジーイー横河メディカルシステム株式会社
发明人：英二吉留
IPC分类号： A61B6/00 , A61B6/03
CPC分类号： A61B6/541 , A61B6/032

6. 发明专利

JP3490173B2 High-frequency signal processing method and a high-frequency signal processing apparatus and a magnetic resonance imaging apparatus 失效
公开(公告)号：JP3490173B2
公开(公告)日：2004-01-26
申请号：JP4842995
申请日：1995-03-08
申请人：ジーイー横河メディカルシステム株式会社
发明人：英二吉留
IPC分类号： G01R33/20 , A61B5/055 , G01R33/3415
摘要： PURPOSE: To realize a high frequency signal-processing method and high frequency signal-processing equipment capable of deciding the directivity of plural coils, paralleling on a prescribed plane including the coil plane, in transmitting or receiving without changing the geometrical state in a static magnetic field space. CONSTITUTION: This high frequency signal-processing equipment has plural coils 201 and 202 paralleling in a plane including the coil plane and a directivity deciding means 30 to decide the directivity of electromagnetic wave transmission according to the embodiment of signal supply in supplying plural high frequency signals to the coils 201 and 202 respectively or to decide the directivity of electromagnetic wave reception according to the embodiment of addition of plural signals with respective origin to signals received by the coils 201 and 202.

7. 发明专利

JP3469651B2 Body cavity within the coil and mri equipment for Mri 失效
公开(公告)号：JP3469651B2
公开(公告)日：2003-11-25
申请号：JP22487894
申请日：1994-09-20
申请人：ジーイー横河メディカルシステム株式会社
发明人：英二吉留
IPC分类号： A61B5/055 , G01R33/32 , H01F5/00
摘要： PURPOSE: To change maximum-.directions of sensitivity and radiation by providing an MRI apparatus with a bird cage coil in which a specified number of elements are spread between first and second rings in a bird cage and two cables connected to two power supply points arranged at a specified interval of angle on the bird cage coil. CONSTITUTION: A bird cage coil 1 is formed by spreading four elements E1-E4 in a bird cage between a first ring R1 and a second ring R2 and capacitor are interposed between connection points of the first ring R1 and the second ring R2 and the elements E1-E4. Drawing points P and Q are arranged at an angle interval of 90 deg. or (360 deg./n)×m (m: integer of one or more) for capacitors C of the first ring R1. A coaxial cable 2p is connected to both ends of the capacitor C at the drawing point P through a matching circuit. A coaxial cable 2q is connected to both ends of the capacitor C at the drawing point Q through a matching circuit thereby enabling altering of the maximum direction of radiation.

8. 发明专利

JP3384897B2 Mri equipment 失效
公开(公告)号：JP3384897B2
公开(公告)日：2003-03-10
申请号：JP31787294
申请日：1994-12-21
申请人：ジーイー横河メディカルシステム株式会社
发明人：英二吉留 , 信之田坂
IPC分类号： G01R33/54 , A61B5/055
摘要： PURPOSE: To provide an MR imaging method and an MRI system capable of photographing a moving object and imaging by suppressing an artifact, by calculating phase correction quantity from the mutual relation of each view data for navigation and phase-correcting the each view data for imaging by the phase correction quantity. CONSTITUTION: By a magnet assembly 1 in an MRI system 100, firstly, imaging echoes are sampled via a phase detector 12, etc., while applying a phase encode gradient onto the y axis and a frequency encode gradient onto the x axis, respectively, to collect each view data for imaging. Secondly, a rewind gradient is applied to return the phase encode quantity to '0', and, while applying the encode gradient and the read-out gradient of the sampling number of which polarity is reversed, data for navigation in the frequency axis direction is collected by sampling navigation echoes. Then, the phase correction quantity is calculated from the mutual relation of data for navigation of each data to attempt reconstruction of the image.

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