AliveCor's at-home EKG device won FDA clearance to calculate a heart's QT interval, a measurement of how long it takes the ventricles to contract and relax. This is vital given that some drugs can ...

Can you correctly measure the QT interval and identify factors and medications that cause prolongation?

AliveCor is also offering a service called InstantQT™ to assist in measuring QT intervals through an FDA-cleared, ECG processing software.

Although the QT interval normally shortens on the electrocardiogram with increasing heart rate, that response was blunted, on average, in the long-QT patients.

AliveCor gets FDA clearance for feature to measure QT interval AliveCor's at-home EKG device won FDA clearance to calculate a heart's QT interval, a measurement of how long it takes the ventricles ...

Methods: We used standard 12-lead electrocardiograms, K-shell X-ray fluorescence, and graphite furnace atomic absorption spectrometry to measure QT interval, bone lead, and blood lead levels, ...

ADInstruments’ PowerLab systems are being used to establish the zebrafish as a model for assessing drug effects on cardiac function, using QT prolongation as a key indicator.

Dispersion of the QTc interval is a measure of interleads QT variability, and it reflects regional variation in ventricular repolarization.