公开(公告)号：US10139464B2

公开(公告)日：2018-11-27

申请号：US15721309

申请日：2017-09-29

Applicant: Hyperfine Research, Inc.

Inventor： Todd Rearick ,  Gregory L. Charvat ,  Matthew Scot Rosen ,  Jonathan M. Rothberg

IPC: G01V3/00 ,  G01R33/56 ,  G01R33/36 ,  G01R33/38 ,  G01R33/385 ,  G01R33/44 ,  G01R33/58 ,  G01R33/48 ,  H01F7/02 ,  H01F7/06 ,  G01R33/381 ,  G01R33/383 ,  G01R33/3875 ,  G01R33/54 ,  G01R33/34 ,  G01R33/28 ,  G01R33/565 ,  G01R33/422

Abstract: According to some aspects, a method of suppressing noise in an environment of a magnetic resonance imaging system is provided. The method comprising estimating a transfer function based on multiple calibration measurements obtained from the environment by at least one primary coil and at least one auxiliary sensor, respectively, estimating noise present in a magnetic resonance signal received by the at least one primary coil based at least in part on the transfer function, and suppressing noise in the magnetic resonance signal using the noise estimate.

公开(公告)号：US09817093B2

公开(公告)日：2017-11-14

申请号：US14845652

申请日：2015-09-04

Applicant: Hyperfine Research, Inc.

Inventor： Jonathan M. Rothberg ,  Matthew Scot Rosen ,  Gregory L. Charvat ,  William J. Mileski ,  Todd Rearick ,  Michael Stephen Poole ,  Keith G. Fife

IPC: G01V3/00 ,  G01R33/38 ,  G01R33/36 ,  G01R33/385 ,  G01R33/44 ,  G01R33/58 ,  G01R33/48 ,  H01F7/02 ,  H01F7/06 ,  G01R33/381 ,  G01R33/383 ,  G01R33/3875 ,  G01R33/54 ,  G01R33/56 ,  G01R33/34 ,  G01R33/422

CPC classification number: G01R33/5608 ,  G01R33/28 ,  G01R33/34007 ,  G01R33/36 ,  G01R33/3614 ,  G01R33/38 ,  G01R33/3802 ,  G01R33/3804 ,  G01R33/3806 ,  G01R33/381 ,  G01R33/383 ,  G01R33/385 ,  G01R33/3852 ,  G01R33/3854 ,  G01R33/3856 ,  G01R33/3858 ,  G01R33/3875 ,  G01R33/422 ,  G01R33/445 ,  G01R33/48 ,  G01R33/543 ,  G01R33/546 ,  G01R33/56 ,  G01R33/56518 ,  G01R33/58 ,  H01F7/02 ,  H01F7/06

Abstract: According to some aspects, a laminate panel is provided. The laminate panel comprises at least one laminate layer including at least one non-conductive layer and at least one conductive layer patterned to form at least a portion of a B0 coil configured to contribute to a B0 field suitable for use in low-field magnetic resonance imaging (MRI).

公开(公告)号：US20170227616A1

公开(公告)日：2017-08-10

申请号：US15498432

申请日：2017-04-26

Applicant: Hyperfine Research, Inc.

Inventor： Michael Stephen Poole ,  Todd Rearick ,  Jonathan M. Rothberg

IPC: G01R33/36 ,  G01R33/383 ,  G01R33/56 ,  G01R33/381 ,  G01R33/44 ,  G01R33/385 ,  G01R33/3875

CPC classification number: G01R33/5608 ,  G01R33/28 ,  G01R33/34007 ,  G01R33/36 ,  G01R33/3614 ,  G01R33/38 ,  G01R33/3802 ,  G01R33/3804 ,  G01R33/3806 ,  G01R33/381 ,  G01R33/383 ,  G01R33/385 ,  G01R33/3852 ,  G01R33/3854 ,  G01R33/3856 ,  G01R33/3858 ,  G01R33/3875 ,  G01R33/422 ,  G01R33/445 ,  G01R33/48 ,  G01R33/543 ,  G01R33/546 ,  G01R33/56 ,  G01R33/56518 ,  G01R33/58 ,  H01F7/02 ,  H01F7/06

Abstract: In some aspects, a magnetic system for use in a low-field MRI system. The magnetic system comprises at least one electromagnet configured to, when operated, generate a magnetic field to contribute to a B0 field for the low-field MRI system, and at least one permanent magnet to produce a magnetic field to contribute to the B0 field.

公开(公告)号：US09625544B2

公开(公告)日：2017-04-18

申请号：US15091971

申请日：2016-04-06

Applicant: Hyperfine Research, Inc.

