https://m2.mtmt.hu/ hun 2026-09-21 06:33 BookChapter 32262365 VALIDATED true Part number: 1-4 0 false 2026-05-21T05:01:59.458+0000 2021-10-01T10:55:30.342+0000 2021-10-01T09:57:14.237+0000 true 569 Balázs András /api/admin/569 Admin true 2022-02-20T18:37:15.249+0000 2022-02-20T18:37:15.249+0000 2021-10-01T16:38:57.384+0000 true 569 Balázs András /api/admin/569 Admin true true false true 25 25 /api/publicationtype/25 PublicationType 2 true 25 BookChapter true 10000312 Conference paper true 25 25 /api/publicationtype/25 PublicationType 2 true 25 BookChapter /api/subtype/10000312 Konferenciaközlemény SubType 228 true 10000312 true 1 /api/category/1 Category true 1 Wu, Y Frequency-based analysis of diastolic function 107 110 107 4 2003 Quantitative determination of the filling (diastolic) function of the heart has been primarily correlative rather than causal and has been thwarted by the inability to define sensitive and specific non-invasive numerical indexes. In analogy to impedance, Z(omega)=V(omega)/I(omega) relating voltage V to current I in circuit theory, we introduce the concept of frequency-based analysis of diastolic function (DF) by analyzing the left ventricular (LV) filling pressure (P) to flow(Q) relation in terms of impedance as, Z(omega)=P(omega)/Q(omega). This allows abnormal DF to be viewed as a state of impedance mismatch between pressure and flow, relative to normal. Simultaneous pressure-flow data in 11 subjects was recorded during catheterization. Analysis of variance between groups (ANOVA) shows that the direct current (DC) component of impedance, Z(0) and the first harmonic coefficient, Z(1), differentiated between normal and abnormal DF groups (p<0.05). We conclude frequency-based analysis of DF differentiates between normal and abnormal DF states, elucidates the physiology of normal filling as a low-pass filter and has potential as a method for noninvasive DF quantitation. 2021 true true true true false NONE 2026-05-21 false 5 0 5 4 0 5 5 5 3 5 5 4 4 4 1 0 5 4 5 4 0 3 3 Folyóiratcikk Journal Article 24 5 Könyvrészlet Chapter in Book 25 0 Könyv Book 23 0 Egyéb konferenciaközlemény Conference paper 31 0 Egyéb konferenciakötet Conference proceedings 32 0 Oltalmi formák Protection forms 26 0 Disszertáció Thesis 28 0 Egyéb Miscellaneous 29 0 Alkotás Achievement 22 0 Kutatási adat Research data 33 0 Folyóiratcikk Journal Article 24 0 0 0 Könyvrészlet Chapter in Book 25 0 0 0 Könyv Book 23 0 0 0 Egyéb konferenciaközlemény Conference paper 31 0 0 0 Egyéb konferenciakötet Conference proceedings 32 0 0 0 Oltalmi formák Protection forms 26 0 0 0 Disszertáció Thesis 28 0 0 0 Egyéb Miscellaneous 29 0 0 0 Alkotás Achievement 22 0 0 0 Kutatási adat 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/api/publicationidentifier/19461057 PlainSource 1 /api/publicationsource/1 PublicationSourceType 10003 /api/publicationsourcetype/10003 false true true WoS WoS https://www.webofscience.com/wos/woscc/full-record/@@@ true true 1 true IDENTICAL 000189395300030 https://www.webofscience.com/wos/woscc/full-record/000189395300030 false true Keyword 10275 /api/keyword/10275 true 10275 true Keyword 10287 /api/keyword/10287 true 10287 true Keyword 1084077 /api/keyword/1084077 true 1084077 true Keyword 1187752 /api/keyword/1187752 true 1187752 true Keyword 1493264 /api/keyword/1493264 true true Keyword 1493744 /api/keyword/1493744 true true Keyword 1494901 /api/keyword/1494901 true true Keyword 1506322 /api/keyword/1506322 true true Keyword 1736612 /api/keyword/1736612 true true Keyword 1737269 /api/keyword/1737269 true true Reference 24080744 /api/reference/24080744 1 false true Reference 24080743 /api/reference/24080743 2 false true Reference 24080742 /api/reference/24080742 3 false true Reference 24080741 /api/reference/24080741 4 false true Reference 24080740 /api/reference/24080740 5 false true Reference 24080739 /api/reference/24080739 6 false true Reference 24080738 /api/reference/24080738 7 false true Reference 24080737 /api/reference/24080737 8 false true Reference 24080736 /api/reference/24080736 9 false true Reference 24080735 /api/reference/24080735 10 false true Reference 24080734 /api/reference/24080734 11 false true Reference 24080733 /api/reference/24080733 12 false true Reference 24080732 /api/reference/24080732 13 false true /api/publication/32262365 <div class="BookChapter Publication long-list"> <div class="authors"> <img title="Forrásközlemény" style="float: left" src="/frontend/resources/grid/publication-core-icon.png"> <img title="Idézőközlemény" style="float: left" src="/frontend/resources/grid/publication-citation-icon.png"> <div class="autype autype0"> <span class="author-name" >Wu Y ✉ </span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" >Bowman A </span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" >Chung C </span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" >Karamanoglu M </span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10065580"><a href="/gui2/?type=authors&mode=browse&sel=10065580" target="_blank">Kovacs SJ (<span class="authorship-author-name">Kovács Sándor</span> <span class="authorAux-mtmt"> Kardiovasculáris betegségek, Fiziologia, Biomed...</span>) </a> </span> </div> </div> <div class="title"><a href="/gui2/?mode=browse&params=publication;32262365" target="_blank">Frequency-based analysis of diastolic function</a></div> <div class="InBook"><div class="chapter-in">In:</div> <div class="authors"> <div class="autype autype-1"> <span class="author-name" >Leder RS </span> (szerk.) </div> </div> <div class="booktitle"><a href="/gui2/?mode=browse&params=publication;2248899" target="_blank">PROCEEDINGS OF THE 25TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-4 </a></div> <div class="conference"> Konferencia helye, ideje: <span class="location">Cancun, Mexikó <span class="conference-date">2003.09.17. - 2003.09.21.</span> (<span class="conference-organizer">Institute of Electrical and Electronics Engineers (IEEE)) </div> <span class="publishedAt">Piscataway (NJ): <span class="publishers">Institute of Electrical and Electronics Engineers (IEEE)</span>, <span class="page"> pp 107-110 </span> <span class="year">(2003)</span> ( <span class="seriesTitle">Proceedings - Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)</span> <span class="issn">1094-687X</span> <span class="issn">1558-4615</span> ) </div> <div class="pub-footer"> <span class="language" xmlns="http://www.w3.org/1999/html">Nyelv: Angol | </span> <span class="identifiers"> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="10.1109/IEMBS.2003.1279522" target="_blank" href="https://doi.org/10.1109/IEMBS.2003.1279522"> DOI </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="000189395300030" target="_blank" href="https://www.webofscience.com/wos/woscc/full-record/000189395300030"> WoS </a> </span> </span> <span class="bookchapter-ids">Befoglaló link(ek):</span> <span class="identifiers"> <span class="id identifier oa_none" title="none"> <span class="isbnOrIssn"> ISBN: </span> <a style="color:black" title="0780377893" target="_blank" href="https://www.worldcat.org/search?q=isbn%3A0780377893"> 0780377893 </a> </span> <span class="id identifier oa_none" title="none"> <span class="isbnOrIssn"> ISBN: </span> <a style="color:black" title="9780780377899" target="_blank" href="https://www.worldcat.org/search?q=isbn%3A9780780377899"> 9780780377899 </a> </span> </span> <div class="publication-citation" style="margin-left: 0.5cm;"> <span title="Nyilvános idézőközlemények összesen, említések nélkül" class="citingPub-count">Nyilvános idéző összesen: 5</span> | Független: 4 | Függő: 1 | Nem jelölt: 0 | WoS jelölt: 5 | Scopus jelölt:&nbsp;3 | WoS/Scopus jelölt:&nbsp;5 | DOI jelölt:&nbsp;5 </div> <div class="publication-citation"> <a target="_blank" href="/api/publication?cond=citations.related;eq;32262365&sort=publishedYear,desc&sort=title"> Idézett közlemények száma: 3 </a> </div> <div class="mtid"><span class="long-pub-mtid">Közlemény: 32262365</span> | <span class="status-data status-VALIDATED"> Egyeztetett </span> <span class="long-book-mtid">Befoglaló: 2248899</span> Forrás Idéző | <span class="type-subtype">Könyvrészlet ( Konferenciaközlemény ) </span> | <span class="pub-category">Tudományos</span> | <span class="publication-sourceOfData">WOS TAGGED</span> </div> <div class="lastModified">Utolsó módosítás: 2021.10.01. 12:55 Balázs András (MTMT Központ_, admin) </div> <pre class="comment" style="margin-top: 0; margin-bottom: 0;"><u>Megjegyzés</u>: Part number: 1-4</pre> </div> </div>