Derivation of McFee-Parungao Orthogonal Leads from Standard Electrocardiogram
نویسندگان
چکیده
The study aim was to construct linear transformations for derivation of McFeeParungao vectorcardiogram (VCG) from 12 standard ECG or Frank VCG and to assess the accuracy of derived electric cardiac signals (ECS) and secondarily derived VCG parameters. A large archive of VCG data recorded in the McFee-Parungao lead system have been accumulated and analyzed in the Cardiology Research Complex (Moscow). To apply this experience to ECSs recorded in the Frank system or standard 12-lead system, linear transformations were constructed basing on sequentially recorded McFee-Parungao VCGs and standard 12-lead ECGs. These transformations provide sufficiently accurate VCGs and secondary vectorcardiographic parameters derived from 12 standard leads.
منابع مشابه
Quantification of the normal Frank and McFee-Parungao orthogonal electrocardiogram at ages two to ten years.
A quantification of the Frank and McFee-Parungao orthogonal electrocardiogram of 175 normal children, ages 2-10 years is presented. There are significant differences in age groups 2-5 and 6-10. The QRS voltages of the younger group demonstrate 1) greater Z anterior, 2) greater initial X right, 3) greater terminal X right, 4) smaller Y inferior, and 5) the T vector is oriented more posteriorly. ...
متن کاملQuantitation of the normal Frank and McFee-Parungao orthogonal electrocardiogram in the adolescent.
A detailed linear, circular and spherical quantitation of the Frank and McFee-Parungao orthogonal electrocardiograms of 166 adolescents is presented. There are significant differences between pubescent males and females: (1) QRS and T magnitudes in the male are greater than in the female. (2) The difference in magnitudes is greater at age 11-15 than at age 16-19, presumably because females reac...
متن کاملComparison of a good orthogonal lead system and one additional chest lead with the conventional 12-lead electrocardiogram.
In a study of the McFee-Parungao system of orthogonal lead electrocardiography 452 electrocardiograms were recorded on 111 normal subjects and 201 patients with cardiovascular disease and abnormalities in the conventional 12-lead electrocardiogram. Comparison of the two lead systems and evaluation of criteria for the electrocardiographic diagnosis of normal, right ventricular hypertrophy, left ...
متن کاملClinical observations with an orthogonal lead system.
TI IE MERITS of several orthogonal lead systems are being investigated and it is possible that records from one or more of the systems will be incorporated into clinical electrocardiography. Selection of a system for clinical use involves consideration of its accuracy, convenience, and reproducibility of the results it yields. An electrode arrangement termed the "axial" system has recently been...
متن کاملCorrected (Frank), uncorrected (cube), and standard electrocardiographic lead systems in recording augmented right ventricular forces in right ventricular hypertension.
In the clinical detection of right ventricular hypertrophy, the electrocardiogram traditionally has been the most useful guide. Yet the fact that no unanimity exists in regard to the electrocardiographic criteria for this diagnosis suggests a lack of specificity of the method. In fact, in some series, with right ventricular hypertrophy proven at necropsy, the accuracy of the electrocardiographi...
متن کامل