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公开(公告)号：US11333731B2
公开(公告)日：2022-05-17
申请号：US16381451
申请日：2019-04-11
发明人： Satoshi Imai , Sadanori Tomiha
摘要： An MRI apparatus according to an embodiment includes a whole body RF coil accommodated in a gantry. The whole body RF coil includes a first element unit used for transmission of a radio frequency magnetic field; and a second element unit used for reception of a magnetic resonance signal produced from a subject having been applied with the radio frequency magnetic field. The first element unit is a birdcage-type RF coil having two end rings and a plurality of rungs spaced apart from each other along the circumferential direction of the end rings. The second element unit is a microstrip antenna.
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公开(公告)号：US10984241B2
公开(公告)日：2021-04-20
申请号：US15960704
申请日：2018-04-24
发明人： Miyuki Ota , Mitsuo Takagi , Sadanori Tomiha , Satoshi Imai , Masahiro Fukushima , Manabu Ishii , Shinji Mitsui
IPC分类号： G06K9/00 , G06T7/70 , H04N9/31 , G01R33/56 , G01R33/54 , G16H30/20 , G16H50/20 , G16H30/40 , G16H40/63 , G01R33/28 , G06F3/147
摘要： A medical image diagnosis apparatus according to an embodiment includes a storage circuitry and processing circuitry. The storage circuitry is configured to store therein workflow information indicating a plurality of procedures related to a preparation for an imaging process. The processing circuitry is configured to analyze an image obtained by a camera. The processing circuitry is configured to identify which of the plurality of procedures has been performed on the basis of the workflow information and a result of the analysis performed on the image and to cause an informing device to provide information about one or more of the procedures corresponding to a result of the identifying.
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公开(公告)号：US11460524B2
公开(公告)日：2022-10-04
申请号：US17210625
申请日：2021-03-24
IPC分类号： G01R33/34
摘要： A radio frequency coil according to an embodiment is configured to receive a magnetic resonance signal from an examined subject. The radio frequency coil includes an expandable and contractible first element and an expandable and contractible second element. The radio frequency coil has an overlap region where a first loop formed by the first element overlaps with a second loop formed by the second element. The ratio of the area of the overlap region to the area of the region enclosed by the first loop changes in accordance with expansion/contraction of the first element forming the first loop. The first element and the second element include liquid metal in at least a part thereof.
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公开(公告)号：US11372062B2
公开(公告)日：2022-06-28
申请号：US17070078
申请日：2020-10-14
发明人： Sadanori Tomiha , Takafumi Ohishi , Sho Kawajiri , Satoshi Imai
IPC分类号： G01R33/34
摘要： According to one embodiment, a coil element includes an extendable and contractible coil and a capacitor. The capacitor is connected to the coil and has an electrostatic capacity which changes due to a physical change in response to extension or contraction of the coil.
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公开(公告)号：US11061090B2
公开(公告)日：2021-07-13
申请号：US16181772
申请日：2018-11-06
IPC分类号： G01R33/34 , G01R33/422 , G01R33/385
摘要： A magnetic resonance imaging apparatus according to an embodiment includes a Radio Frequency (RF) coil configured to apply an RF magnetic field to a subject. The RF coil includes: a supporting member formed to have a circular cylindrical shape; and an electrically-conductive member which is arranged to extend along an axial direction of the supporting member and through which a radio frequency current flows when the RF magnetic field is generated. The electrically-conductive member includes: a first part provided on an outer circumferential surface of the supporting member; and a second part positioned farther away from an RF shield provided on an outer circumferential side of the RF coil than the first part is, in terms of a radial direction of the supporting member.
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公开(公告)号：US20190137579A1
公开(公告)日：2019-05-09
申请号：US16181772
申请日：2018-11-06
IPC分类号： G01R33/34
摘要： A magnetic resonance imaging apparatus according to an embodiment includes a Radio Frequency (RE) coil configured to apply an RF magnetic field to a subject. The RF coil includes: a supporting member formed to have a circular cylindrical shape; and an electrically-conductive member which is arranged to extend along an axial direction of the supporting member and through which a radio frequency current flows when the RF magnetic field is generated. The electrically-conductive member includes: a first part provided on an outer circumferential surface of the supporting member; and a second part positioned farther away from an RF shield provided on an outer circumferential side of the RF coil than the first part is, in terms of a radial direction of the supporting member.
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公开(公告)号：US10928469B2
公开(公告)日：2021-02-23
申请号：US15967793
申请日：2018-05-01
发明人： Satoshi Imai , Sadanori Tomiha , Keiichiro Ishi , Takaya Mori
IPC分类号： G01R33/36 , G01R33/54 , G01R33/483 , G01R33/58
摘要： A magnetic resonance imaging apparatus according to an embodiment includes a transmission coil and processing circuitry. The transmission coil is configured to apply a high frequency magnetic field to an object. The processing circuitry is configured to: derive, based on at least one of an imaging region and the body shape data of the object, a specific area in a field of view (FOV); and determine, based on a signal within the specific area, an output power level of a high frequency pulse signal supplied to the transmission coil.
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公开(公告)号：US20190317166A1
公开(公告)日：2019-10-17
申请号：US16381451
申请日：2019-04-11
发明人： Satoshi Imai , Sadanori Tomiha
摘要： An MRI apparatus according to an embodiment includes a whole body RF coil accommodated in a gantry. The whole body RF coil includes a first element unit used for transmission of a radio frequency magnetic field; and a second element unit used for reception of a magnetic resonance signal produced from a subject having been applied with the radio frequency magnetic field. The first element unit is a birdcage-type RF coil having two end rings and a plurality of rungs spaced apart from each other along the circumferential direction of the end rings. The second element unit is a microstrip antenna.
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公开(公告)号：US20190302201A1
公开(公告)日：2019-10-03
申请号：US16360591
申请日：2019-03-21
发明人： Shinji Mitsui , Masahiro Fukushima , Satoshi Imai , Miyuki Ota , Sadanori Tomiha
IPC分类号： G01R33/36 , G01R33/34 , G01R33/58 , G01R33/54 , G01R33/385
摘要： According to one embodiment, a magnetic resonance imaging apparatus includes processing circuitry. The processing circuitry generates positional information related to a positional relationship between a transmitter coil and a receiver coil based on a magnetic resonance signal received from a subject. The processing circuitry adjusts an irradiation intensity of an RF pulse to be irradiated on the subject in accordance with the positional information.
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