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1. 发明授权

US06194899B1 Temperature monitoring method, temperature monitoring apparatus and magnetic resonance apparatus 失效
标题翻译：温度监测方法，温度监测仪和磁共振仪
公开(公告)号：US06194899B1
公开(公告)日：2001-02-27
申请号：US09251488
申请日：1999-02-17
申请人： Yasutoshi Ishihara , Masaaki Umeda , Hidehiro Watanabe , Kazuya Okamoto
发明人： Yasutoshi Ishihara , Masaaki Umeda , Hidehiro Watanabe , Kazuya Okamoto
IPC分类号： G01V300
CPC分类号： G01R33/4804
摘要： An absolute temperature measuring pulse sequence is executed and, subsequently, a relative temperature measuring pulse sequence is repeatedly executed. Since while a relative temperature can be measured from phase information, an absolute temperature requires frequency information, a time required in the relative temperature measuring pulse can be made shorter than that required in the absolute temperature measuring pulse sequence. Since the relative temperature reveals a temperature variation, if an absolute temperature at a given time is known, an absolute temperature at a subsequent time can be calculated from the relative temperature. Thus, a local internal temperature of the subject can be measured, with a shorter temporal resolution, with the use of the absolute temperature and relative temperature.
摘要翻译：执行绝对温度测量脉冲序列，随后重复执行相对温度测量脉冲序列。由于可以从相位信息测量相对温度，所以绝对温度需要频率信息，相对温度测量脉冲所需的时间可以比绝对温度测量脉冲序列要短。由于相对温度显示温度变化，如果在给定时间内的绝对温度是已知的，则可以从相对温度计算随后时间的绝对温度。因此，可以使用绝对温度和相对温度，以较短的时间分辨率来测量受试者的局部内部温度。

2. 发明授权

US5916161A Magnetic resonance imaging apparatus with temperature measurement function 失效
标题翻译：具有温度测量功能的磁共振成像装置
公开(公告)号：US5916161A
公开(公告)日：1999-06-29
申请号：US713430
申请日：1996-09-13
申请人： Yasutoshi Ishihara , Kazuya Okamoto
发明人： Yasutoshi Ishihara , Kazuya Okamoto
IPC分类号： G01R33/48 , A61B5/00 , A61B5/055
CPC分类号： A61B5/015 , A61B5/055
摘要： A magnetic resonance imaging apparatus capable of measuring a temperature increase due to an application of RF magnetic fields for data acquisition purpose, and notifying an information on the measured temperature increase regularly to an operator, so as to secure the safety of a body to be examined. In this magnetic resonance imaging apparatus, the image data acquisition operation is controlled to acquire a phase information associated with a temperature change in an interior of the body to be examined, by displacing either an observation start timing or a radio frequency magnetic field application timing for a prescribed magnetic resonance signal in the magnetic resonance signal sequence from a normal timing for acquiring image data.
摘要翻译：一种磁共振成像装置，其能够测量由于应用RF磁场而导致的温度升高以用于数据采集目的，并且向操作者通知关于所测量的温度升高的信息，以确保要检查的身体的安全性。在该磁共振成像装置中，控制图像数据获取操作，通过将观察开始定时或射频磁场施加定时移位，来取得与被检体内部的温度变化相关的相位信息，从用于获取图像数据的正常定时的磁共振信号序列中规定的磁共振信号。

