I N THE study of spatial vectorcardiography in this laboratory it has been the practice to construct wire models of the spatial vectorcardiogram from its frontal and sagittal projections which are presented on two cathode-ray tubes.'' 2 These three-dimensional models seemed necessary to facilitate visualization of the spatial characteristics of the vectorcardiogram, but their construction entai...

Vectorcardiograms and scalar electrocardiograms were recorded in 30 patients before and after aortocoronary saphenous vein bypass surgery to determine whether vectorcardiograms are helpful in making the diagnosis of perioperative transmural infarction. The vectorcardiogram indicated inferior infarction in 2 cases and anterior infarction in 1 case when the diagnosis was not apparent on the elect...

The evolution of the vectorcardiogram obtained with the Frank lead system (Frank, 1956) from normal infants was reported in a previous publication (Namin et al., 1964). It was based on a study of 216 vectorcardiograms on 107 infants. To establish a baseline for the vectorcardiographic recognition of ventricular overwork patterns in children, the vectorcardiograms of a group of normal older chil...

The relations between regional ventricular function and regional and surface ECGs were studied in eight conscious dogs during complete and partial coronary obstructions. Wall thickness and local ECGs were measured using an implanted sonomicrometer, and 11 subcutaneous electrodes were implanted in a modified McFee vectorcardiographic array. Complete obstruction of the circumflex coronary artery ...

Broad clinical application of vectorcardiography has been limited by the lack of a single, widely accepted recording system and the paucity of firmly established diagnostic norms. Most clinical reports and texts, therefore, have used the vectorcardiogram primarily for vivid pictorial display of typical abnormalities. A recent co-operative study, in which interpretation of the vectorcardiogram b...