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John L. Dart Library
Closed for Maintenance
Phone: (843) 722-7550
West Ashley Library
9 a.m. - 5 p.m.
Phone: (843) 766-6635
Folly Beach Library
9 a.m. - 2 p.m.
*open the 2nd and 4th Saturday
*open the 2nd and 4th Saturday
Phone: (843) 588-2001
Edgar Allan Poe/Sullivan's Island Library
Closed for renovations
Phone: (843) 883-3914
Wando Mount Pleasant Library
9 a.m. - 5 p.m.
Phone: (843) 805-6888
Village Library
9 a.m. - 1 p.m.
Phone: (843) 884-9741
St. Paul's/Hollywood Library
9 a.m. - 5 p.m.
Phone: (843) 889-3300
Otranto Road Library
9 a.m. - 5 p.m.
Phone: (843) 572-4094
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9 a.m. – 5 p.m.
Phone: (843) 849-6161
McClellanville Library
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Keith Summey North Charleston Library
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John's Island Library
9 a.m. - 5 p.m.
Phone: (843) 559-1945
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Phone: (843) 552-6466
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Phone: (843) 805-6930
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Real-time identification and archiving of micro-embolic Doppler signals using a knowledge-based DSP system.
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- Author(s): Fan, L.1; Evans, D. H.1,2 ; Naylor, A. R.2; Tortoli, P.3
- Source:
Medical & Biological Engineering & Computing. Mar2004, Vol. 42 Issue 2, p193-200. 8p. 3 Diagrams, 3 Charts, 5 Graphs.- Subject Terms:
*EXPERT systems; *RESEARCH; DOPPLER ultrasonography; CEREBRAL circulation; DIGITAL signal processing; ENDARTERECTOMY; PATIENTS; CEREBRAL embolism & thrombosis; COMPARATIVE studies; DIAGNOSTIC imaging; RESEARCH methodology; MEDICAL cooperation; COMPUTERS in medicine; TRANSCRANIAL Doppler ultrasonography; EVALUATION research; CAROTID endarterectomy - Source:
- Additional Information
- Abstract: Identification of micro-emboli in the cerebral circulation using transcranial Doppler ultrasound provides valuable clinical information, but, currently, embolic signal detection and analysis are significantly limited because they mainly rely on costly off-line analysis by human experts. In this study, a reliable, high-resolution, real-time automated system for the detection and archiving of embolic signals was designed and implemented using expert system theory and modern DSP technology. Preliminary tests were conducted to evaluate the functions and the performance of the system using data from ten carotid endarterectomy patients and two normal volunteers. Using the widely accepted 7 dB threshold for human reliability and a human expert, majority-decision gold standard, the real-time system reached sensitivity and specificity of 93.6% and 99.3%, respectively, which were close to the results obtained by three human experts under ideal laboratory conditions (90.1% and 99.8%, 98.4% and 99.9%, 98.9 and 99.9%). The new system has the potential to be used either as a bedside monitoring and signal acquisition device, or as a laboratory investigation tool. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Medical & Biological Engineering & Computing is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Abstract:
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