公开(公告)号：US5165411A

公开(公告)日：1992-11-24

申请号：US672757

申请日：1991-03-22

申请人： Yoshiyuki Miyamoto ,  Ryuzaburo Takeda ,  Toshiaki Aritomi

发明人： Yoshiyuki Miyamoto ,  Ryuzaburo Takeda ,  Toshiaki Aritomi

IPC分类号： G01R33/54 ,  A61B5/055 ,  A61B10/00 ,  G01R33/32 ,  G01R33/567

CPC分类号： G01R33/5676

摘要： A radio frequency magnetic field is applied to a sample or object to be examined which is placed in a static magnetic field and oscillates periodically, and nuclear magnetic resonance signals are generated from the sample. The NMR signal is transformed to a signal having a form wherein a still image component and an artifact component resulting from the periodic oscillation, that are contained in the NMR signal, are mutually separated, and then processing is applied to the signal thus transformed so as to remove the artifact component therefrom. Inverse transform to the transform described above is applied to the signal thus processed.

摘要翻译： 将射频磁场施加到放置在静态磁场中并被周期性振荡的待检查的样品或物体，并且从样品产生核磁共振信号。 NMR信号被变换为具有形式的信号，其中包含在NMR信号中的由周期性振荡产生的静态图像分量和伪像分量相互分离，然后将处理应用于如此变换的信号，以便 从中删除工件组件。 将对上述变换的逆变换应用于由此处理的信号。

公开(公告)号：USD317596S

公开(公告)日：1991-06-18

申请号：US389566

申请日：1989-08-04

申请人： Isamu Takekoshi ,  Mitsuru Onuma ,  Kazuki Torai ,  Kazunori Hashimoto ,  Toshiaki Aritomi

设计人： Isamu Takekoshi ,  Mitsuru Onuma ,  Kazuki Torai ,  Kazunori Hashimoto ,  Toshiaki Aritomi

公开(公告)号：US4902972A

公开(公告)日：1990-02-20

申请号：US254652

申请日：1988-10-24

申请人： Ryuzaburo Takeda ,  Hideaki Koizumi ,  Toshiaki Aritomi

发明人： Ryuzaburo Takeda ,  Hideaki Koizumi ,  Toshiaki Aritomi

IPC分类号： A61B5/055 ,  G01R33/48 ,  G01R33/54 ,  G01R33/56

CPC分类号： G01R33/4833 ,  G01R33/56

摘要： A method of and apparatus for generating nuclear magnetic resonance of an object. It is desirable that a nuclear magnetic resonance image be obtained in such a maner that a portion of the image in which the user is interested in is displayed in a greater scale. To this end, nuclear magnetic resonance signals from a specific region of the image are picke-up by an aliasing phenomenon, into a predetermined signal band which is different from the signal band of the above-mentioned specific region.

摘要翻译： PCT No.PCT / JP87 / 01021 Sec。 371日期：1988年10月24日第 102（e）日期1988年10月24日PCT 1987年12月23日PCT。一种用于产生物体的核磁共振的方法和装置。 期望以更大的尺度显示用户感兴趣的图像的一部分的方式获得核磁共振图像。 为此，来自图像的特定区域的核磁共振信号通过混叠现象被拾取到与上述特定区域的信号频带不同的预定信号频带。

公开(公告)号：US4958637A

公开(公告)日：1990-09-25

申请号：US278843

申请日：1988-12-02

申请人： Toshiaki Aritomi

发明人： Toshiaki Aritomi

IPC分类号： A61B10/00 ,  A61B5/0456 ,  A61B5/055 ,  G01R33/48 ,  G01R33/567

CPC分类号： G01R33/5673 ,  A61B5/0456 ,  A61B5/055 ,  A61B5/7239

摘要： A magnetic resonance examining apparatus of heart beat synchronous type in which one heart beat period is substantially equally divided to provide a plurality of phases, and at least some of those phases are selected as imaging phases so as to obtain nuclear magnetic resonance images. In the apparatus, spin excitation is effected at all the phases including those where nuclear magnetic resonance images are obtained and those where nuclear magnetic resonance images are not obtained, so that all the phases have the same longitudinal relaxation time after spin excitation. Therefore, nuclear magnetic resonance signals free from variations of the longitudinal relaxation time can be obtained to provide clear nuclear magnetic resonance images at anyone of the plurality of phases.

