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公开(公告)号：US20080009710A1
公开(公告)日：2008-01-10
申请号：US11883700
申请日：2006-02-07
IPC分类号： A61B5/055
CPC分类号： G01R33/4836 , G01R33/446 , G01R33/4835
摘要： A magnetic resonance imaging method includes a step (1) for exciting atomic nuclei in a desired region of an object to be examined so as to cause nuclear magnetic resonance, a step (2) for detecting a nuclear magnetic resonance signal generated in the blood, and a step (3) for extracting a blood image of the object by the detected nuclear magnetic resonance signal. The desired region excited by the step (1) represents a plurality of regions arranged at a predetermined interval.
摘要翻译： 磁共振成像方法包括：步骤（1），用于激发待检测物体的期望区域中的原子核以引起核磁共振;步骤（2），用于检测在血液中产生的核磁共振信号， 以及用于通过检测到的核磁共振信号提取物体的血液图像的步骤（3）。 由步骤（1）激发的期望区域表示以预定间隔布置的多个区域。
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公开(公告)号：US07684847B2
公开(公告)日：2010-03-23
申请号：US10570397
申请日：2004-09-03
IPC分类号： A61B5/055
CPC分类号： G01R33/563 , G01R33/5601 , G01R33/5602 , G01R33/5614 , G01R33/5635 , G01R33/565 , G01R33/56509 , G01R33/5673 , G01R33/5676
摘要： When performing imaging in synchronization with a biological movement of an examinee by using a pulse sequence applying a pre-saturation pulse, it is possible to reduce irregularities of echo signal intensity and artifact on the image generated by the irregularities. Especially, it is possible to prevent artifact attributed to blood in the ventricle when performing delay contrast imaging. For this, before measuring the echo signal, an IR pulse or the like for adjusting magnetization to a desired state is applied so as to suppress irregularities of the echo signal intensity and prevent artifact.
摘要翻译： 当通过使用施加预饱和脉冲的脉冲序列与被检体的生物运动同步地进行成像时，可以减少由不规则性产生的图像上的回波信号强度和伪影的不规则性。 特别地，当进行延迟对比度成像时，可以防止归因于心室中的血液的伪像。 为此，在测量回波信号之前，施加用于将磁化调整到期望状态的IR脉冲等，以便抑制回波信号强度的不规则并防止伪影。
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公开(公告)号：US5928146A
公开(公告)日：1999-07-27
申请号：US815069
申请日：1997-03-11
IPC分类号： G01R33/561 , A61B5/055
CPC分类号： G01R33/56554
摘要： An inspection apparatus using nuclear magnetic resonance having arithmetic and control means for controlling a pulse sequence for detecting a nuclear magnetic resonance signal from a target to be inspected and calculating the detected signal. The arithmetic and control means controls an echo planar pulse sequence for acquiring a plurality of images of a predetermined same region of the target to be inspected; and arranges echo signal data obtained by measuring the inspection target by the echo planar pulse sequence and forms an EPI data set; designates a plurality of data points in k-space as observed points; designates a predetermined EPI data set to reference data for body motion for correcting influence by the body motion of the inspection target and calculates a reference phase as a phase of the body motion reference data at the observed points; calculates the phase of the EPI data set at the observed points; calculates a body motion correcting value expressing the influence by the body motion of the inspection target by using the phase difference between the phase of the EPI data set and the reference phase; and executes a process for eliminating the influence by the body motion of the inspection target by removing the phase difference of the EPI data set of the target to be inspected by using the body motion correction values.
