Comparison of Cardiac Function Evaluation by 128-Slice Single Source Retrospectively Gated Cardiac CT and 2D/M- mode Echocardiography
Pankaj Goyal *
Resident at K.G Hospital, Coimbatore, Tamil Nadu, India.
Mansi Jain
Consultant at Life Line Hospital, Bhopal, Madhya Pradesh, India.
Rohit Khisti
B. J. Government Medical College and Sassoon General Hospital, Pune, India.
Kapisoor Singh
Consultant Radiologist, K.G. Hospital and Post Graduate Institute, Coimbatore, India.
*Author to whom correspondence should be addressed.
Abstract
Aims: To study the correlation of Cardiac function/ejection fraction derived from 128 slice MDCT (multi detector computed tomography) results with those of functional data from 2D/M-mode echocardiography.
Study Design: Retrospective, comparative study with empirical data.
Place and Duration of Study: Department of Radiology at K. Govindaswamy Naidu Medical Trust hospital, Coimbatore, between May 2013 and October 2013.
Methodology: For this study, 44 patients (M: F = 35: 9; mean age = 49 years) were randomly chosen who had come between May 2013 and October 2013. All the patients were referred to our department from cardiology as well as non-cardiology OPD’s for coronary CT angiography. Ejection fraction data was obtained using two methods; M-mode echocardiography and 128-slice MDCT using retrospective ECG gated coronary angiographic study.
Results: The mean of LVEF (left ventricle ejection fraction) by echo is 64.73 with standard deviation of +/- 5.48 and the mean of LVEF by cardiac CT is 65.18 with standard deviation of +/- 8.70 with P- value of 0.770 (P value ranges from 0-1) which shows good correlation. The evaluation of LVEF by linear regression analysis show good correlation between LVEF by echo and MDCT. (r= 0.486). [r value ranges between -1 and +1].
Conclusion: This study shows the cardiac function evaluation using 128 slice MDCT is as good as the 2D- echocardiography thus the results are interchangeable between the modalities.
Keywords: Cardiac function, 128- slice MDCT, echocardiography, left ventricle ejection fraction.