RADIO FREQUENCY RECEIVER ARRAY COIL FOR MAGNETIC RESONANCE IMAGING SYSTEM, METHOD OF USE OF THE COIL, AND MRI SYSTEM COMPRISING THE COIL

RADIO FREQUENCY RECEIVER ARRAY COIL FOR MAGNETIC RESONANCE IMAGING SYSTEM, METHOD OF USE OF THE COIL, AND MRI SYSTEM COMPRISING THE COIL

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);...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Wynn, Tracy Allyn, Redder, Paul Franz, King, Scott Bradley, Reykowski, Arne, Ortiz, Timothy Caine, Friman, Olli Tapio, Canderon Rico, Rodrigo, Keel, Alton
Format: Patent
Sprache:eng
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Beschreibung
Zusammenfassung: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.