Analysis of the clinical value of combining cardiac ultrasound and cervical vascular ultrasound in the diagnosis of coronary heart disease
Objective To observe the value of cardiac ultrasound combined with cervical vascular ultrasound in the diagnosis of coronary heart disease. Methods A total of 135 patients with suspected coronary heart disease were selected,and cardiac ultrasound and cervical vascular ultrasound were performed. Using clinical diagnostic results as the "gold standard",the diagnostic results of cardiac ultrasound and cervical vascular ultrasound alone and in combination for coronary heart disease were analyzed,as well as the consistency between the results of cardiac ultrasound combined with cervical vascular ultrasound and both alone for the diagnosis of coronary heart disease and the clinical diagnosis;the diagnostic efficacy of cardiac ultrasound and cervical vascular ultrasound alone and in combination for the diagnosis of coronary heart disease were compared. Results Among the 135 suspected coronary heart disease patients in this study,83 cases (61.48%) were positive and 52 cases (38.52%) were negative. There was a good consistency between the results of cardiac ultrasound combined with cervical vascular ultrasound and both alone for the diagnosis of coronary heart disease and the clinical diagnosis (Kappa=0.953,0.790,0.818). The sensitivity of cardiac ultrasound combined with cervical vascular ultrasound for the diagnosis of coronary artery disease was 98.80% (82/83),the accuracy was 97.78% (132/135),and the negative predictive value was 98.04% (50/51),which were higher than 84.34% (70/83),89.63% (121/135),and 79.69% (51/64) of cardiac ultrasound,and 87.95% (73/83),91.11% (123/135),and 83.33% (50/60) of cervical vascular ultrasound (P<0.05). Conclusion The combination of cardiac ultrasound and cervical vascular ultrasound has high diagnostic value for coronary heart disease and high consistency with clinical diagnostic results,therefore it is of great clinical application value.