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1. 发明申请

US20060267587A1 RF receiving coil apparatus and magnetic resonance imaging apparatus 有权
标题翻译： RF接收线圈装置和磁共振成像装置
公开(公告)号：US20060267587A1
公开(公告)日：2006-11-30
申请号：US11438524
申请日：2006-05-22
申请人： Yuji Iwadate , Tetsuji Tsukamoto
发明人： Yuji Iwadate , Tetsuji Tsukamoto
IPC分类号： G01V3/00
CPC分类号： G01R33/341
摘要： With a view to providing a receiving coil which permits a subject to assume a supine position when radiographing the breast of the subject, thereby improving the working efficiency, a receiving coil for receiving a magnetic resonance signal from the breast of a subject lying within a static magnetic field space is provided in each of a first cup and a second cup of a brassiere which cups receive the breast of the subject SU therein.
摘要翻译：为了提供一种接收线圈，其允许受试者在拍摄对象的乳房时进行仰卧位置，从而提高工作效率;接收线圈，用于从位于静态内的被摄体的乳房接收磁共振信号在第一杯和第二杯胸罩中的每一个中提供磁场空间，其中杯子容纳受试者SU的乳房。

2. 发明授权

US07332911B2 Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：US07332911B2
公开(公告)日：2008-02-19
申请号：US11562275
申请日：2006-11-21
申请人： Yuji Iwadate , Tetsuji Tsukamoto
发明人： Yuji Iwadate , Tetsuji Tsukamoto
IPC分类号： G01V3/00
CPC分类号： G01R33/5676 , G01R33/56308
摘要： The present invention provides an MRI apparatus which prevents from developing body move artifacts on the image to improve the image quality. In the navigator sequence a scan unit emits first RF pulse so as to excite first slice plane area which is out of the imaging area and is intersecting the navigator area including the epiglottis, then it emits second RF pulse so as to excite second slice plane area which is out of the imaging area and is intersecting the first slice plane area in the navigator area including the epiglottis. Thereafter a body move detector detects the displacement of epiglottis due to the deglutition movement based on the navigator echo data, a raw data selector unit selects as raw data the imaging data thus obtained in the imaging sequence based on the displacement of epiglottis, then the image of the slice plane including the esophagus in the subject is generated from the imaging data thus selected.
摘要翻译：本发明提供一种MRI装置，其防止显影体在图像上移动伪影以提高图像质量。在导航器序列中，扫描单元发射第一RF脉冲，以便激发位于成像区域之外且与包括会厌的导航区域相交的第一切片平面区域，然后它发射第二RF脉冲，以激发第二切片平面区域其在成像区域之外并且与包括会厌的导航区域中的第一切片平面区域相交。此后，身体移动检测器基于导航回波数据检测由于吞咽运动引起的会厌位移，原始数据选择器单元基于会厌位移而在成像序列中选择如此获得的成像数据作为原始数据，然后图像包括食管在内的切片平面由这样选择的成像数据产生。

3. 发明授权

US07187174B2 RF receiving coil apparatus and magnetic resonance imaging apparatus 有权
标题翻译： RF接收线圈装置和磁共振成像装置
公开(公告)号：US07187174B2
公开(公告)日：2007-03-06
申请号：US11438524
申请日：2006-05-22
申请人： Yuji Iwadate , Tetsuji Tsukamoto
发明人： Yuji Iwadate , Tetsuji Tsukamoto
IPC分类号： G01V3/00
CPC分类号： G01R33/341
摘要： With a view to providing a receiving coil which permits a subject to assume a supine position when radiographing the breast of the subject, thereby improving the working efficiency, a receiving coil for receiving a magnetic resonance signal from the breast of a subject lying within a static magnetic field space is provided in each of a first cup and a second cup of a brassiere which cups receive the breast of the subject SU therein.
摘要翻译：为了提供一种接收线圈，其允许受试者在拍摄对象的乳房时进行仰卧位置，从而提高工作效率;接收线圈，用于从位于静态内的被摄体的乳房接收磁共振信号在第一杯和第二杯胸罩中的每一个中提供磁场空间，其中杯子容纳受试者SU的乳房。

