ArticleJournal of electrocardiology
QRS 3D voltage-time integral in narrow QRS complex - Establishing the normal reference range.
Article in Journal of electrocardiology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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11 authors.
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Abstract
backgroundVectorcardiographic 3D QRS voltage-time integral (VTI
methodsWe retrospectively analyzed 12‑lead ECGs of healthy adults (2010-2014) and compared them to patients with cardiomyopathy with reduced ejection fraction (EF) <50 %. Using the Kors matrix, 12‑lead ECGs with QRS duration ≤120 ms were converted to vectorcardiographic X, Y, and Z leads. VTI
resultsThe study included 468 healthy adults (age 44.6 ± 17.0 years; 63.9 % female) and 314 patients with cardiomyopathy (age 62.1 ± 14.0 years; 34.4 % female). VTI
conclusionVTI
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