Inventor： Michael Stephen Poole ,  Todd Rearick ,  Jonathan M. Rothberg

IPC: G01V3/00 ,  G01R33/38 ,  G01R33/36 ,  G01R33/385 ,  G01R33/44 ,  G01R33/58 ,  G01R33/48 ,  H01F7/02 ,  H01F7/06 ,  G01R33/381 ,  G01R33/383 ,  G01R33/3875 ,  G01R33/54 ,  G01R33/56 ,  G01R33/34 ,  G01R33/422

CPC classification number: G01R33/5608 ,  G01R33/28 ,  G01R33/34007 ,  G01R33/36 ,  G01R33/3614 ,  G01R33/38 ,  G01R33/3802 ,  G01R33/3804 ,  G01R33/3806 ,  G01R33/381 ,  G01R33/383 ,  G01R33/385 ,  G01R33/3852 ,  G01R33/3854 ,  G01R33/3856 ,  G01R33/3858 ,  G01R33/3875 ,  G01R33/422 ,  G01R33/445 ,  G01R33/48 ,  G01R33/543 ,  G01R33/546 ,  G01R33/56 ,  G01R33/56518 ,  G01R33/58 ,  H01F7/02 ,  H01F7/06

Abstract: In some aspects, a magnetic system for use in a low-field MRI system. The magnetic system comprises at least one electromagnet configured to, when operated, generate a magnetic field to contribute to a B0 field for the low-field MRI system, and at least one permanent magnet to produce a magnetic field to contribute to the B0 field.

公开(公告)号：US20160169992A1

公开(公告)日：2016-06-16

申请号：US15049309

申请日：2016-02-22

Applicant: Hyperfine Research, Inc.

Inventor： Jonathan M. Rothberg ,  Matthew Scot Rosen ,  Gregory L. Charvat ,  William J. Mileski ,  Todd Rearick ,  Michael Stephen Poole

IPC: G01R33/44 ,  G01R33/3875 ,  G01R33/385

CPC classification number: G01R33/5608 ,  G01R33/28 ,  G01R33/34007 ,  G01R33/36 ,  G01R33/3614 ,  G01R33/38 ,  G01R33/3802 ,  G01R33/3804 ,  G01R33/3806 ,  G01R33/381 ,  G01R33/383 ,  G01R33/385 ,  G01R33/3852 ,  G01R33/3854 ,  G01R33/3856 ,  G01R33/3858 ,  G01R33/3875 ,  G01R33/422 ,  G01R33/445 ,  G01R33/48 ,  G01R33/543 ,  G01R33/546 ,  G01R33/56 ,  G01R33/56518 ,  G01R33/58 ,  H01F7/02 ,  H01F7/06

Abstract: According to some aspects, a laminate panel is provided. The laminate panel comprises at least one laminate layer including at least one non-conductive layer and at least one conductive layer patterned to form at least a portion of a B0 coil configured to contribute to a B0 field suitable for use in low-field magnetic resonance imaging (MRI).

公开(公告)号：US20160069975A1

公开(公告)日：2016-03-10

申请号：US14846158

申请日：2015-09-04

Applicant: Hyperfine Research, Inc.

Inventor： Jonathan M. Rothberg ,  Jeremy Christopher Jordan ,  Michael Stephen Poole ,  Laura Sacolick ,  Todd Rearick ,  Gregory L. Charvat

IPC: G01R33/54 ,  G01R33/3875 ,  G01R33/36 ,  G01R33/385

Abstract: In some aspects, a method of operating a magnetic resonance imaging system comprising a B0 magnet and at least one thermal management component configured to transfer heat away from the B0 magnet during operation is provided. The method comprises providing operating power to the B0 magnet, monitoring a temperature of the B0 magnet to determine a current temperature of the B0 magnet, and operating the at least one thermal management component at less than operational capacity in response to an occurrence of at least one event.

公开(公告)号：US20160069970A1

公开(公告)日：2016-03-10

申请号：US14845949

申请日：2015-09-04

Applicant: Hyperfine Research, Inc.

Inventor： Todd Rearick ,  Gregory L. Charvat ,  Matthew Scot Rosen ,  Jonathan M. Rothberg

IPC: G01R33/385 ,  G01R33/44 ,  G01R33/58

CPC classification number: G01R33/5608 ,  G01R33/28 ,  G01R33/34007 ,  G01R33/36 ,  G01R33/3614 ,  G01R33/38 ,  G01R33/3802 ,  G01R33/3804 ,  G01R33/3806 ,  G01R33/381 ,  G01R33/383 ,  G01R33/385 ,  G01R33/3852 ,  G01R33/3854 ,  G01R33/3856 ,  G01R33/3858 ,  G01R33/3875 ,  G01R33/422 ,  G01R33/445 ,  G01R33/48 ,  G01R33/543 ,  G01R33/546 ,  G01R33/56 ,  G01R33/56518 ,  G01R33/58 ,  H01F7/02 ,  H01F7/06

Abstract: According to some aspects, a method of suppressing noise in an environment of a magnetic resonance imaging system is provided. The method comprising estimating a transfer function based on multiple calibration measurements obtained from the environment by at least one primary coil and at least one auxiliary sensor, respectively, estimating noise present in a magnetic resonance signal received by the at least one primary coil based at least in part on the transfer function, and suppressing noise in the magnetic resonance signal using the noise estimate.

