000131484 001__ 131484
000131484 005__ 20240731103339.0
000131484 0248_ $$2sideral$$a136870
000131484 037__ $$aART-2023-136870
000131484 041__ $$aeng
000131484 100__ $$aGómez Fonseca, Neurys
000131484 245__ $$aTime-Warping Based End-of-T-Wave Shape Marker Reflects Repolarization Changes During Ischemia
000131484 260__ $$c2023
000131484 5203_ $$aThis work proposes to use a warping-based T-wave morphology index, dw , estimated only in the T-wave peak-to-end interval, to capture ischemia-induced dispersion of repolarization, avoiding the influence of ST segment elevation/depression. ECG recordings acquired during elective balloon percutaneous coronary intervention (PCI) were analyzed, together with their baseline recordings. A dw series was obtained by comparing the morphology of Mean Warped T wave peak-to end intervals (MWTPE) along the recordings with a reference MWTPE. A relative marker, RPCAd , normalizing the dw changes during PCI relative by the magnitude of the change during baseline recordings, was used to quantify the relative morphological variations generated by ischemia. dw changes during PCI followed a well marked gradual increasing trend as inflation time progressed reaching at the occlusion end a median RPCAd value of 9.44 ms, (range from 1.01 to 80.74). During baseline recordings dw remained stable with median RPCAd value of 1.00 ms, (range from 0.03 to 2.93 ms). Repolarization changes achieved RPCAd > 1,2, 5, 10 during PCI in 94.1%, 85.11%, 64.4% and 48.5% of patients, respectively, being significantly higher than its corresponding control recordings. In conclusion, the dw marker is able to quantify ischemia-induced repolarization dispersion changes in a robust manner independent of the ST changes.
000131484 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000131484 592__ $$a0.227$$b2023
000131484 593__ $$aComputer Science (miscellaneous)$$c2023
000131484 593__ $$aCardiology and Cardiovascular Medicine$$c2023
000131484 594__ $$a1.1$$b2023
000131484 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000131484 700__ $$aRamírez, Julia
000131484 700__ $$0(orcid)0000-0003-4130-5866$$aLaguna, Pablo$$uUniversidad de Zaragoza
000131484 700__ $$aMartínez, Juan Pablo
000131484 7102_ $$15008$$2800$$aUniversidad de Zaragoza$$bDpto. Ingeniería Electrón.Com.$$cÁrea Teoría Señal y Comunicac.
000131484 773__ $$g49 (2023), [4 pp.]$$pComput. cardiol.$$tComputing in Cardiology$$x2325-8861
000131484 8564_ $$s444725$$uhttps://zaguan.unizar.es/record/131484/files/texto_completo.pdf$$yVersión publicada
000131484 8564_ $$s2742867$$uhttps://zaguan.unizar.es/record/131484/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000131484 909CO $$ooai:zaguan.unizar.es:131484$$particulos$$pdriver
000131484 951__ $$a2024-07-31-09:49:21
000131484 980__ $$aARTICLE