3. 发明授权

US5897495A Ultrasonic wave medical treatment apparatus suitable for use under guidance of magnetic resonance imaging 失效
标题翻译：超声波医疗器械适用于磁共振成像引导下使用
公开(公告)号：US5897495A
公开(公告)日：1999-04-27
申请号：US727036
申请日：1996-10-08
申请人： Satoshi Aida , Mariko Shibata , Katsuhiko Fujimoto , Yoshiharu Ishibashi , Takuji Suzuki , Yasutoshi Ishihara , Kazuya Okamoto
发明人： Satoshi Aida , Mariko Shibata , Katsuhiko Fujimoto , Yoshiharu Ishibashi , Takuji Suzuki , Yasutoshi Ishihara , Kazuya Okamoto
IPC分类号： A61B5/055 , A61B18/00 , A61B19/00 , A61F7/00 , A61N7/02 , G01R33/28
CPC分类号： A61N7/022 , A61N7/02 , G01R33/28 , A61B2090/374
摘要： An ultrasonic wave medical treatment apparatus capable of preventing the displacement of the focal point of the ultrasonic waves from the treatment target portion within the patient, eliminating a need for re-positioning of the ultrasonic wave applicator with respect to the patient, and taking MR images to be utilized during the treatment at a high resolution. In this apparatus, the ultrasonic wave applicator can be integrally incorporated within a treatment table for carrying the patient into the MRI gantry for taking the MR images. The surface coil for taking the MR images can be provided on a surface film of a water bag in the ultrasonic wave applicator, or on a body cavity probe on which the ultrasonic transducer is also provided. The mixing rate of the coupling fluid can be adjusted, and the impedance matching between the ultrasonic transducer and the driving circuit can be maintained by minimizing the reflected electric power from the ultrasonic transducer.
摘要翻译：一种超声波医疗处理装置，其能够防止超声波的焦点从患者体内的治疗对象部位移位，消除了超声波施加器相对于患者重新定位的需要，并且取MR图像以高分辨率在治疗期间使用。在该装置中，超声波施加器可以整体地结合在处理台内，用于将病人携带到用于拍摄MR图像的MRI台架中。用于拍摄MR图像的表面线圈可以设置在超声波施加器中的水袋的表面膜上，也可以设置在也设置有超声波换能器的体腔探针上。可以调节耦合流体的混合速率，并且可以通过使来自超声换能器的反射电力最小化来维持超声换能器与驱动电路之间的阻抗匹配。

4. 发明授权

US5590653A Ultrasonic wave medical treatment apparatus suitable for use under guidance of magnetic resonance imaging 失效
标题翻译：超声波医疗器械适用于磁共振成像引导下使用
公开(公告)号：US5590653A
公开(公告)日：1997-01-07
申请号：US207670
申请日：1994-03-09
申请人： Satoshi Aida , Mariko Shibata , Katsuhiko Fujimoto , Yoshiharu Ishibashi , Takuji Suzuki , Yasutoshi Ishihara , Kazuya Okamoto
发明人： Satoshi Aida , Mariko Shibata , Katsuhiko Fujimoto , Yoshiharu Ishibashi , Takuji Suzuki , Yasutoshi Ishihara , Kazuya Okamoto
IPC分类号： A61B5/055 , A61B18/00 , A61B19/00 , A61F7/00 , A61N7/02 , G01R33/28
CPC分类号： A61N7/022 , A61N7/02 , G01R33/28 , A61B2090/374
摘要： An ultrasonic wave medical treatment apparatus capable of preventing the displacement of the focal point of the ultrasonic waves from the treatment target portion within the patient, eliminating a need for re-positioning of the ultrasonic wave applicator with respect to the patient, and taking MR images to be utilized during the treatment at a high resolution. In this apparatus, the ultrasonic wave applicator can be integrally incorporated within a treatment table for carrying the patient into the MRI gantry for taking the MR images. The surface coil for taking the MR images can be provided on a surface film of a water bag in the ultrasonic wave applicator, or on a body cavity probe on which the ultrasonic transducer is also provided. The mixing rate of the coupling fluid can be adjusted, and the impedance matching between the ultrasonic transducer and the driving circuit can be maintained by minimizing the reflected electric power from the ultrasonic transducer.
摘要翻译：一种超声波医疗处理装置，其能够防止超声波的焦点从患者体内的治疗对象部位移位，消除了超声波施加器相对于患者重新定位的需要，并且取MR图像以高分辨率在治疗期间使用。在该装置中，超声波施加器可以整体地结合在处理台内，用于将病人携带到用于拍摄MR图像的MRI台架中。用于拍摄MR图像的表面线圈可以设置在超声波施加器中的水袋的表面膜上，也可以设置在也设置有超声波换能器的体腔探针上。可以调节耦合流体的混合速率，并且可以通过使来自超声换能器的反射电力最小化来维持超声换能器与驱动电路之间的阻抗匹配。

