Clinical study on two-dimensional color doppler ultrasonagraphy in diagnosing ureteral calculi

Objective To study the effects of the two - dimensional color Doppler ultrasonography in diagnosing ureteral calculi.Methods By studying the ureteral calculi cases in the past ten years in their hospitals,the authors made a contrast analysis between the data diagnosed by two - dimensional color Doppler ultrasonography and those which were clinical confirmed after thorough examinations.Applying Apdogee - CX color Doppler ultrasonographic instrument made in U.S.A and the HD 5000 color Doppler ultrasonographic instrument from PHILIPS Company,the authors analyzed the sound - penetrating images of the urinary bladder and back muscles,checked the expansion of the renal pelvis and ureters,and detected the ureteral obstructions and nature of the lesions.Results Among the 854 patients with ureteral disease,628 cases were diagnosed as ureteral calculi,of which 621 cases were diagnosed by ultrasonography,7 cases were missed or misdiagnosed as other diseases,the diagnostic accuracy was up to 98.88%.Conclusion Two - dimensional Doppler ultrasonography performs a very high accuracy in diagnosing ureteral calculi,it is the first choice in clinical diagnosis of ureteral calculi.