公开(公告)号：US20090066329A1

公开(公告)日：2009-03-12

申请号：US12200818

申请日：2008-08-28

申请人： Kenichi Kanda ,  Yuji Iwadate

发明人： Kenichi Kanda ,  Yuji Iwadate

IPC分类号： G01R33/54

CPC分类号： G01R33/5676 ,  G01R33/56509

摘要： A magnetic resonance imaging apparatus executes scans for executing a navigator sequence for acquiring as navigator data a magnetic resonance signal from a navigator area containing tissues body-moved in a subject and executing an imaging sequence for acquiring a magnetic resonance signal from an imaging area as imaging data at the subject, thereby to generate an image with respect to the imaging area. The magnetic resonance imaging apparatus includes, a phase profile generating part which generates a phase profile so as to show a relationship between a phase of the navigator data and a position of the navigator area, a phase correcting part which corrects folding back of the phase profile generated by the phase profile generating part, and a position detecting part which detects a position of a tissue body-moved in the navigator area, based on the phase profile corrected by the phase correcting part.

摘要翻译： 磁共振成像设备执行用于执行导航序列的扫描，以从导航器数据获取来自导航区域的磁共振信号，所述磁共振信号来自包含在被摄体中移动的身体的组织，并且执行用于从成像区域获取磁共振信号的成像序列作为成像 数据，从而产生相对于成像区域的图像。 磁共振成像装置包括：相位轮廓生成部，其生成相位轮廓，以示出导航者数据的相位与导航区域的位置之间的关系;相位校正部，其校正相位轮廓的折回 以及位置检测部，其基于由所述相位校正部校正的相位轮廓，检测在所述导航区域中移动的组织体的位置。

公开(公告)号：US07834623B2

公开(公告)日：2010-11-16

申请号：US12015833

申请日：2008-01-17

申请人： Yuji Iwadate ,  Kenichi Kanda

发明人： Yuji Iwadate ,  Kenichi Kanda

IPC分类号： G01V3/00

CPC分类号： G01R33/5676

摘要： An MRI apparatus includes a navigator device for obtaining information of body motion produced by respiration of a subject by a navigator pulse sequence, and a respiration waveform display device for displaying a respiration waveform on the basis of the body motion information obtained by the navigator device.

摘要翻译： MRI装置包括导航装置，用于通过导航脉冲序列获得由对象的呼吸产生的身体运动的信息;以及呼吸波形显示装置，用于根据导航装置获得的身体运动信息显示呼吸波形。

公开(公告)号：US20090270720A1

公开(公告)日：2009-10-29

申请号：US12429033

申请日：2009-04-23

申请人： Yuji Iwadate ,  Kenichi Kanda ,  Aki Yamazaki

发明人： Yuji Iwadate ,  Kenichi Kanda ,  Aki Yamazaki

IPC分类号： A61B5/055 ,  G01R33/48

CPC分类号： G01R33/5676 ,  A61B5/055 ,  G01R33/543 ,  G01R33/546

摘要： A magnetic resonance imaging apparatus includes a scan section for executing a navigator sequence which transmits an RF pulse to a subject to obtain each magnetic resonance signal as navigator data. Upon execution of the navigator sequence, the scan section excites both a navigator area having two regions from which intensities of different navigator data signals are obtained, said two regions containing a body-moved region of the subject, and a region different from the two regions simultaneously, and transmits the RF pulse in such a manner that the phase of navigator data obtained from the different region differs from the phase of at least one region of navigator data obtained from the two regions.

摘要翻译： 磁共振成像装置包括扫描部分，用于执行导航序列，其将RF脉冲发送到对象以获得每个磁共振信号作为导航器数据。 在执行导航器序列时，扫描部分激发具有两个区域的导航区域，从该区域获得不同导航数据信号的强度，所述两个区域包含被摄体的身体移动区域，以及与两个区域不同的区域 同时发送RF脉冲，使得从不同区域获得的导航数据的相位与从两个区域获得的导航数据的至少一个区域的相位不同。

公开(公告)号：US09316713B2

公开(公告)日：2016-04-19

申请号：US12429033

申请日：2009-04-23

申请人： Yuji Iwadate ,  Kenichi Kanda ,  Aki Yamazaki

发明人： Yuji Iwadate ,  Kenichi Kanda ,  Aki Yamazaki

IPC分类号： A61B5/055 ,  G01R33/48 ,  G01R33/567 ,  G01R33/54

CPC分类号： G01R33/5676 ,  A61B5/055 ,  G01R33/543 ,  G01R33/546

摘要： A magnetic resonance imaging apparatus includes a scan section for executing a navigator sequence which transmits an RF pulse to a subject to obtain each magnetic resonance signal as navigator data. Upon execution of the navigator sequence, the scan section excites both a navigator area having two regions from which intensities of different navigator data signals are obtained, the two regions containing a body-moved region of the subject, and a region different from the two regions simultaneously, and transmits the RF pulse in such a manner that the phase of navigator data obtained from the different region differs from the phase of at least one region of navigator data obtained from the two regions.