5. 发明授权

US09207299B2 Magnetic resonance imaging system and magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像系统和磁共振成像装置
公开(公告)号：US09207299B2
公开(公告)日：2015-12-08
申请号：US11362723
申请日：2006-02-28
申请人： Yasutoshi Ishihara
发明人： Yasutoshi Ishihara
IPC分类号： A61B5/05 , G01R33/48 , G01R33/565
CPC分类号： G01R33/4804 , G01R33/4814 , G01R33/56509
摘要： A magnetic resonance imaging system measures the temperature of a morbid region to be heated in thermotherapy and controls a scan unit to execute an imaging operation in synchronism with heating by a heating device, and generates measurement temperature data on the basis of the phase change of magnetic resonance signals at different generation times obtained by the imaging operation.
摘要翻译：磁共振成像系统测量在热疗中待加热的病态区域的温度，并且控制扫描单元以与加热装置的加热同步地执行成像操作，并且基于磁相的相位变化产生测量温度数据通过成像操作获得的不同发生时间的共振信号。

6. 发明授权

US5378987A Method and apparatus for non-invasive measurement of temperature distribution within target body using nuclear magnetic resonance imaging 失效
标题翻译：使用核磁共振成像对目标体内温度分布进行非侵入性测量的方法和装置
公开(公告)号：US5378987A
公开(公告)日：1995-01-03
申请号：US29565
申请日：1993-03-11
申请人： Yasutoshi Ishihara , Kozo Sato
发明人： Yasutoshi Ishihara , Kozo Sato
IPC分类号： A61B5/01 , A61B5/055 , G01N24/08 , G01R33/48 , G01R33/485 , G01V3/00
CPC分类号： G01R33/485
摘要： A non-invasive measurement of a temperature distribution within a target body using a nuclear magnetic resonance imaging, capable of realizing a high speed and a high precision measurement, and accounting for a displacement of the target body during the measurement. The chemical shift data from the target body at each voxel in an imaging target region on the target body are collected with and without a temperature change of the target body, a difference between the chemical shift data collected with the temperature change and the chemical shift data collected without the temperature change at each voxel, and a temperature distribution image is constructed and displayed according to the difference calculated. The chemical shift data are preferably collected by using a phase mapping imaging sequence.
摘要翻译：使用核磁共振成像对目标体内的温度分布进行非侵入式测量，能够实现高速度和高精度测量，并且考虑目标体在测量期间的位移。在目标体上的成像目标区域中的每个体素处的目标体的化学位移数据在目标体的温度变化和没有温度变化的情况下被收集，温度变化所收集的化学位移数据与化学位移数据之间的差在每个体素没有温度变化的情况下收集，并且根据计算出的差异构建并显示温度分布图像。优选地通过使用相位映射成像序列来收集化学位移数据。

7. 发明申请

US20070238976A1 Magnetic resonance imaging system and magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像系统和磁共振成像装置
公开(公告)号：US20070238976A1
公开(公告)日：2007-10-11
申请号：US11362723
申请日：2006-02-28
申请人： Yasutoshi Ishihara
发明人： Yasutoshi Ishihara
IPC分类号： A61B5/05
CPC分类号： G01R33/4804 , G01R33/4814 , G01R33/56509
摘要： A magnetic resonance imaging system which measures the temperature of a morbid region to be heated in thermotherapy controls an scan unit to execute imaging operation in synchronism with heating by a heating device, and generates measurement temperature data on the basis of the phase change of magnetic resonance signals at different generation times which are obtained by the imaging operation.
摘要翻译：测量热疗中待加热病态区域的温度的磁共振成像系统控制扫描单元与加热装置的加热同步地执行成像操作，并且基于磁共振的相位变化产生测量温度数据通过成像操作获得的不同发生时间的信号。

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