electrocardiogram- a graphical recording of the cardiac cycle produced by an electrocardiograph cardiogram,ECG,EKG checkup,health check,medical,medical checkup,medical exam,medical examination- a thorough physical examination; includes a variety of tests depending on the age and sex and health of the ...
3). If occurring very early during the cardiac cycle, APCs may be blocked in the refractory AV node, so that the P′ wave is not followed by a QRS complex, or the impulse is aberrantly conducted through the partially refractory ventricular conduction system, resulting in an abnormally shaped...
Automatic detection of the QRS complex on ECG is used on most cardiac ultrasound scanners to separate recorded ultrasound data into cardiac cycles for continuous playback and storage. On small hand-held scanners it is unpractical to connect ECG cables. We aim to do automatic cardiac cycle separati...
A Long‐RP Narrow QRS Complex Tachycardia With Alternating Cycle Length: What is the Mechanism?A 30-year-old woman with a 4-year history of regular paroxysmal palpitations in the absence of structural heart disease was referred for electrophysiological study and catheter ablation. The baseline sinus...
An electrocardiogram, or EKG, shows the electrical activity of the heart during cardiac cycles. A EKG reading for one complete cardiac cycle includes the P wave, QRS complex, and T wave.Answer and Explanation: Become a Study.com member to unlock this answer! Create your account View this ...
raw ECG signal in the MIT-BIH-AR database sampled at 360 Hz, all of the 56 samples equivalent to 0.78 s in average difference signal and 0.16 s in difference signal. In this way, it can cover a whole heartbeat cycle as well as QRS complex when the current detection point is R-peak...
The QRS complex was measured as the interval between the initial QRS depolarization and the J point. Value of the New Spline QTc Formula in Adjusting for Pacing-Induced Changes in Heart Rate The analysis of the different cardiac waves in the ECG signals is of major importance; the P wave re...
A narrow QRS complex, short RP tachycardia was re-producibly induced by programmed atrial stimulation with a single extrastimulus followed by a wide QRS tachycardia at the same cycle length (358 ms). Figures 1 and 2 show the 12-lead ECG and the intracardiac recordings during the conversion ...
Visible fragmentation of the QRS complex has repeatedly been described as an indicator of increased risk of adverse cardiac events46,47,48,49. It has also been observed that fragmented QRS complex is more often present in males compared to females50and that, in cardiac patients, QRS abnormalities...
In normal sinus rhythm, what does the P-wave, the PR interval, QRS complex, and QT interval reflect?ECG:An ECG, or electrocardiogram, is an electrical readout of the heart which measures the electrical output of all heart chambers during cardiac cycles. Th...