摘要翻译： 磁共振成像装置包括扫描部分，用于执行导航序列，其将RF脉冲发送到对象以获得每个磁共振信号作为导航器数据。 在执行导航器序列时，扫描部分激励具有两个区域的导航区域，从该区域获得不同导航数据信号的强度，两个区域包含被摄体的身体移动区域，以及与两个区域不同的区域 同时发送RF脉冲，使得从不同区域获得的导航数据的相位与从两个区域获得的导航数据的至少一个区域的相位不同。

公开(公告)号：US07782053B2

公开(公告)日：2010-08-24

申请号：US12200818

申请日：2008-08-28

申请人： Kenichi Kanda ,  Yuji Iwadate

发明人： Kenichi Kanda ,  Yuji Iwadate

IPC分类号： G01V3/00

CPC分类号： G01R33/5676 ,  G01R33/56509

摘要： A magnetic resonance imaging apparatus executes scans for executing a navigator sequence for acquiring as navigator data a magnetic resonance signal from a navigator area containing tissues body-moved in a subject and executing an imaging sequence for acquiring a magnetic resonance signal from an imaging area as imaging data at the subject, thereby to generate an image with respect to the imaging area. The magnetic resonance imaging apparatus includes, a phase profile generating part which generates a phase profile so as to show a relationship between a phase of the navigator data and a position of the navigator area, a phase correcting part which corrects folding back of the phase profile generated by the phase profile generating part, and a position detecting part which detects a position of a tissue body-moved in the navigator area, based on the phase profile corrected by the phase correcting part.

摘要翻译： 磁共振成像设备执行用于执行导航序列的扫描，以从导航器数据获取来自导航区域的磁共振信号，所述磁共振信号来自包含在被摄体中移动的身体的组织，并且执行用于从成像区域获取磁共振信号的成像序列作为成像 数据，从而产生相对于成像区域的图像。 磁共振成像装置包括：相位轮廓生成部，其生成相位轮廓，以示出导航者数据的相位与导航区域的位置之间的关系;相位校正部，其校正相位轮廓的折回 以及位置检测部，其基于由所述相位校正部校正的相位轮廓，检测在所述导航区域中移动的组织体的位置。

公开(公告)号：US08290566B2

公开(公告)日：2012-10-16

申请号：US12420974

申请日：2009-04-09

申请人： Yuji Iwadate ,  Kenichi Kanda

发明人： Yuji Iwadate ,  Kenichi Kanda

IPC分类号： A61B5/05

CPC分类号： A61B5/055 ,  A61B5/0037 ,  A61B5/7257

摘要： A magnetic resonance imaging apparatus includes a first navigator data processor that generates a first phase profile based on first navigator data acquired by executing a first navigator sequence, generates a position profile indicative of a relationship between a plurality of region positions and time at which the first navigator sequence is executed, and detects a specific position in the position profile. A second navigator data processor generates a second phase profile based on second navigator data acquired by executing a second navigator sequence, detects the position of each region with respect to each second phase profile within a reference range set so as to contain the specific position, based on each second phase profile, and acquires the same as its corresponding position data.

摘要翻译： 磁共振成像装置包括：第一导航数据处理器，其基于通过执行第一导航序列获取的第一导航数据生成第一相位轮廓，生成指示多个区域位置与第一导航数据之间的关系的位置分布; 执行导航序列，并检测位置分布中的特定位置。 第二导航器数据处理器基于通过执行第二导航序列获取的第二导航器数据来产生第二相位轮廓，在参考范围集合内检测相对于每个第二相位轮廓的每个区域的位置，以便包含特定位置 并且获取与其对应的位置数据相同的第二相位轮廓。

