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International Journal of Advanced Research in Engineering and Technology (IJARET)
Volume 11, Issue 12, December 2020, pp. 1846-1854, Article ID: IJARET_11_12_174
Available online at http://iaeme.com/Home/issue/IJARET?Volume=11&Issue=12
ISSN Print: 0976-6480 and ISSN Online: 0976-6499
DOI 10.34218/IJARET.11.12.2020.174 :
© IAEME Publication Indexed Scopus
A MATHEMATICAL MODEL FOR PREDICTION
OF LVEF FROM ECG IN A THREE-POINT
DETERIORATION STUDY CARDIAC OF
HEALTH IN DIABETICS
Ulka Shirole
Department of Electronics Engineering, A.C.Patil College of Engineering,
University of Mumbai, Mumbai, India
Manjusha Joshi
MPSTME, Department of Electronics and Telecommunication,
NMIMS University, Mumbai, India
ABSTRACT
Cardiac diseases and diabetes are the two major causes of mortality across the
world. In India, the mortality rate is three times higher due to diabetes.
Electrocardiogram (ECG) and 2D Echocardiogram (Echo) are the major noninvasive
techniques used for diagnosis. The research has two major findings, namely the study
of cardiac health deterioration using three-point ECG data and mathematical model
for prediction of 2D Echo from ECG that will help rural people to assess cardiac health
with a degree of correctness equivalent to 2D Echo using ECG signal. ECG data of 16
diabetic subjects and 15 normal subjects in the supine position for 3 times, with a 6
months interval between two recordings, for 10 to 15 minutes were collected. The 2D
echo data at the time of first ECG recording was also collected for diabetics. The result
shows deterioration in linear and nonlinear parameters of heart rate variability (HRV)
values from first readings to third in diabetic subjects, but not in healthy subjects; which
implies deterioration of cardiac health in diabetic subjects. The correlation between
low frequency/high-frequency ratio i.e. (LF/HF) (the ECG parameter) and ECHO
parameter i.e. left ventricle ejection factor (LVEF), in diabetic subjects is found. Our
results show a high correlation (72.92%) between LF/HF with LVEF in diabetic
subjects. Combining with 3 point study result implies that there is deterioration in LVEF
(Echo) also. These highly correlated values are used to develop a mathematical model
to predict LVEF from LF/HF using logistic regression models. We choose an optimum
model to give the best goodness of t. Th results in a polynomial equation with order fi is
6 with R squared value 97.8%. The model helps to estimate LVEF (Echo) from LF/HF
(ECG), thus providing an efficient and cost-effective method for heart checkups in rural
areas where 2D echocardiography facility is lacking and costs ten times more than
ECG.