"What's been constant about T-wave alternans throughout the past few years is the negative predictive value," Costantini told heart wire. "If the test is normal, the likelihood of having a cardiac ...
February 9, 2006-- Microvolt T-wave alternans (MTWA), an electrocardiographic (ECG) test that measures subtle variations in the heart beat, can identify heart disease patients who are either at high ...
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