AB214. Application of ultrasonic measurement of epididymal width in differential diagnosis of azoospermia

Abstract

ObjectiveTo investigate the of epididymal width in identifying non obstructive azoospermia (NOA) and obstructive azoospermia (OA).MethodsUsing scrotal ultrasound to compare difference of epididymal width between OA (n=18) and NOA (n=10) patients.ResultsIn the patients with OA average bilateral epididymal width is 0.7+0.1 cm, which is higher than the NOA patients (P<0.05) by ultrasonic measurement. The average width of bilateral epididymis increased with the increase of Johnsen score (P<0.05). In ROC analysis, when 0.78, 0.33, 0.53 cm are used as the cut point for bilateral caput epididymis, corpus epididymis, cauda epididymis, respectively, the sensitivity for differential diagnosis is higher.ConclusionsThere is obvious difference in epididymal width under ultrasound between NOA and OA, which is helpful for differential diagnosis of azoospermia.