System to monitor temperature near an invasive device during mag

Details System to monitor temperature near an invasive device during mag System to monitor temperature near an invasive device during mag

1996-09-09

1998-03-24

Lateef, Marvin M.

Surgery

Truss

Pad

1286532, 128736, A61B 500

Patent

active

057301344

ABSTRACT:
A temperature monitoring system employs a temperature detection means incorporated into an invasive device intended to be placed within a body during a magnetic resonance procedure. The temperature monitoring system is used to monitor temperature rises in tissue arising from the creation of electric fields within the tissue. These electric fields are created by the application of RF pulses during the course of a magnetic resonance procedure which induce electrical current in the invasive device. It the detected temperature rise exceeds a selected threshold, the temperature monitoring system can cause the magnetic resonance imaging system to either reduce RF power or terminate the procedure. An optical coupling may be used between the imaging or tracking RF coil and the MR receiver to eliminate heating induced by the application of RF pulses during the procedure.

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"Fluoroptic Thermometer Model 790 Operator's Guide", pp. 4.1-4.6. Luxtron Corp., 2775 Northwestern Parkway, Santa Clara, CA 95051-0903, Copyright Dec. 1992.

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