Objective: To discuss the feasibility and value of Ultrasound contrast agent SonoVue in renal artery detection.
Methods: 35 patients with hypertension history were enrolled. First, observed the two-dimensional and color Doppler flow images of renal artery. Then ultrasound contrast agent SonoVue was used. At last, made comparison and analyze the results before and after the ultrasound contrast.
Results: The results of renal artery image were ranked from 0—3 scale. Before the ultrasound contrast, 8 patients’ external renal artery image were scale 2; 20 patients were scale 1;7 patients were scale 0. After the ultrasound contrast, 16 patients’ external renal artery image were scale 3; 19 patients were scale 2; 32 patients showed normal in renal artery.3 patients had renal artery stenos in the initial segment of the right renal. There were only 16 cases of image in the initial segment renal artery before contrast. After contrast, there were 70 cases of image in the initial segment . After the intravenous administration of SonoVue, all the patients’ renal artery color Doppler flow images signal are observed enhanced, and the images are continuously enhancing.
Conclusion: Ultrasound contrast agent SonoVue can significantly improve the color Doppler flow image and raise the renal artery image grade. Contrast media can show the change of renal artery vascular pipe and vascular wall, it can also measure the degree of lumen stenosis directly. SonoVue can take as the primary diagnosis of renal artery stenosis. It can identify some color Doppler false positive and false negative cases.