Improvement of patient communication intercom with active filtering of scanner noise for high field MRI scanners

Magnetic Resonance Imaging (MRI) equipment manufacturers are required to provide functional patient-operator communication throughout the diagnostic procedure. This is accomplished with a patient intercom. Due to the nature of the operation of an MRI scanner, a great deal of noise is created. In ear...

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Bibliographic Details
Main Authors: Coulter, R.L., Druzgaiski, C.
Format: Conference Proceeding
Language:English
Subjects:
Acoustic noise
Active filters
Active noise reduction
Filtering
Integrated circuit noise
Magnetic fields
Magnetic noise
Magnetic resonance imaging
Superconducting coils
Superconducting device noise
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Summary:Magnetic Resonance Imaging (MRI) equipment manufacturers are required to provide functional patient-operator communication throughout the diagnostic procedure. This is accomplished with a patient intercom. Due to the nature of the operation of an MRI scanner, a great deal of noise is created. In early generation MRI scanners, the noise was low enough in magnitude to allow a patient in distress to alert the operator using the intercom. Recent advances in MRI techniques have resulted in the creation of much faster and more powerful, however noisier procedures. As a result, the patient-operator intercom alone has become inadequate to insure patient safety. This project evaluated methods to enhance functionality of the intercom and implemented a system improving communication.
DOI:10.1109/IEMBS.1993.979172