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1. 发明专利

JP2013099449A Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：JP2013099449A
公开(公告)日：2013-05-23
申请号：JP2011245176
申请日：2011-11-09
申请人： Toshiba Corp , 株式会社東芝 , Toshiba Medical Systems Corp , 東芝メディカルシステムズ株式会社
发明人： TAKAHASHI TOMOYOSHI , YUI MASAO
IPC分类号： A61B5/055
CPC分类号： G01R33/58 , G01R33/341 , G01R33/3415 , G01R33/543 , G01R33/56383
摘要： PROBLEM TO BE SOLVED: To properly set the condition of scan for calibration such as pre-scan without taking time and labor of a user for a setting operation, in an MRI.SOLUTION: In one embodiment, an MRI apparatus (20) includes a main scan executing unit for executing a main scan, an image reconstruction unit (90) for reconstructing image data based on magnetic resonance signals collected in the main scan, a calibration scan setting unit (100), a calibration scan executing unit, and a condition determining unit. The calibration scan setting unit (100) calculates and automatically sets the condition of a calibration scan used for determining the imaging condition of the main scan or a condition of reconstruction processing according to the type of an RF coil device and an imaging part. The calibration scan executing unit executes the calibration scan based on the automatically set condition of the calibration scan. The condition determining unit determines the imaging condition of the main scan or the condition of the reconstruction processing based on an execution result of the calibration scan.
摘要翻译：要解决的问题：在MRI中，正确地设置诸如预扫描的校准扫描条件，而不需要用户进行设置操作的时间和劳动。解决方案：在一个实施例中，MRI装置（20）包括用于执行主扫描的主扫描执行单元，用于基于在主扫描中收集的磁共振信号重建图像数据的图像重建单元（90），校准扫描设置单元（100），校准扫描执行单元和条件确定单元。校正扫描设置单元（100）根据RF线圈装置和成像部件的类型，计算并自动设置用于确定主扫描的成像条件的校准扫描的条件或重建处理的条件。校准扫描执行单元根据校准扫描的自动设置条件执行校准扫描。条件确定单元基于校准扫描的执行结果来确定主扫描的成像条件或重建处理的条件。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2012020110A Magnetic resonance imaging apparatus and magnetic resonance imaging method 有权
标题翻译：磁共振成像装置和磁共振成像方法
公开(公告)号：JP2012020110A
公开(公告)日：2012-02-02
申请号：JP2011097414
申请日：2011-04-25
申请人： Toshiba Corp , Toshiba Medical Systems Corp , 東芝メディカルシステムズ株式会社 , 株式会社東芝
发明人： TAKAHASHI TOMOYOSHI , IKEDO MASAHITO
IPC分类号： A61B5/055
CPC分类号： G01R33/483 , G01R33/5659
摘要： PROBLEM TO BE SOLVED: To provide technology to judge existence of an implant in such as chest of an object automatically and precisely.SOLUTION: According to one embodiment, an MRI apparatus includes an image generating unit, a judging unit, and a correction unit. The image generating unit receives, from an object, a magnetic resonance signal caused by transmission of an RF (Radio Frequency) pulse to cause a nuclear magnetic resonance, and generates image data of the object based on the magnetic resonance signal. The judging unit identifies an implant region where an implant part exists inside the object, based on the image data. The correction unit acquires magnetic resonance frequency information from a body region which is a region inside the object excluding the implant region, and corrects a center frequency of the RF pulse based on the magnetic resonance frequency information.
摘要翻译：要解决的问题：提供技术来自动和精确地判断诸如物体胸部中的植入物的存在。解决方案：根据一个实施例，MRI装置包括图像生成单元，判断单元和校正单元。图像生成单元从对象接收由射频（射频）脉冲的发送引起的核磁共振引起的磁共振信号，并且基于磁共振信号生成对象的图像数据。判断单元基于图像数据识别植入物部分存在于物体内部的植入区域。校正单元从除了植入区域之外的物体内的身体区域获取磁共振频率信息，并且基于磁共振频率信息来校正RF脉冲的中心频率。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2012105960A Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：JP2012105960A
公开(公告)日：2012-06-07
申请号：JP2011221303
申请日：2011-10-05
申请人： Toshiba Corp , Toshiba Medical Systems Corp , 東芝メディカルシステムズ株式会社 , 株式会社東芝
发明人： TAKAHASHI TOMOYOSHI , YUI MASAO
IPC分类号： A61B5/055
CPC分类号： A61B5/055 , A61B5/0037 , G01R33/48
摘要： PROBLEM TO BE SOLVED: To provide a magnetic resonance imaging apparatus capable of detecting, with higher accuracy, the resonance frequency of substance for signal collection such as water.SOLUTION: The magnetic resonance imaging apparatus includes a spectrum collecting means, a resonance frequency acquiring means and an imaging means. The spectrum collecting means changes an effect of suppressing or enhancing signals from a specific substance to collect frequency spectra of a plurality of magnetic resonance signals from a subject. The resonance frequency acquiring means acquires the resonance frequency of the specific substance or another substance based on an index that indicates the difference of intensity of signals from the specific substance or the another substance between the plurality of frequency spectra. The imaging means images using high frequency pulses whose center frequency is set to the resonance frequency of the specific substance or the another substance.
摘要翻译：要解决的问题：提供能够以更高的精度检测用于信号收集的物质（例如水）的共振频率的磁共振成像装置。解决方案：磁共振成像装置包括光谱采集装置，共振频率获取装置和成像装置。频谱收集装置改变抑制或增强来自特定物质的信号的效果，以收集来自被摄体的多个磁共振信号的频谱。谐振频率获取装置基于指示在多个频谱之间来自特定物质或另一物质的信号的强度差的指标，获取特定物质或其他物质的共振频率。成像是指使用将中心频率设定为特定物质或其他物质的共振频率的高频脉冲的图像。版权所有（C）2012，JPO＆INPIT

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