4. 发明申请

US20070073141A1 BREATH HOLDING MR IMAGING METHOD, MRI APPARATUS, AND TOMOGRAPHIC IMAGING APPARATUS 审中-公开
标题翻译：气管保存MR成像方法，MRI装置和图像成像装置
公开(公告)号：US20070073141A1
公开(公告)日：2007-03-29
申请号：US11531973
申请日：2006-09-14
申请人： Yuji Iwadate , Atsushi Nozaki , Tetsuji Tsukamoto , Hiroyuki Kabasawa
发明人： Yuji Iwadate , Atsushi Nozaki , Tetsuji Tsukamoto , Hiroyuki Kabasawa
IPC分类号： A61B5/05
CPC分类号： G01R33/5676 , G01R33/56509
摘要： When two or more run of breath holding imaging with breathing interval therebetween is conducted, the present invention allows the slice position to follow the positional displacement of organ in each run. The present invention comprises an image capturing step for the navigator for imaging an MR image having the imaging area including the diaphragm during breath holding, a diaphragm position obtaining step for obtaining the diaphragm position by analyzing the navigator image, an image capturing step for the actual imaging for capturing an MR image of a desired slice during breath holding, and a breathing interval step for releasing respiration, in which these steps are iteratively repeated for twice or more. The slice position of second session or later is made to be a position which is set such that the slice position of first run is compensated for by the difference between the diaphragm position of the first run and the diaphragm position of the second run or later.
摘要翻译：当进行呼吸间隔的两次或更多次呼吸持续成像时，本发明允许切片位置跟随每次跑步中器官的位置位移。本发明包括用于导航仪的图像捕获步骤，用于对具有包括在呼吸保持期间的隔膜的成像区域的MR图像进行成像，用于通过分析导航图像来获得隔膜位置的隔膜位置获取步骤，用于实际用于在呼吸保持期间捕获期望切片的MR图像的成像和用于释放呼吸的呼吸间隔步骤，其中这些步骤被迭代地重复两次或更多次。第二会话或更后的切片位置被设置为使得第一行程的切片位置由第一行程的隔膜位置和第二行程的隔膜位置之间的差被补偿的位置。

5. 发明申请

US20070120565A1 MAGNETIC RESONANCE IMAGING APPARATUS 有权
标题翻译：磁共振成像装置
公开(公告)号：US20070120565A1
公开(公告)日：2007-05-31
申请号：US11562275
申请日：2006-11-21
申请人： Yuji Iwadate , Tetsuji Tsukamoto
发明人： Yuji Iwadate , Tetsuji Tsukamoto
IPC分类号： G01V3/00
CPC分类号： G01R33/5676 , G01R33/56308
摘要： The present invention provides an MRI apparatus which prevents from developing body move artifacts on the image to improve the image quality. In the navigator sequence a scan unit emits first RF pulse so as to excite first slice plane area which is out of the imaging area and is intersecting the navigator area including the epiglottis, then it emits second RF pulse so as to excite second slice plane area which is out of the imaging area and is intersecting the first slice plane area in the navigator area including the epiglottis. Thereafter a body move detector detects the displacement of epiglottis due to the deglutition movement based on the navigator echo data, a raw data selector unit selects as raw data the imaging data thus obtained in the imaging sequence based on the displacement of epiglottis, then the image of the slice plane including the esophagus in the subject is generated from the imaging data thus selected.
摘要翻译：本发明提供一种MRI装置，其防止显影体在图像上移动伪影以提高图像质量。在导航器序列中，扫描单元发射第一RF脉冲，以便激发位于成像区域之外且与包括会厌的导航区域相交的第一切片平面区域，然后它发射第二RF脉冲，以激发第二切片平面区域其在成像区域之外并且与包括会厌的导航区域中的第一切片平面区域相交。此后，身体移动检测器基于导航回波数据检测由于吞咽运动引起的会厌位移，原始数据选择器单元基于会厌位移而在成像序列中选择如此获得的成像数据作为原始数据，然后图像包括食管在内的切片平面由这样选择的成像数据产生。