摘要翻译： 一种使用核磁共振的检查装置，具有算术和控制装置，用于控制用于检测来自待检查目标的核磁共振信号的脉冲序列，并计算检测信号。 算术和控制装置控制回波平面脉冲序列，用于获取待检查目标的预定相同区域的多个图像; 并且通过回波平面脉冲序列排列通过测量检查对象获得的回波信号数据，并形成EPI数据组; 指定k空间中的多个数据点作为观察点; 将预定的EPI数据集指定为身体运动的参考数据，以校正由检查对象的身体运动产生的影响，并计算参考相位作为观察点处的身体运动参考数据的相位; 计算观测点处EPI数据集的相位; 通过使用EPI数据集的相位与参考相位之间的相位差来计算表示由检查对象的身体运动产生的影响的身体运动校正值; 并且通过使用身体运动校正值来去除被检查对象的EPI数据集的相位差来消除检查对象的身体运动的影响的处理。
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公开(公告)号：US5453692A
公开(公告)日：1995-09-26
申请号：US98816
申请日：1993-07-29
CPC分类号： G01R33/3415 , G01R33/34046 , G01R33/365
摘要： An RF probe for an MRI device including a plurality of hollow cylindrical resonators arranged in series such that the respective axes of the resonators align substantially in a z-axis direction of a three dimensional orthogonal coordinate system, radio frequency power signal supply/reception pickup coils to/from the respective resonators; and loop coils situated riding on two adjacent resonators in x- and y-axis directions, and an electromagnetic shield which surrounds the hollow cylindrical resonators, pickup coils and loop coils and grounded with respect to radio frequency.
摘要翻译： 一种用于MRI装置的RF探针，其包括串联布置的多个中空圆柱形谐振器，使得谐振器的各个轴线基本上在三维正交坐标系的z轴方向上对准，射频功率信号供应/接收拾取线圈 来自相应的谐振器; 以及围绕x和y轴方向的两个相邻谐振器上的环形线圈，以及围绕中空圆柱形谐振器，拾取线圈和环形线圈并相对于射频接地的电磁屏蔽。
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5.发明授权公开(公告)号：US09063207B2
公开(公告)日：2015-06-23
申请号：US13641161
申请日：2011-04-14
IPC分类号： G06K9/00 , G01R33/563 , A61B5/02 , A61B5/026 , G01R33/483 , G01R33/561 , A61B5/00 , A61B5/0456
CPC分类号： G01R33/56316 , A61B5/02007 , A61B5/0263 , A61B5/0456 , A61B5/7285 , G01R33/4838 , G01R33/5617 , G01R33/5635
摘要： There is provided an MRI apparatus and a blood vessel image capturing method capable of improving the separability of an artery and a vein. In order to do so, using an imaging sequence obtained by combining a first sequence portion for measuring a first echo signal used for acquisition of a blood vessel image of a desired region of an object with a second sequence portion for measuring a second echo signal used for acquisition of blood flow information of the object, the object is imaged by one examination scan. In addition, blood flow information is acquired using the second echo signal, and at least one of an artery and a vein is extracted in an image, which is reconstructed using the first echo signal, using the acquired blood flow information.
摘要翻译： 提供能够提高动脉和静脉的分离性的MRI装置和血管图像捕获方法。 为了这样做，使用通过组合用于测量用于获取对象的期望区域的血管图像的第一回波信号的第一序列部分与用于测量所使用的第二回波信号的第二序列部分而获得的成像序列 为了获取对象的血流信息，通过一次检查扫描对象进行成像。 此外，使用第二回波信号获取血流信息，并且使用获取的血流信息在使用第一回波信号重建的图像中提取动脉和静脉中的至少一个。
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公开(公告)号：US20130106417A1
公开(公告)日：2013-05-02
申请号：US13808659
申请日：2011-06-28
申请人： Kenji Nakanishi , Hiroyuki Itagaki
发明人： Kenji Nakanishi , Hiroyuki Itagaki
CPC分类号： G01R33/543 , G01R33/5613 , G01R33/565 , G06F17/11
摘要： Disclosed are a magnetic resonance imaging apparatus and an RF pulse control method wherein an RF pulse sequence in a start-up sequence is set as a monotonically increasing flip angle with offset, in order to reduce ghosts, blurring, and other artifacts during measurement in a transient state. For example, the sum of two adjacent consecutive terms in a monotonically increasing sequence is set as the flip angle. Specifically, the number of RF pulses in the RF pulse sequence and the flip angle for the RF pulses in an SSFP sequence are set, and the monotonically increasing flip angle with offset is found, based on the set number of RF pulses in the RF pulse sequence and the flip angle for the RF pulses in the SSFP sequence, and used as the RF pulse sequence.