Abstract translation: 根据一些方面，提供了一种抑制磁共振成像系统的环境中的噪声的方法。 该方法包括基于通过至少一个初级线圈和至少一个辅助传感器从环境获得的多个校准测量值来估计传递函数，所述至少一个初级线圈和至少一个辅助传感器至少估计由至少一个初级线圈接收的磁共振信号中存在的噪声 部分地在传递函数上，并且使用噪声估计来抑制磁共振信号中的噪声。

公开(公告)号：US20210116520A1

公开(公告)日：2021-04-22

申请号：US17109320

申请日：2020-12-02

Applicant: Hyperfine Research, Inc.

Inventor： Hadrien A. Dyvorne ,  Todd Rearick

IPC: G01R33/34 ,  G01R33/44

Abstract: Methods and apparatus for reducing noise in RF signal chain circuitry for a low-field magnetic resonance imaging system are provided. A switching circuit in the RF signal chain circuitry may include at least one field effect transistor (FET) configured to operate as an RF switch at an operating frequency of less than 10 MHz. A decoupling circuit may include tuning circuitry coupled across inputs of an amplifier and active feedback circuitry coupled between an output of the amplifier and an input of the amplifier, wherein the active feedback circuitry includes a feedback capacitor configured to reduce a quality factor of an RF coil coupled to the amplifier.

公开(公告)号：US10912517B2

公开(公告)日：2021-02-09

申请号：US16151221

申请日：2018-10-03

Applicant: Hyperfine Research, Inc.

Inventor： Michael Stephen Poole ,  Gregory L. Charvat ,  Todd Rearick ,  Jonathan M. Rothberg

IPC: A61B5/00 ,  A61B5/055 ,  G01R33/34 ,  G01R33/36 ,  G01R33/381 ,  G01R33/385

Abstract: Aspects relate to providing radio frequency components responsive to magnetic resonance signals. According to some aspects, a radio frequency component comprises at least one coil having a conductor arranged in a plurality of turns oriented about a region of interest to respond to corresponding magnetic resonant signal components. According to some aspects, the radio frequency component comprises a plurality of coils oriented to respond to corresponding magnetic resonant signal components. According to some aspects, an optimization is used to determine a configuration for at least one radio frequency coil.

公开(公告)号：US20200233049A1

公开(公告)日：2020-07-23

申请号：US16840149

申请日：2020-04-03

Applicant: Hyperfine Research, Inc.

Inventor： Michael Stephen Poole ,  Cedric Hugon ,  Hadrien A. Dyvorne ,  Laura Sacolick ,  William J. Mileski ,  Jeremy Christopher Jordan ,  Alan B. Katze ,  Jonathan M. Rothberg ,  Todd Rearick ,  Christopher Thomas McNulty

IPC: G01R33/385 ,  A61B90/00 ,  G01R33/48 ,  G01R33/34 ,  A61G13/10 ,  A61B6/00 ,  A61B5/055 ,  G01R33/38 ,  G01R33/56 ,  G01R33/421 ,  G01R33/389 ,  A61B50/13 ,  G01R33/44 ,  G01R33/383

Abstract: According to some aspects, a low-field magnetic resonance imaging system is provided. The low-field magnetic resonance imaging system comprises a magnetics system having a plurality of magnetics components configured to produce magnetic fields for performing magnetic resonance imaging, the magnetics system comprising, a B0 magnet configured to produce a B0 field for the magnetic resonance imaging system at a low-field strength of less than 0.2 Tesla (T), a plurality of gradient coils configured to, when operated, generate magnetic fields to provide spatial encoding of magnetic resonance signals, and at least one radio frequency coil configured to, when operated, transmit radio frequency signals to a field of view of the magnetic resonance imaging system and to respond to magnetic resonance signals emitted from the field of view, a power system comprising one or more power components configured to provide power to the magnetics system to operate the magnetic resonance imaging system to perform image acquisition, and a power connection configured to connect to a single-phase outlet to receive mains electricity and deliver the mains electricity to the power system to provide power needed to operate the magnetic resonance imaging system. According to some aspects, the power system operates the low-field magnetic resonance imaging system using an average of less than 1.6 kilowatts during image acquisition.