國家衛生研究院 NHRI:Item 3990099045/4485

NHRI > Institute of Biomedical Engineering and Nanomedicine > Chih-Cheng Lu(2000-2007) > Periodical Articles > Item 3990099045/4485

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/4485

Title:	Pasteless, active, concentric ring sensors for directly obtained Laplacian cardiac electrograms
Other Titles:	直取式拉普拉斯心電圖之主動同心圓電極
Authors:	Lu, C;Tarjan, P
Contributors:	Division of Medical Engineering Research
Abstract:	Abnormal propagation paths and velocities characterize cardiac arrhythmias. Conventional surface ECGs provide only global information and tend to smooth the original signal in time, making it difficult to determine the moment of activation (MoA) at a specific point. We developed an active tripolar concentric ring sensor capable of detecting the Laplacian electrogram (LECG) resolution. The signal conditioning amplifiers and their power supply are mounted directly on the back of the sensor. The uniquely designed instrumentation amplifier (IA) provides high input impedance, therefore skin preparations is not necessary. The inherent common mode rejection (CMR) from the tripolar concentric ring sensor and the high common mode rejection ratio (CMRR=117dB) from the IA yield 0.7 μ V<sub>rms</sub>noise level at the output with gain of 1000. The Directly Obtained Laplacian Cardiac Electrogram is obtained in real time without digital signal processing.
Date:	2002-12
Relation:	Journal of Medical and Biological Engineering. 2002 Dec;22(4):199-203.
Link to:	http://www.airitilibrary.com/searchdetail.aspx?DocIDs=16090985-200212-22-4-199-203-a
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1609-0985&DestApp=IC2JCR
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0036926556
Appears in Collections:	[Chih-Cheng Lu(2000-2007)] Periodical Articles

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