The heartbeat is recorded on an electro- cardiogram (ECG) as a characteristic trace determined by changes in the electrical activity of the heart muscle. The T wave is a component of this waveform that is associated with the repolarization phase of the action potentials. It is asymmetrical in...
9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook hertz (redirected fromT-wave) Thesaurus Medical Encyclopedia hertz (hûrts) n.pl.hertzAbbr.Hz A unit of frequency equal to one cycle per second. See Table atmeasurement. ...
Electrocardiogram (ECG): Definition & Wave Types from Chapter 6 / Lesson 5 243K An electrocardiogram (ECG) records the flow of electrical current on three distinct waves. Explore the purpose of an ECG, the three wave types, and the...
ECG interpretation usually starts with an assessment of the P-wave. The P-wave is a small, positive and smooth wave. It is small because the atria make a relatively small muscle mass. If the rhythm is sinus rhythm (i.e. under normal circumstances) the P-wave vector is directed downwards...
For this aim, the ECG amplitude modulation and the baseline wander in the ST-T segment are approximated by a scaling factor applied to the T wave added to a constant. Thanks to this simplification, the proposed global model of each ST-T segment is constituted by the scaled T wave, an ...
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Anterior precordial T-wave inversion T-wave inversion is often a manifestation ofmyocardial injury. For example, in patients with ananterior myocardial infarction, T-wave inversion is a common ECG finding. Likewise, this is an ECG feature in patients with ARVC/D who have right ventricular free ...
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Kaid KA, Maqsood A, Cohen M, Rothfeld E.Further characterizati on of the“ p ersiste ntjuvenile T- wave pattern ” in adults. J Electrocardiol 29、2008; 41:644 -645.附图型汀段和丁波(B-E)图2. aVR和V导联ST段抬高,其余ST段压低,预示左主干病变J- ,广iL.iJi.fl图3. V2和V3导联...
T波异常的临床意义 哈尔滨医科大学附属第一医院黄永麟 T波概述 •T波是心肌除极后的复极波，其形态取决于复极时心肌的电生理状态及供血情况。•心肌除极时能量消耗极少，而复极时需要更多的能量消耗，因此，T波形态可以反映心脏功能状态。•当心肌复极过程发生离散时,可发生各种心律失常，并提供心脏的预后信息。T...