6. 发明授权

US6066950A MR imaging method and apparatus 有权
标题翻译： MR成像方法和装置
公开(公告)号：US6066950A
公开(公告)日：2000-05-23
申请号：US170176
申请日：1998-10-13
申请人： Tetsuji Tsukamoto , Koichi Oshio
发明人： Tetsuji Tsukamoto , Koichi Oshio
IPC分类号： G01R33/48 , A61B5/055 , G01R33/561 , G01V3/00
CPC分类号： G01R33/561
摘要： In order to shorten imaging time in MR imaging, when a partial region A1 is imaged using a fast pulse sequence, a selectively excited region E90 and a selectively inverted region E180 are intersected with each other so as not to include a partial region A2 to be imaged next within the selectively excited region E90 and the selectively inverted region E180.
摘要翻译：为了缩短MR成像中的成像时间，当使用快速脉冲序列成像部分区域A1时，选择性激发区域E90和选择性反转区域E180彼此相交，以便不将部分区域A2包括为成像在选择性激发区域E90和选择性反转区域E180之后。

7. 发明授权

US06812698B1 Imaging with spin excitation while keeping within a specific absorption ratio limit 失效
标题翻译：自旋激发成像，同时保持在特定的吸收比限度内
公开(公告)号：US06812698B1
公开(公告)日：2004-11-02
申请号：US09612649
申请日：2000-07-08
申请人： Tetsuji Tsukamoto
发明人： Tetsuji Tsukamoto
IPC分类号： G01V300
CPC分类号： G01R33/583
摘要： In order to provide a spin excitation method and apparatus for performing imaging with good efficiency while keeping within an SAR limit, and a magnetic resonance imaging apparatus employing such a spin excitation apparatus, an SAR of an object to be imaged in executing a pulse sequence is predicted (704); and at least one among the number of pulses, pulse waveform and pulse width of the RF pulses in the pulse sequence is adjusted (706) so that the predicted SAR value falls within a predetermined limit.
摘要翻译：为了提供一种在保持SAR限制的同时以高效率进行成像的自旋激发方法和装置，以及采用这种自旋激发装置的磁共振成像装置，在执行脉冲序列时要成像对象的SAR是预测（704）; 并且脉冲序列中的脉冲数，脉冲波形和脉冲宽度中的至少一个被调整（706），使得预测的SAR值落在预定的极限内。

8. 发明授权

US5685304A Diffusion sensitizing imaging method and MRI apparatus 失效
标题翻译：扩散增敏成像方法和MRI装置
公开(公告)号：US5685304A
公开(公告)日：1997-11-11
申请号：US494126
申请日：1995-06-23
申请人： Tetsuji Tsukamoto
发明人： Tetsuji Tsukamoto
IPC分类号： G01R33/54 , A61B5/055 , G01R33/563
CPC分类号： G01R33/56341
摘要： A diffusion sensitizing imaging method and MRI apparatus capable of reducing image pickup time and thereby suppress artifacts attributable to body movement, wherein an RF pulse of 90.degree. is applied to a diagnostic portion so that spins are created therein; and an RF pulse of 180.degree. is applied on expiration of a time length TE/2 so as to reverse the spins; an echo is imaged; and the image after an echo center is sampled; and the RRF pulse application is such that the gradients of the read out axis and the warp axis form a spiral trajectory which extends in a spiral form from the center to the end of the k-space; and wherein before and after application of the 180.degree. RF pulse, strong motion probing gradients, for diffusion sensitization, are applied to an arbitrary gradient axis; and wherein the phase of the MR data is modified based on the phase of the MR data at the center of the k-space, or based on the average phase of the MR data at the center of the k-space.
摘要翻译：一种扩散敏化成像方法和MRI装置，其能够降低摄像时间，从而抑制归因于身体运动的伪像，其中将90度的RF脉冲施加到诊断部分，使得在其中产生自旋; 并且在时间长度TE / 2到期时施加180°的RF脉冲，以便反转自旋; 回波成像; 采样回波中心后的图像; 并且RRF脉冲应用使得读出轴和经轴的梯度形成从k空间的中心到末端以螺旋形式延伸的螺旋轨迹; 并且在施加180°RF脉冲之前和之后，用于扩散致敏的强运动探测梯度被施加到任意梯度轴; 并且其中基于在k空间的中心处的MR数据的相位或者基于在k空间的中心的MR数据的平均相位修改MR数据的相位。

