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1. 发明专利

JP4230630B2 Mr equipment 有权
公开(公告)号：JP4230630B2
公开(公告)日：2009-02-25
申请号：JP34766599
申请日：1999-12-07
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：信之田坂
IPC分类号： A61B5/055
摘要： PROBLEM TO BE SOLVED: To provide a room for an MRI(magnetic resonance imager) with a ceiling not so high. SOLUTION: The room for photographing is made for the MRI 10 with a vertical type bore. The MRI 10 has a magnet 11 of the vertical type bore supported with columns 13, 13'. A subject 31 is conveyed from on the floor FL into the magnet 11. A pit 21 is made in the floor FL below the magnet 11 of the MRI 10.

2. 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.

3. 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.

4. 发明专利

JP4316126B2 Visual input supply device, signal acquisition device and an image capturing device 有权
公开(公告)号：JP4316126B2
公开(公告)日：2009-08-19
申请号：JP2000294187
申请日：2000-09-27
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：明今井 , 信之田坂 , 裕遠藤
IPC分类号： A61B5/055 , G01R33/28 , G03B15/00 , H04N5/225
摘要： PROBLEM TO BE SOLVED: To obtain a visual input/supplying device which has such a simple constitution that dissolves the enclosed feeling of a subject when the subject faces a wall and a signal acquiring device and image photographic device equipped with the device. SOLUTION: A visual input is projected upon a translucent plate 71 positioned on the head top side of the subject 31 to which an input to vision is supplied by means of projecting means 73 and 75 and the visual line of the subject 31 is directed toward the projected visual input through a visual line controlling means 77.

5. 发明专利

JP4219064B2 Magnetic resonance imaging apparatus 有权
公开(公告)号：JP4219064B2
公开(公告)日：2009-02-04
申请号：JP28794699
申请日：1999-10-08
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：明今井 , 信之田坂
IPC分类号： A61B5/055
摘要： PROBLEM TO BE SOLVED: To provide a magnetic resonance imaging equipment by which images are taken in the essential active conditions of the object and the transport equipment of the object for such magnetic resonance imaging equipment. SOLUTION: The object 31 is supported to raise at least upper body and magnetic resonance images are taken in such a condition. For that purpose, the object is transported to upper imaging space by driving supporting means of the object with elevator mechanism 41.

6. 发明专利

JP4051142B2 How region-of-interest setting, image processing apparatus and a medical image processing apparatus 有权
公开(公告)号：JP4051142B2
公开(公告)日：2008-02-20
申请号：JP30237498
申请日：1998-10-23
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：信之田坂
IPC分类号： A61B5/055 , A61B6/03 , G06T1/00
摘要： PROBLEM TO BE SOLVED: To automatically extract an interest region with a sufficient precision by calculating a threshold value by which the interest region is extracted, based o the photographing condition of an image and a picture element value histogram, and extracting a region in the image by using the threshold value, and making the region the interest region. SOLUTION: In step M1, a series of MR images for which the same region of a subject is photographed from different photographing locations at the same photographing angle are read. In step M2 a pretreatment for the MR images is performed. In step M3, if the photographed region of the image is the head, the process is advanced to M4, and if it is the torso, the process is advanced to M6. In step M4, a threshold value by which a brain parenchyma region in the image is extracted, is calculated. In step M5, using the calculated threshold value for the extraction of the brain parenchyma region, the brain parenchyma region (interest region) is set in the image. In step M6, a threshold value by which a spine region in the image is calculated. In step M7, if the angle of the torso image is axial, the process is advanced to step M8, and if it is sagittal, the process is advanced to step M9, and if it is coronal, the process is advanced to step M10. In steps M8, 9 and 10, the axial, sagittal and coronal spine regions (interest regions) are respectively set in the image by using the calculated threshold value for the extraction of the spine region.

7. 发明专利

JP4036987B2 Display parameter value setting method of medical images, medical diagnostic imaging apparatus and mri equipment 有权
公开(公告)号：JP4036987B2
公开(公告)日：2008-01-23
申请号：JP32767698
申请日：1998-11-18
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：信之田坂
IPC分类号： A61B6/03 , G06T1/00 , A61B5/055
摘要： PROBLEM TO BE SOLVED: To set display parameter values with which successive medical images can be displayed without giving any unnatural impression to a user. SOLUTION: The moving average value WW' of WW values of an object MR image to be set and an MR image present before it is calculated, the moving average value WW' of WW values of the object MR image and an MR image present behind it is calculated, and the mean value WW value of the moving average values WW' and WW'' in both the front and rear directions is set (ST5). When image pickup information on the MR image is Head/Axial, a WL value is not set, but when not, the moving average value WL' of the WL values of the object MR image and the MR image present before it is calculated, the moving average value WL'' of the WL values of the object image MR image and the MR image present behind it is calculated, and the mean WL value of the moving average values WL' and WL'' in both the front and rear directions is set (ST10).

8. 发明专利

JP3746158B2 Display parameter value setting method and mri apparatus of medical images 有权
公开(公告)号：JP3746158B2
公开(公告)日：2006-02-15
申请号：JP30230898
申请日：1998-10-23
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：信之田坂
IPC分类号： A61B5/055 , A61B6/03 , G06T1/00
摘要： PROBLEM TO BE SOLVED: To facilitate the setting of a display parameter suited to medical images. SOLUTION: The type of an MR image to be displayed (prescribed by an imaging part, an imaging method, the type of contrast, a shooting angle and the like) is judged [ST5], the SNR of the MR image is calculated [ST6] and coefficient parameters Pww and PwL corresponding to the type of the MR image and the SNR are read out from a coefficient parameter table. A WW value and a WL value are calculated [ST8] and the MR image is displayed [ST9]. If the WW value and the WL value are improper, the WW value and the WL value are corrected by a user to a proper value [ST10, ST11] to update the coefficient parameters Pww and PwL in the coefficient parameter table by a convergence function reflecting the frequency of correction Nt.

9. 发明专利

JP3699304B2 Magnetic resonance imaging apparatus 有权
公开(公告)号：JP3699304B2
公开(公告)日：2005-09-28
申请号：JP22909299
申请日：1999-08-13
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：鉄二塚元 , 信之田坂
IPC分类号： A61B5/055 , G01R33/48 , G01R33/54 , G01R33/567
CPC分类号： G01R33/4833 , G01R33/56509
摘要： In order to provide a magnetic resonance signal collection method and apparatus that suppress false images caused by motion of an imaged object, the order of selecting trajectories a - p is randomized. Alternatively, the angular difference is set at 90 DEG between first and next trajectories, and then new trajectories are defined so that the angular difference between adjacent trajectories is a repeatedly bisected angle in sequence.

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