摘要翻译： 公开了一种磁共振成像装置和RF脉冲控制方法，其中启动序列中的RF脉冲序列被设置为具有偏移的单调增加的翻转角，以便减少在测量期间的重影，模糊和其他伪像 暂态 例如，将单调递增序列中的两个相邻连续项的和设置为翻转角。 具体地，设置RF脉冲序列中的RF脉冲的数量和SSFP序列中的RF脉冲的翻转角，并且基于RF脉冲中的设定的RF脉冲数，找到具有偏移的单调增加的翻转角 序列和SSFP序列中RF脉冲的翻转角，并用作RF脉冲序列。
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公开(公告)号：US20100290682A1
公开(公告)日：2010-11-18
申请号：US12738571
申请日：2008-10-15
申请人： Hiroyuki Itagaki
发明人： Hiroyuki Itagaki
IPC分类号： G06K9/00
CPC分类号： G01R33/561 , G01R33/4824 , G01R33/5611 , G01R33/5617 , G01R33/56333 , G01R33/5673
摘要： An imaging pulse sequence includes; a tagging sequence for modulating nuclear magnetization of an object to be imaged; and an imaging sequence for non-measurement of a part of k-space data.Control means includes: measurement-requiring region specification means which specifies a measurement region (measurement-requiring region) of the k-space required for reflecting the affect of the modulated nuclear magnetization on the image to be reconstructed; and sequence modification means for modifying the imaging sequence so as to measure the measurement region specified by the measurement requiring region specification means when executing the imaging sequence.
摘要翻译： 成像脉冲序列包括： 用于调制待成像对象的核磁化的标记序列; 以及用于非测量k空间数据的一部分的成像序列。 控制装置包括：测量要求区域指定装置，其指定用于反映调制核磁化对待重构图像的影响所需的k空间的测量区域（测量要求区域）; 以及序列修改装置，用于修改成像序列，以便在执行成像序列时测量由测量要求区域指定装置指定的测量区域。
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公开(公告)号：US5539311A
公开(公告)日：1996-07-23
申请号：US160807
申请日：1993-12-03
IPC分类号： G01R33/561 , G01V3/00
CPC分类号： G01R33/56554
摘要： In magnetic resonance imaging, a first echo train is obtained by applying a readout gradient magnetic field to a region of interest to be imaged and periodically inverting the polarity of the readout gradient magnetic field, without applying an encoding gradient magnetic field to the region of interest. A periodic change of phase shift of the first echo train is detected from the first echo train. Information indicating phase shifts of all of the echoes in the first echo train is obtained using the periodic change of phase shift. A second echo train is obtained by applying a readout gradient magnetic field and an encoding magnetic field to the region of interest and periodically inverting the polarity of the readout gradient magnetic field. Phases of echoes in the second echo train are corrected using the information indicating phase shifts of all of the echoes in the first echo train.
