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公开(公告)号：US20220244332A1
公开(公告)日：2022-08-04
申请号：US17659719
申请日：2022-04-19
IPC分类号： G01R33/3815 , G01R33/38 , H01F6/04
摘要： An intelligent control system (S) and methods (M, M1, M2) for dynamically controlling components of an MRI system (10), the intelligent control system (S) involving a processor (700), configurable to: determine a current-use state of each component; optimize energy usage among the components based on the current-use state of each component, whereby an optimal energy usage is provided; alter an energy consumption profile of each component based on the optimal energy usage, whereby an altered energy consumption for each component is provided; automatically activate power to each component based on the altered energy consumption when the MRI system (10) is to be operated; and automatically deactivate power to each component based on the altered energy consumption when the MRI system (10) is not to be operated, whereby the MRI system (10) is automatically operable when needed and inoperable when not needed, continually powering the components is eliminated, and an average energy consumption of the MRI system (10) is reduced over its lifespan.
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公开(公告)号：US20220137167A1
公开(公告)日：2022-05-05
申请号：US17645108
申请日：2021-12-20
发明人： Geron André BINDSEIL , Ian Robert Oliphant CONNELL , William Bradfield HANDLER , Chad Tyler HARRIS
IPC分类号： G01R33/385
摘要： A coil apparatus and methods for magnetic resonance imaging involving a wire winding, the wire winding having at least one of: a hollow cross-section wire and a solid cross-section wire, the solid cross-section wire having at least one of: a solid small cross-section wire and a solid large cross-section wire, the solid large cross-section wire having a thickness greater than that of the solid small cross-section wire, and the solid small cross-section wire disposed in one of adjacent and proximate at least one of the hollow cross-section wire and the solid large cross-section wire, whereby at least one of current density, winding density, and heat extraction are increasable.
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公开(公告)号：US20220390535A1
公开(公告)日：2022-12-08
申请号：US17819690
申请日：2022-08-15
IPC分类号： G01R33/28 , G01R33/385 , G01R33/42 , G01V3/175
摘要： Systems and methods for imaging a subject with a magnetic resonance imaging system using magnetic field gradients generated by one or more gradient coils operating with gradient coil settings, such as gradient amplitudes and gradient slew rates, above a threshold at which peripheral nerve stimulation is likely to be induced in the subject. A dielectric assembly is positioned adjacent a skin surface of the subject such that the dielectric assembly attenuates the local electric fields induced by the magnetic field gradients, which would be likely to induce PNS when the dielectric assembly is not arranged adjacent the skin surface of the subject. As a result of the dielectric assembly placed adjacent the skin surface of the subject, the gradient coil settings can be increased above the threshold without inducing PNS in the subject.
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公开(公告)号：US20210231758A1
公开(公告)日：2021-07-29
申请号：US16991967
申请日：2020-08-12
IPC分类号： G01R33/385
摘要： The present disclosure reports on a method to first determine the required electromagnetic stream function, and then iterate on the contouring of the stream function to optimize the force, torque, shielding, and/or mutual inductance of the design after-the-fact without compromising the electromagnetic performance and an electromagnetic coil manufacture according to the method. These parameters are sensitive to the precise positioning of the discrete wires.
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公开(公告)号：US20220146612A1
公开(公告)日：2022-05-12
申请号：US17580385
申请日：2022-01-20
发明人： Geron Andre BINDSEIL , Blaine Alexander CHRONIK , Ian Robert Oliphant CONNELL , Andrew Thomas CURTIS , William Bradfield HANDLER , Chad Tyler HARRIS , Jeff Alan STAINSBY , Philip J. BEATTY
IPC分类号： G01R33/385 , G01R33/38
摘要： An asymmetric electromagnet system, method, and method of producing an asymmetric electromagnet system, wherein the asymmetric electromagnet system is for generating an imaging magnetic field in an imaging region with an imaging isocentre, the imaging region being asymmetrically positioned within a gradient coil bore inside a magnetic resonance imaging (MRI) system during imaging, the electromagnet assembly comprising: an asymmetric gradient coil configured to generate a gradient field in the asymmetrically positioned imaging region, at least one gradient axis having the gradient field with a constant offset component such that the position at which the gradient field passes through zero is offset with respect to the imaging isocentre of the asymmetrically positioned imaging region.
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公开(公告)号：US20220034983A1
公开(公告)日：2022-02-03
申请号：US16942412
申请日：2020-07-29
发明人： Geron Andre BINDSEIL , Blaine Alexander CHRONIK , Ian Robert Oliphant CONNELL , Andrew Thomas CURTIS , William Bradfield HANDLER , Chad Tyler HARRIS , Jeff Alan STAINSBY , Philip J. BEATTY
IPC分类号： G01R33/385 , G01R33/38
摘要： An asymmetric electromagnet system, method, and method of producing an asymmetric electromagnet system, wherein the asymmetric electromagnet system is for generating an imaging magnetic field in an imaging region with an imaging isocentre, the imaging region being asymmetrically positioned within a gradient coil bore inside a magnetic resonance imaging (MRI) system during imaging, the electromagnet assembly comprising: an asymmetric gradient coil configured to generate a gradient field in the asymmetrically positioned imaging region, at least one gradient axis having the gradient field with a constant offset component such that the position at which the gradient field passes through zero is offset with respect to the imaging isocentre of the asymmetrically positioned imaging region.
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