Value and Result Analysis of Color Doppler Ultrasound Diagnosis for Renal Artery Stenosis in Patients with Coronary Heart Disease
Objective:To explore the diagnostic value of color Doppler ultrasound for renal artery stenosis in patients with coronary heart disease.Methods:From January 2021 to August 2023,109 patients with coronary heart disease who admitted to the hospital were selected,they were underwent computed tomography(CT),color Doppler ultrasound,and renal artery angiography.Using the results of renal artery angiography as the diagnostic gold standard for renal artery stenosis,the diagnostic results of CT and color Doppler ultrasound were compared.The ultrasound parameters of patients with renal artery stenosis and those without renal artery stenosis were compared,and the correlation between ultrasound parameters and the degree of renal artery stenosis was analyzed.Results:In terms of diagnostic sensitivity,specificity,accuracy,positive predictive value,and negative predictive value of renal artery stenosis,all indicators of color Doppler ultrasound examination were higher than those of CT examination(P<0.05).Compared to the group without renal artery stenosis,the group with renal artery stenosis had higher renal artery peak flow velocity,interlobar artery acceleration time,interlobar artery peak flow velocity ratio,and abdominal aortic peak flow velocity ratio(P<0.05).The peak renal artery flow velocity,interlobar artery acceleration time,interlobar artery peak flow velocity ratio,and abdominal aortic peak flow velocity ratio were positively correlated with the degree of renal artery stenosis in patients with coronary heart disease.Conclusion:Color Doppler ultrasound has good diagnostic value for renal artery stenosis in patients with coronary heart disease,and ultrasound parameters can be used to assist in evaluating the degree of renal artery stenosis.