Primary Study of Ultrasonic Diagnosis of Ureteral Calcili Concurred with<10 mm Hydronephrosis

Objective: To study the incidence,causes and diagnostic points of ureteral calculi complicated by 10 mm hydronephrosis.Methods: By measuring the width of renal pelvis,compared with 98 normal persons,93 cases with ureterolithiasis concurred with10 mm hydronephrosis,among them,there were 2 cases whose hydronephrosis involved both kidneys at the same time,have been observed and analyzed statistically.Results: Among 93 cases with ureterolithiasis(95 kidneys involved),there are 28 cases(29.5%) concurred with 10 mm hydronephrosis,the average width of renal pelvis is(7.9±1.37)mm,and compared with normal kidney,the width of ill kidney of renal pelvis extends by 3.1 mm,and by t test,there is significant difference between them(P0.01).Conclusion: While detecting the patients with ureterolithiasis,if the width of renal pelvis is 10 mm,it is necessary to measure the width of another kidney and compare with them.If the width of ill renal pelvis is extended by 3.1 mm,the diagnosis of hydronephrosis can be established,then,combining with other signs,such as ureterectasis,the diagnosis of ureterolithiasis can be set up.