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公开(公告)号：US20240319294A1
公开(公告)日：2024-09-26
申请号：US18576383
申请日：2022-07-04
发明人： Tracy Allyn Wynn , Scott Bradley King , Alton Keel , Timothy Caine Ortiz , Arne Reykowski , Paul Franz Redder , Olli Tapio Friman , Rodrigo Canderon Rico
IPC分类号： G01R33/28 , G01R33/385
CPC分类号： G01R33/288 , G01R33/385
摘要： A device receives during an RF receive cycle a magnetic resonance signal (250) from an area of interest of a patient (20) which is generated in response to a RF transmit signal (350) of an MRI system (100) during an RF transmit cycle. The device includes: an RF receive coil (301); a detector (330); and a first coupling (840) device adapted to couple to an input of the detector (330) a signal (350) which is proportional to a current flowing through the RF receive coil (301) during the RF transmit cycle. The detector (330) outputs a signal (350), which indicates the magnitude and/or phase of the current flowing through the RF receive coil (301) during the RF transmit cycle. The digital signal (350) may be used to stop MR scanning, and/or to notify a system (100) operator, before harm can occur to the patient (20) due to excessive current in the RF receive coil (301) during the RF transmit cycle.
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公开(公告)号：US20240159846A1
公开(公告)日：2024-05-16
申请号：US18283826
申请日：2022-03-18
发明人： Scott Bradley King , Alton Keel , Arne Reykowski , Timothy Caine Ortiz , Paul Franz Redder , Rodrigo Calderon Rico , Tracy Allyn Wynn , Olli Tapio Friman
CPC分类号： G01R33/3692 , A61B5/055 , G06T1/0007 , G06T7/00 , G06T2207/10088
摘要： A magnetic resonance (MR) receive coil (18) includes at least one MR coil element (22) configured to receive MR signals excited in a subject disposed in an MR imaging device (10); an antenna (22, 28) comprising the at least one MR coil element (22) or another antenna (28) that is different from the at least one MR coil element; and electronics (24) configured to detect reception of an electromagnetic pulse of interest by the antenna and to perform a coil function based on the detection. The electromagnetic pulse of interest is a radio frequency (RF) pulse generated by the MR imaging device or a magnetic field gradient pulse generated by the MR imaging device.
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