摘要翻译： 在磁共振成像中，通过将读出梯度磁场施加到要成像的感兴趣区域并周期性地反转读出梯度磁场的极性，而不对感兴趣的区域施加编码梯度磁场，获得第一回波串 。 从第一回波列检测第一回波串的相移的周期性变化。 使用相移的周期性变化来获得指示第一回波列中的所有回波的相移的信息。 通过将读出梯度磁场和编码磁场施加到感兴趣的区域并周期性地反转读出梯度磁场的极性来获得第二回波串。 使用指示第一回波列中的所有回波的相移的信息来校正第二回波列中的回波相位。
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公开(公告)号：US09594136B2
公开(公告)日：2017-03-14
申请号：US13808659
申请日：2011-06-28
申请人： Kenji Nakanishi , Hiroyuki Itagaki
发明人： Kenji Nakanishi , Hiroyuki Itagaki
IPC分类号： G01R33/54 , G06F17/11 , G01R33/561 , G01R33/565
CPC分类号： G01R33/543 , G01R33/5613 , G01R33/565 , G06F17/11
摘要： Disclosed are a magnetic resonance imaging apparatus and an RF pulse control method wherein an RF pulse sequence in a start-up sequence is set as a monotonically increasing flip angle with offset, in order to reduce ghosts, blurring, and other artifacts during measurement in a transient state. For example, the sum of two adjacent consecutive terms in a monotonically increasing sequence is set as the flip angle. Specifically, the number of RF pulses in the RF pulse sequence and the flip angle for the RF pulses in an SSFP sequence are set, and the monotonically increasing flip angle with offset is found, based on the set number of RF pulses in the RF pulse sequence and the flip angle for the RF pulses in the SSFP sequence, and used as the RF pulse sequence.
摘要翻译： 公开了一种磁共振成像装置和RF脉冲控制方法，其中启动序列中的RF脉冲序列被设置为具有偏移的单调增加的翻转角，以便减少在测量期间的重影，模糊和其他伪像 暂态 例如，将单调递增序列中的两个相邻连续项的和设置为翻转角。 具体地，设置RF脉冲序列中的RF脉冲的数量和SSFP序列中的RF脉冲的翻转角，并且基于RF脉冲中的设定的RF脉冲数，找到具有偏移的单调增加的翻转角 序列和SSFP序列中RF脉冲的翻转角，并用作RF脉冲序列。
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10.发明申请METHOD FOR PRODUCING REGENERATED CLAY, REGENERATED CLAY, AND METHOD FOR PRODUCING PURIFIED FATS AND OILS 有权生产再生粘土，再生粘土的方法和生产纯化脂肪和油的方法公开(公告)号：US20130150603A1
公开(公告)日：2013-06-13
申请号：US13816629
申请日：2011-10-03
CPC分类号： B01J20/3433 , B01J20/12 , C10L1/026 , C10L2290/12 , C10L2290/542 , C11B3/10 , C11B13/04 , C11C3/003 , Y02E50/13 , Y02W30/74
摘要： The present invention provides a method for performing regeneration of a decolorization capacity of waste clay that has been used for purification of fats and oils, and production of a thermally recyclable compound as a biofuel from oily ingredients in the waste clay at the same time in a convenient manner. That is, a method for producing purified fats and oils of the invention includes: a method for producing regenerated clay including the steps of mixing waste clay that has been used for purification of fats and oils, lower alcohol, and an acidic catalyst; and performing extraction of oily ingredients from the waste clay, and an esterification reaction between the fats and oils and/or a free fatty acid in the oily ingredients and the lower alcohol at the same time so as to regenerate a decolorization capacity of the waste clay; regenerated clay that is produced by the method for producing the regenerated clay; and a process of decolorizing the fats and oils using the regenerated clay.
摘要翻译： 本发明提供一种用于进行脂肪和油的净化的废粘土的脱色能力再生的方法，以及在废粘土中同时从油性成分中生产作为生物燃料的热可回收化合物 方便的方式。 也就是说，本发明的纯化油脂的制造方法包括：再生粘土的制造方法，包括将用于油脂，低级醇和酸性催化剂的净化的废粘土混合的工序; 并且从废弃粘土中进行油性成分的提取，以及油性成分和低级醇中的脂肪和油和/或游离脂肪酸之间的酯化反应，以再生废弃粘土的脱色能力 ; 通过再生粘土的制造方法制造的再生粘土; 以及使用再生粘土使油脂脱色的方法。
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