9. 发明申请

US20070088212A1 MAGNETIC RESONANCE IMAGING APPARATUS 审中-公开
标题翻译：磁共振成像装置
公开(公告)号：US20070088212A1
公开(公告)日：2007-04-19
申请号：US11550071
申请日：2006-10-17
申请人： Naoyuki Takei , Tetsuji Tsukamoto
发明人： Naoyuki Takei , Tetsuji Tsukamoto
IPC分类号： A61B5/05 , G01V3/00
CPC分类号： A61B5/055 , A61B5/7207 , G01R33/563 , G01R33/5635 , G01R33/56509 , G01R33/5673 , G01R33/5676
摘要： For the purpose of improving contrast of an image, and hence, image quality, a navigator sequence NS for acquiring navigator echo data is performed before performing an imaging sequence IS each time, and a displacement N of the diaphragm caused by respiratory motion is detected based on the navigator echo data. Then, an imaging sequence IS for acquiring imaging data in the imaged region is performed if the detected displacement N caused by respiratory motion N of the subject falls within an acceptance window AW. Thereafter, each of a plurality of sets of imaging data acquired in the imaging sequence IS performed a plurality of number of times is corrected using a correction factor corresponding to a time interval between a first imaging sequence IS1 in which each set of imaging data is acquired and a second imaging sequence IS2 performed before the first imaging sequence IS1, and a slice image is produced from the plurality of corrected sets of imaging data.
摘要翻译：为了改善图像的对比度以及图像质量，在每次执行成像序列IS之前执行用于获取导航者回波数据的导航序列NS，并且基于检测由呼吸运动引起的隔膜的位移N 在导航仪上回声数据。然后，如果被检测者的呼吸运动N所引起的检测到的位移N落在接受窗口AW内，则执行用于获取成像区域中的成像数据的成像序列IS。此后，使用与第一成像序列IS 1之间的时间间隔对应的校正因子来校正在成像序列IS中获取的多个成像序列组中的多组成像数据，其中每组成像数据是并且在第一成像序列IS 1之前执行第二成像序列IS 2，并且从多个校正的成像数据组产生切片图像。

10. 发明授权

US06515477B1 Magnetic resonance random trajectory collection method and apparatus 失效
标题翻译：磁共振随机轨迹采集方法及装置
公开(公告)号：US06515477B1
公开(公告)日：2003-02-04
申请号：US09589468
申请日：2000-06-07
申请人： Nobuyuki Tasaka , Tetsuji Tsukamoto
发明人： Nobuyuki Tasaka , Tetsuji Tsukamoto
IPC分类号： G01V300
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° 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.
摘要翻译：为了提供抑制由成像对象的运动引起的虚假图像的磁共振信号收集方法和装置，选择轨迹a-p的顺序被随机化。或者，在第一和下一个轨迹之间将角度差设置为90°，然后定义新的轨迹，使得相邻轨迹之间的角度差是依次重复的二等角。

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