Microprocessor-Based System for Monitoring Spinal Evoked Potentials During Surgery

Recently there has been considerable interest in the use of evoked potentials for monitoring the functional integrity of the spinal cord during surgical procedures such as spinal fusion. This paper describes a signal processing regimen consisting of ensemble averaging and matched filtering, develope...

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Vydané v:	IEEE transactions on biomedical engineering Ročník BME-33; číslo 10; s. 982 - 985
Hlavní autori:	Gopalan, Ramachandran, Parker, Philip A., Scott, Robert N.
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	New York, NY IEEE 01.10.1986 Institute of Electrical and Electronics Engineers
Predmet:	Biological and medical sciences Biomedical Engineering Computer Systems Costs Delay Evoked Potentials, Somatosensory Filtering Humans Laboratories Matched filters Medical sciences Microcomputers Monitoring Monitoring, Physiologic Orthopedic surgery Signal processing Signal to noise ratio Spinal cord Spinal Cord - physiology Spinal Cord - surgery Surgery Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases Human Spinal cord Spine Diseases of the osteoarticular system Intraoperative System Biomedical data processing Surgery Arthrodesis Microprocessor Somatosensory evoked potential Monitoring Biomedical engineering
ISSN:	0018-9294
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Abstract	Recently there has been considerable interest in the use of evoked potentials for monitoring the functional integrity of the spinal cord during surgical procedures such as spinal fusion. This paper describes a signal processing regimen consisting of ensemble averaging and matched filtering, developed to enhance the signal-to-noise ratio of surface-recorded spinal evoked potentials. This system also allows reliable detection of changes in signal latency, amplitude, and waveshape, the main parameters of interest. A microprocessor-based dedicated system for collection and processing of somatosensory evoked potentials data on-line has been designed. Portability, cost effectiveness, and user interaction aresome of the main characteristics of the system design. The performance of the system has been evaluated in the laboratory with simulated data, and data recorded from human subjects. The system performance meets the design expectations. Arrangements are being made to evaluate the system in the clinical environment.
AbstractList	Recently there has been considerable interest in the use of evoked potentials for monitoring the functional integrity of the spinal cord during surgical procedures such as spinal fusion. This paper describes a signal processing regimen consisting of ensemble averaging and matched filtering, developed to enhance the signal-to-noise ratio of surface-recorded spinal evoked potentials. This system also allows reliable detection of changes in signal latency, amplitude, and waveshape, the main parameters of interest. A microprocessor-based dedicated system for collection and processing of somatosensory evoked potentials data on-line has been designed. Portability, cost effectiveness, and user interaction aresome of the main characteristics of the system design. The performance of the system has been evaluated in the laboratory with simulated data, and data recorded from human subjects. The system performance meets the design expectations. Arrangements are being made to evaluate the system in the clinical environment.
Author	Gopalan, Ramachandran Parker, Philip A. Scott, Robert N.
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Keywords	Human Spinal cord Spine Diseases of the osteoarticular system Intraoperative System Biomedical data processing Surgery Arthrodesis Microprocessor Somatosensory evoked potential Monitoring Biomedical engineering
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References	ref13 ref12 cracco (ref5) 1978; 35 ref15 ref11 ref10 chiappa (ref1) 1983 jones (ref4) 1983; 65 b ref2 ref8 gopalan (ref9) 1984 deweerd (ref14) 1981; 41 morn (ref18) 1984 hall (ref7) 1978; 60 a ziemer (ref17) 1976 engler (ref3) 1978; 60 a nuwer (ref6) 1984 deweerd (ref16) 1984
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SubjectTerms	Biological and medical sciences Biomedical Engineering Computer Systems Costs Delay Evoked Potentials, Somatosensory Filtering Humans Laboratories Matched filters Medical sciences Microcomputers Monitoring Monitoring, Physiologic Orthopedic surgery Signal processing Signal to noise ratio Spinal cord Spinal Cord - physiology Spinal Cord - surgery Surgery Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Title	Microprocessor-Based System for Monitoring Spinal Evoked Potentials During Surgery
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