公开(公告)号：US08264223B2

公开(公告)日：2012-09-11

申请号：US12650266

申请日：2009-12-30

申请人： Yuji Iwadate ,  Kenichi Kanda

发明人： Yuji Iwadate ,  Kenichi Kanda

IPC分类号： G01V3/00

CPC分类号： G01R33/5676 ,  G01R33/3415 ,  G01R33/543

摘要： A magnetic resonance imaging apparatus includes a scan execution unit configured to execute a regular scan in which a navigator sequence for generating a magnetic resonance signal in a navigator area containing a region of interest moving with a biological movement of a subject and an imaging sequence for generating a magnetic resonance signal in an imaging area of the subject are carried out, and a signal processing unit configured to detect a position of a region of interest based on a magnetic resonance signal generated by a navigator sequence in the regular scan and to generate an image based on the detected position and the magnetic resonance signal generated by the imaging sequence. The signal processing unit is configured to generate an intensity profile with respect to the magnetic resonance signal generated by a navigator sequence in the pre-scan and received at each of the coil elements, determine the gradient polarity of the profile line corresponding to the high-signal substance in the predetermined direction in the generated intensity profile, and to select a coil element that received a magnetic resonance signal of the intensity profile highest in maximum signal intensity among the intensity profiles the gradient polarity of which was determined to face upward. The position of the region of interest is detected based on a magnetic resonance signal generated by a navigator sequence in the regular scan and received at the selected coil element.

摘要翻译： 磁共振成像装置包括：扫描执行单元，被配置为执行常规扫描，其中，在包含感兴趣区域的导航区域中产生磁共振信号的导航序列，所述导航区域包含随着被摄体的生物运动移动的感兴趣区域，以及用于生成 执行被检体的成像区域的磁共振信号，以及信号处理部，其基于由常规扫描中的导航序列生成的磁共振信号来检测感兴趣区域的位置，并生成图像 基于由成像序列产生的检测位置和磁共振信号。 信号处理单元被配置为产生相对于由预扫描中的每个线圈元件接收的导航序列产生的磁共振信号的强度分布，确定对应于高频信号的轮廓线的梯度极性， 在所产生的强度分布中沿预定方向的信号物质，并且选择线性元件，其接收在梯度极性被确定为面向上的强度分布中最大信号强度最高的强度分布的磁共振信号。 感兴趣区域的位置是基于由常规扫描中的导航序列产生的并在所选择的线圈元件处接收的磁共振信号来检测的。

公开(公告)号：US20090259120A1

公开(公告)日：2009-10-15

申请号：US12420974

申请日：2009-04-09

申请人： Yuji Iwadate ,  Kenichi Kanda

发明人： Yuji Iwadate ,  Kenichi Kanda

IPC分类号： A61B5/055

CPC分类号： A61B5/055 ,  A61B5/0037 ,  A61B5/7257

摘要： A magnetic resonance imaging apparatus includes a first navigator data processor that generates a first phase profile based on first navigator data acquired by executing a first navigator sequence, generates a position profile indicative of a relationship between a plurality of region positions and time at which the first navigator sequence is executed, and detects a specific position in the position profile. A second navigator data processor generates a second phase profile based on second navigator data acquired by executing a second navigator sequence, detects the position of each region with respect to each second phase profile within a reference range set so as to contain the specific position, based on each second phase profile, and acquires the same as its corresponding position data.

摘要翻译： 磁共振成像装置包括：第一导航数据处理器，其基于通过执行第一导航序列获取的第一导航数据生成第一相位轮廓，生成指示多个区域位置与第一导航数据之间的关系的位置分布; 执行导航序列，并检测位置分布中的特定位置。 第二导航器数据处理器基于通过执行第二导航序列获取的第二导航器数据来产生第二相位轮廓，在参考范围集合内检测相对于每个第二相位轮廓的每个区域的位置，以便包含特定位置 并且获取与其对应的位置数据相同的第二相位轮廓。

公开(公告)号：US20080211497A1

公开(公告)日：2008-09-04

申请号：US12015833

申请日：2008-01-17

申请人： Yuji Iwadate ,  Kenichi Kanda

发明人： Yuji Iwadate ,  Kenichi Kanda

IPC分类号： G01R33/48

CPC分类号： G01R33/5676

摘要： An MRI apparatus includes a navigator device for obtaining information of body motion produced by respiration of a subject by a navigator pulse sequence, and a respiration waveform display device for displaying a respiration waveform on the basis of the body motion information obtained by the navigator device.

摘要翻译： MRI装置包括导航装置，用于通过导航脉冲序列获得由对象的呼吸产生的身体运动的信息;以及呼吸波形显示装置，用于根据导航装置获得的身体运动信息显示呼吸波形。

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。