A universal system of electrode placement for electrocardiography and spatial vectorcardiography.
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Electrocardiography↗
Biomedical subjects
R A HELM
Publications and source records attributed to R A HELM.
Mathematical methods for analyzing leads.
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Electrocardiography↗
Is there an entity primary pulmonary hypertension?
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Familial Primary Pulmonary Hypertension↗
The scalar presentation of orthogonal leads.
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Humans↗
An accurate lead system for spatial vectorcardiography.
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Humans↗
A switching circuit for three-plane stereovectorcardiography.
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Humans↗
The effect of boundary contour on the distribution of dipole potential in a volume conductor.
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Electrocardiography↗
The lead vectors of multiple dipoles located on a transverse plane of Frank's homogeneous torso model.
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Genetic Vectors↗
Vectorcardiographic notation.
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Vectorcardiography↗
Nonspecific pericarditis and myocardial infarction.
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Cardiovascular Diseases↗
Theory of vectorcardiography: a review of fundamental concepts.
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Humans↗
The lead vectors of multiple dipoles located on an electrically homogeneous circular lamina.
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Genetic Vectors↗
Right ventricular hypertrophy. I. Correlation of isolated right ventricular hypertrophy at autopsy with the electrocardiographic findings.
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Autopsy↗
Right ventricular hypertrophy. II. Correlation of electrocardiographic right ventricular hypertrophy with the anatomic findings.
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Cardiomegaly↗
The direction of mean QRS and T vectors. I. Einthoven frontal plane.
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Genetic Vectors↗
Is there an entity primary pulmonary hypertension?
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Familial Primary Pulmonary Hypertension↗
The vectorcardiographic derivation of scalar leads.
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Humans↗