Partial Linear Transformation between Frank XYZ Leads Vectorcardiogram and 12-Lead Electrocardiogram Signals

Document Type : Original Article (s)

Authors

1 MSc Student, Department of Medical Physics and Engineering, School of Medicine AND Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran

2 Associate Professor, Department of Medical Physics and Engineering, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

3 Department of Internal Medicine, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

Abstract

Background: Various techniques are used in diagnosing cardiac diseases, one of those is using electrocardiogram tool. In special situations, like ambulatory care and emergency condition, using vectorcardiogram (VCG) regarding its fewer electrodes is much easier and more useful. However, most cardiologists are accustomed to the 12-lead electrocardiogram, even though some of the leads are either nearly aligned with or derived from the others and consequently contain redundant information. The ability to transform from orthogonal 3-lead vectorcardiogram to 12-lead electrocardiogram enables the use of fewer leads for computer visualization, signal analysis and wireless transmission of signals. This can also improve mobility, albeit limited, to the patients.Methods: Vectorcardiogram and electrocardiogram signals used in this study obtained from 50 healthy persons. We presented a statistical approach to transform 3-lead Frank vectorcardiogram to 12-lead electrocardiogram signals and vice versa, based on partial linear transformation (Least Square Method). In addition, our linear transformation function would be compared with Dower and affine transformation function.Findings: For healthy subjects, the partial linear transformation method had different transformation coefficients from other existed methods like Dower and affine ones. Using these new coefficients in partial linear method lead to gain more accurate statistical parameters in calculating the efficiency and accuracy of new method.Conclusion: Regarding the obtained results in this study, electrocardiogram signals derived from vectorcardiogram signals by using our method had more correlation with general electrocardiogram leads than ones derived by using Dower transformation. Therefore, by using this transformation function, achieving to general information of the case’s heart would be possible and useful. 

Keywords

References

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Journal of Isfahan Medical School
Volume 32, Issue 302 - Serial Number 302
July and August 2014
Pages 1557-1566

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History

  • Receive Date: 12 August 2013
  • Revise Date: 26 May 2024
  • Accept Date: 06 April 2022

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