Results 221 to 230 of about 25,590,475 (271)
Some of the next articles are maybe not open access.
Computers and Biomedical Research, 1976
Abstract Two algorithms are presented for the detection of P-waves in ECG's. The method is in principle lead-independent. The first routine for the finding of coupled P-waves makes use of the stability of PR-intervals. The second one, for the detection of noncoupled P's, computes the cross-correlation between a ternary detection signal, derived from ...
S J, Hengeveld, J H, Bemmel
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Abstract Two algorithms are presented for the detection of P-waves in ECG's. The method is in principle lead-independent. The first routine for the finding of coupled P-waves makes use of the stability of PR-intervals. The second one, for the detection of noncoupled P's, computes the cross-correlation between a ternary detection signal, derived from ...
S J, Hengeveld, J H, Bemmel
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The American Journal of Cardiology, 1959
Abstract Accurate use of the P wave in electrocardiographic measurernent and in electrocardiographic timing of physiologic events requires prior study in each individual to determine the lead with the maximal P wave duration. Magnification of electrocardiographic waves is useful to determine their duration.
C A, CACERES, G A, KELSER
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Abstract Accurate use of the P wave in electrocardiographic measurernent and in electrocardiographic timing of physiologic events requires prior study in each individual to determine the lead with the maximal P wave duration. Magnification of electrocardiographic waves is useful to determine their duration.
C A, CACERES, G A, KELSER
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Studies in P wave synchronization
The American Journal of Cardiology, 1967Abstract The results of P wave synchronization in man employing a bipolar atrial and a bipolar ventricular catheter have been presented. As the P-ventricular stimulus interval is increased, a ventricular rhythm with retrograde P waves and a re-entry mechanism was found.
P, Samet, C, Castillo, W H, Bernstein
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American Journal of Critical Care, 2003
Scenario: The following ECG waveform was obtained in an 85-year-old male patient admitted to the telemetry unit for evaluation of syncope. His pertinent medical history includes hypertension, coronary artery disease, and prior inferior/lateral myocardial infarction (MI).
Michele M, Pelter, Mary G, Adams
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Scenario: The following ECG waveform was obtained in an 85-year-old male patient admitted to the telemetry unit for evaluation of syncope. His pertinent medical history includes hypertension, coronary artery disease, and prior inferior/lateral myocardial infarction (MI).
Michele M, Pelter, Mary G, Adams
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1979
As already stated in Part 1, clinical interpretation of the electrocardiogram begins with the study of the P wave.
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As already stated in Part 1, clinical interpretation of the electrocardiogram begins with the study of the P wave.
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P Wave in the Electrocardiogram of the Horse
American Journal of Veterinary Research, 1970SUMMARY Orthogonal electrocardiograms, using the McFee axial reference system, were obtained from fifty 2-year-old Thoroughbred horses. The bifid P waves were analyzed for duration and peak amplitude of initial (I) and terminal (II) components and for orientation and spatial magnitude (sM) of peak vectors.
R L, Hamlin +3 more
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Journal of Mathematical Physics, 1987
A theorem is presented that basically states that there are no nontrivial well-behaved, spatially asymptotically flat space-times which are p-p waves at infinity.
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A theorem is presented that basically states that there are no nontrivial well-behaved, spatially asymptotically flat space-times which are p-p waves at infinity.
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Southern Medical Journal, 1978
P waves with a "dome and dart" configuration have been observed in patients with congenital and acquired heart disease while having arrhythmias of left atrial origin. This report describes a patient who has dome and dart P waves that appear to be neither ectopic nor associated with structural heart disease.
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P waves with a "dome and dart" configuration have been observed in patients with congenital and acquired heart disease while having arrhythmias of left atrial origin. This report describes a patient who has dome and dart P waves that appear to be neither ectopic nor associated with structural heart disease.
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Annals of the New York Academy of Sciences, 1964
S E, STEPHENSON, S K, BROCKMAN
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S E, STEPHENSON, S K, BROCKMAN
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