Self-similarity behavior characterization of Fetal Heart Rate signal in healthy and Intrauterine Grow Retardated fetuses
In this paper we deal with the problem of the interpretation of the fetal heart rate (FHR) signal. From literature is known that FHR contains both linear and non linear components. Starting from this consideration we analyzed FHR as a fractal time series and we evaluated its self similarity behavior...
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| creator | Esposti, F. Signorini, M.G. Ferrario, M. Magenes, G. |
| description | In this paper we deal with the problem of the interpretation of the fetal heart rate (FHR) signal. From literature is known that FHR contains both linear and non linear components. Starting from this consideration we analyzed FHR as a fractal time series and we evaluated its self similarity behavior using the Hurst's coefficient (H). We first evaluated the stationarity of FHR time series and then we estimated H with Detrend fluctuation analysis (DFA) method. We calculated Hurst's coefficient for healthy fetuses and for fetuses affected by intrauterine grow retardation (IUGR). Results provided H=0.350plusmn0.064 (avgplusmnstd) for healthy patients and H=0.461plusmn0.059 for IUGR. It is also shown that IUGR patients exhibit a "less non-stationary" and longer-memory behavior than normals with a reduced information content of FHR signal. We propose for this phenomenon a physiological explanation connected with the abnormal autonomic nervous system development of IUGR patients |
| doi_str_mv | 10.1109/IEMBS.2006.260481 |
| format | Conference Proceeding |
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From literature is known that FHR contains both linear and non linear components. Starting from this consideration we analyzed FHR as a fractal time series and we evaluated its self similarity behavior using the Hurst's coefficient (H). We first evaluated the stationarity of FHR time series and then we estimated H with Detrend fluctuation analysis (DFA) method. We calculated Hurst's coefficient for healthy fetuses and for fetuses affected by intrauterine grow retardation (IUGR). Results provided H=0.350plusmn0.064 (avgplusmnstd) for healthy patients and H=0.461plusmn0.059 for IUGR. It is also shown that IUGR patients exhibit a "less non-stationary" and longer-memory behavior than normals with a reduced information content of FHR signal. 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We propose for this phenomenon a physiological explanation connected with the abnormal autonomic nervous system development of IUGR patients</description><subject>Biomedical engineering</subject><subject>Cities and towns</subject><subject>DFA</subject><subject>Doped fiber amplifiers</subject><subject>Fetal heart rate</subject><subject>FHR</subject><subject>Fluctuations</subject><subject>Fractals</subject><subject>Frequency</subject><subject>Hurst's coefficient</subject><subject>IUGR</subject><subject>Periodogram</subject><subject>Signal analysis</subject><subject>Time series analysis</subject><subject>USA Councils</subject><issn>1557-170X</issn><isbn>9781424400324</isbn><isbn>1424400325</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2006</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNotj9tKw0AYhBdUbKl9APFmXyBxz5tcaukJKkKr4F35k_1jVtJENlu1Pr0RnZuBGb6BIeSas5Rzlt-u5w_3u1QwZlJhmMr4GZnmNuNKKMWYFOqcjLnWNuGWvYzItO_f2CCZD7W4JCNuc2WsUmPytcOmSnp_8A0EH0-0wBo-fBdoWUOAMmLw3xB919KuoguM0NAVQoh0CxFp71_bIfEtrRGaWJ8otI6u2xjg-Iu2SJeh-6TbAQxuIBytMB577K_IRQVNj9N_n5Dnxfxptko2j8v17G6TeG5YTHQ5HOYARrtKSWszJ2F47FzuMl6C5Y5rLIucMW0kZLnQRVGxkhnpsCqkkBNy87frEXH_HvwBwmmvlJGCK_kDwbVhLw</recordid><startdate>200608</startdate><enddate>200608</enddate><creator>Esposti, F.</creator><creator>Signorini, M.G.</creator><creator>Ferrario, M.</creator><creator>Magenes, G.</creator><general>IEEE</general><scope>6IE</scope><scope>6IH</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIO</scope></search><sort><creationdate>200608</creationdate><title>Self-similarity behavior characterization of Fetal Heart Rate signal in healthy and Intrauterine Grow Retardated fetuses</title><author>Esposti, F. ; Signorini, M.G. ; Ferrario, M. ; Magenes, G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i160t-5c1101aa65df43778d3a604dd9d81ca71d15ecb900563a8925bbf0c063defb323</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Biomedical engineering</topic><topic>Cities and towns</topic><topic>DFA</topic><topic>Doped fiber amplifiers</topic><topic>Fetal heart rate</topic><topic>FHR</topic><topic>Fluctuations</topic><topic>Fractals</topic><topic>Frequency</topic><topic>Hurst's coefficient</topic><topic>IUGR</topic><topic>Periodogram</topic><topic>Signal analysis</topic><topic>Time series analysis</topic><topic>USA Councils</topic><toplevel>online_resources</toplevel><creatorcontrib>Esposti, F.</creatorcontrib><creatorcontrib>Signorini, M.G.</creatorcontrib><creatorcontrib>Ferrario, M.</creatorcontrib><creatorcontrib>Magenes, G.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan (POP) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP) 1998-present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Esposti, F.</au><au>Signorini, M.G.</au><au>Ferrario, M.</au><au>Magenes, G.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Self-similarity behavior characterization of Fetal Heart Rate signal in healthy and Intrauterine Grow Retardated fetuses</atitle><btitle>2006 International Conference of the IEEE Engineering in Medicine and Biology Society</btitle><stitle>IEMBS</stitle><date>2006-08</date><risdate>2006</risdate><spage>6157</spage><epage>6160</epage><pages>6157-6160</pages><issn>1557-170X</issn><isbn>9781424400324</isbn><isbn>1424400325</isbn><abstract>In this paper we deal with the problem of the interpretation of the fetal heart rate (FHR) signal. From literature is known that FHR contains both linear and non linear components. Starting from this consideration we analyzed FHR as a fractal time series and we evaluated its self similarity behavior using the Hurst's coefficient (H). We first evaluated the stationarity of FHR time series and then we estimated H with Detrend fluctuation analysis (DFA) method. We calculated Hurst's coefficient for healthy fetuses and for fetuses affected by intrauterine grow retardation (IUGR). Results provided H=0.350plusmn0.064 (avgplusmnstd) for healthy patients and H=0.461plusmn0.059 for IUGR. It is also shown that IUGR patients exhibit a "less non-stationary" and longer-memory behavior than normals with a reduced information content of FHR signal. 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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Biomedical engineering Cities and towns DFA Doped fiber amplifiers Fetal heart rate FHR Fluctuations Fractals Frequency Hurst's coefficient IUGR Periodogram Signal analysis Time series analysis USA Councils |
| title | Self-similarity behavior characterization of Fetal Heart Rate signal in healthy and Intrauterine Grow Retardated fetuses |
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