PRESSURE ACTIVATED DRIVER FOR MAGNETIC RESONANCE ELASTOGRAPHY

A driver for use in applying an oscillating stress to a subject undergoing a magnetic resonance elastography (MRE) examination includes a passive actuator located in the bore of the magnet and in contact with the subject. A remotely located acoustic driver produces acoustic energy in response to an...

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Hauptverfasser: DRESNER, M., ALEX, HULSHIZER, THOMAS, C, EHMAN, RICHARD, L, ROSSMAN, PHILIP, J
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A driver for use in applying an oscillating stress to a subject undergoing a magnetic resonance elastography (MRE) examination includes a passive actuator located in the bore of the magnet and in contact with the subject. A remotely located acoustic driver produces acoustic energy in response to an applied current and this energy is coupled therethrough a flexible tube to the passive actuator. A movable element in the passive actuator vibrates in response to this acoustic energy.