摘要翻译： 一种心跳同步型的磁共振检查装置，其中一个心跳周期基本上相等地分配以提供多个相位，并且选择这些相中的至少一些作为成像相位以获得核磁共振图像。 在该装置中，在包括获得核磁共振图像和不获得核磁共振图像的相的所有相进行自旋激发，使得所有相在旋转激发后具有相同的纵向弛豫时间。 因此，可以获得没有纵向弛豫时间的变化的核磁共振信号，以在多个相中的任何一个阶段提供清晰的核磁共振图像。

公开(公告)号：US4653078A

公开(公告)日：1987-03-24

申请号：US721468

申请日：1985-04-09

申请人： Toshiaki Aritomi ,  Hatsue Shinohara ,  Shinichi Sakuraba

发明人： Toshiaki Aritomi ,  Hatsue Shinohara ,  Shinichi Sakuraba

IPC分类号： G01N15/14 ,  G01N27/00

CPC分类号： G01N15/1459 ,  G01N2015/0073 ,  G01N2015/1415 ,  G01N2015/1486

摘要： A method of counting red blood cells suspended in a blood sample is disclosed which can judge the presence or absence of clogging in the sample passage system of a blood cell counting apparatus. In this method, for example, the counting of red blood cells for a period of 200 msec is repeated 50 times, the means value X and standard deviation SD of 50 red blood cell counts each indicating the number of red blood cells per unit time (equal to 200 msec) are calculated, and when one of the red blood cell counts deviates from the mean value X by more than 3SD, such deviation is judged to presage clogging in the sample passage system. Further, each of the red blood cell counts can be displayed on the fluorescent screen of a CRT display.

摘要翻译： 公开了一种计数悬浮在血液样品中的红细胞的方法，其可以判断血细胞计数装置的样品通道系统中是否存在堵塞。 在该方法中，例如，将200毫秒的红细胞计数重复50次，将50次红细胞计数的平均值＆Upbar＆X和标准差SD计数为每单位时间内的红细胞数 （等于200毫秒），当红细胞计数之一偏离平均值＆upbar＆X超过3SD时，这种偏差被判断为在样品通道系统中预示着堵塞。 此外，每个红细胞计数可以显示在CRT显示器的荧光屏上。

公开(公告)号：US5611341A

公开(公告)日：1997-03-18

申请号：US180801

申请日：1994-01-10

申请人： Toshiaki Aritomi ,  Tuyosi Shudo ,  Syouji Kondou ,  Kazuo Suzuki

发明人： Toshiaki Aritomi ,  Tuyosi Shudo ,  Syouji Kondou ,  Kazuo Suzuki

IPC分类号： A61B5/055 ,  G01R33/28 ,  G01R33/32 ,  G01R33/54

CPC分类号： G01R33/54

摘要： An external trigger method in a magnetic resonance inspection apparatus includes the steps of inputting collectively imaging control data including an imaging portion of a subject, the kind of sequences, a time interval between the sequences and the number of times of repetition of the sequences, executing a pre-processing sequence corresponding to the imaging sequence set to be first executed, and checking whether the time interval until the start of the imaging sequence to be next executed is set to a predetermined value. The imaging sequence is started by an external trigger when the time interval is set to the indefinite value. The imaging sequence is started after the passage of the time of the predetermined value when the time interval is set to the predetermined value.

摘要翻译： 在磁共振检查装置中的外部触发方法包括以下步骤：集体地输入包括被摄体的成像部分，序列的种类，序列之间的时间间隔和序列的重复次数的成像控制数据，执行 对应于首先执行的成像序列的预处理序列，并且检查直到下一次执行的成像序列的开始的时间间隔是否被设置为预定值。 当时间间隔设置为不定值时，成像序列由外部触发启动。 当时间间隔被设定为预定值时，在经过预定值的时间之后开始成像序列。

公开(公告)号：US5003264A

公开(公告)日：1991-03-26

申请号：US490457

申请日：1990-03-08

申请人： Hideaki Koizumi ,  Toshiaki Aritomi ,  Shinji Yamamoto ,  Yutaka Takuma

发明人： Hideaki Koizumi ,  Toshiaki Aritomi ,  Shinji Yamamoto ,  Yutaka Takuma

IPC分类号： G01R33/32 ,  A61B5/055 ,  G01R33/56 ,  G01R33/561

CPC分类号： G01R33/56 ,  G01R33/561

摘要： MR imaging method and apparatus are disclosed in which one image is displayed such that a high-resolution image of a partial region obtained by measurement according to a low-speed sequence is inserted into a low-resolution whole image obtained by measurement according to a high-speed sequence.

摘要翻译： 公开了一种MR成像方法和装置，其中显示一个图像，使得通过根据低速序列的测量获得的部分区域的高分辨率图像被插入到通过根据高的测量获得的低分辨率全图像中 速度序列。