title: Wireless electrocardiogram transmission in ISM band: an approach towards telecardiology.
abstract: Remote monitoring of biomedical signals provides an opportunity to extend health care service to a distant patient. In this paper, a short range wireless telecardiology system is described with the objective to transmit electrocardiogram signal for remote end acquisition. The acquired signal was compressed using a combination of modified delta encoding and run length encoding technique and transmitted using a wireless transceiver operating in 2.4 GHz industrial, scientific and medical band to a distance of 400 ft. In the receiving end, error check principle was used to find any data loss before the data is reconstructed for feature extraction. With Physionet data using 8-bit quantization an average compression ratio (CR) of 12.23, percentage root mean squared difference (PRD) of 4.342 and PRD normalized (PRDN) of 9.271 were obtained. With ECG data collected from healthy volunteers, these figures came out to be 14.64, 12.92 and 13.46 respectively. An improvement of performance was observed with 10 bit quantization of ECG data. Computational simplicity of the proposed algorithm provides an opportunity to use a low end microcontroller to implement the compression in standalone hardware.
authors.affiliation: Department of Applied Physics, University of Calcutta, Calcutta, West Bengal, India, rgaphy@caluniv.ac.in.
authors.forename: R
authors.initials: R
authors.lastname: Gupta
authors.forename: M
authors.initials: M
authors.lastname: Mitra
mesh_terms: D000328:Adult; D000465:Algorithms; D002309:Cardiology / Q000295:instrumentation*; D044962:Data Compression; D004562:Electrocardiography / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011846:Radio Waves; D017216:Telemedicine / Q000295:instrumentation*; D059015:Wireless Technology; D055815:Young Adult
references.citation: IEEE Trans Biomed Eng. 1990 Apr;37(4):329-43
references.pmid: 2186997
references.citation: IEEE Trans Biomed Eng. 1996 May;43(5):493-501
references.pmid: 8849462
references.citation: IEEE Trans Biomed Eng. 2000 Nov;47(11):1424-30
references.pmid: 11077735
references.citation: Med Eng Phys. 2007 Dec;29(10):1149-66
references.pmid: 17307014
references.citation: IEEE Trans Inf Technol Biomed. 2006 Jan;10(1):77-83
references.pmid: 16445252
references.citation: IEEE Trans Biomed Eng. 1997 May;44(5):394-402
references.pmid: 9125824
references.citation: IEEE Trans Biomed Eng. 2008 Apr;55(4):1319-26
references.pmid: 18390322
references.citation: IEEE Trans Biomed Eng. 1968 Apr;15(2):128-9
references.pmid: 5648088
references.citation: IEEE Trans Biomed Eng. 1988 Jun;35(6):489-94
references.pmid: 3397104
references.citation: J Med Eng Technol. 2012 Oct;36(7):358-65
references.pmid: 22966809
references.citation: IEEE Trans Inf Technol Biomed. 2010 Jan;14(1):93-100
references.pmid: 19775975
references.citation: J Electrocardiol. 1973;6(2):175-6
references.pmid: 4575375
references.citation: Annu Int Conf IEEE Eng Med Biol Soc. 2009;2009:5409-12
references.pmid: 19963908
references.citation: Int J Med Inform. 2009 Mar;78(3):193-8
references.pmid: 18760959
references.citation: J Med Syst. 2011 Oct;35(5):877-83
references.pmid: 20703683
references.citation: IEEE Trans Inf Technol Biomed. 2012 Jan;16(1):6-16
references.pmid: 21997287
references.citation: Biomed Sci Instrum. 1978 Apr 17-18;14:81-5
references.pmid: 687739
references.citation: IEEE Trans Inf Technol Biomed. 2006 Apr;10(2):229-36
references.pmid: 16617611