Comparative study of 128 layers CTA and ultrasonic cardiogram in asymptomatic diabetic coronary heart disease

ZHA NG Yan-jun; WA NG Jing-zhi; ZHA NG Yan-hong

Abstract：Objective To investigate the differences of coronary artery lesions between diabetes mellitus (DM ) and non‐diabetic coronary heart disease (CHD) patients using coronary CT angiography (CTA) and the consistency with ultrasonic cardiogram in the left ventricular function evaluation .Methods 128‐layer spiral CT and ultrasonic cardiogram were per‐formed in 339 patients with CHD ,and the segment number of coronary artery stenosis was counted both in DM group and non‐DM group .End‐diastolic volume (EDV) ,end‐systolic volume (ESV) ,and ejection fraction (EF) were calculated ac‐cording to CTA and ultrasonic cardiogram data and a consistency check was made upon them .Results The incidence of CHD was 93% in DM group ,significantly higher than that in the non‐DM group which was 70% ( P =0 .03) .271 seg‐ments of artery atherosclerotic plaque were found in 649 segments in DM group ,644 segments of artery atherosclerotic plaque were found in 3080 segments in non‐DM group ( P =0 .00) .The segment number of coronary artery stenosis in DM group was 4 .6 per person ,significantly higher than that in the non‐DM group which was 2 .3 per person ( P=0 .02) . The severity of coronary artery stenosis was significantly increased in DM group .There was no significant difference in EDV ,ESV ,EF and ultrasonic cardiac function indexes between the two methods ( P >0 .05) .Conclusion MSCT can display the differences in the degree of coronary artery lesions between DM group and non‐DM group ,and it was reliable for evaluating the left ventricular function .MSCT can be applied to the early screening of asymptomatic DM patients with CHD .