ObjectiveTo investigate the clinical value of transvaginal color Doppler ultrasonography(TVCDUS)in the diagnosis of elderly female bladder neck obstruction.MethodsTwenty female patients with bladder neck obstruction were examined by TVCDUS,the morphous and echo of their upper urethra,front lip, posterior lip of bladder neck were detected,and the anatomical relationship of lesions and urethra were observed by color Doppler flow imaging(CDFI).The transverse diameter,anteroposterior diameter,posterior lip thickness and residual urine volume were measured respectively when the transverse and longitudinal section scanning was being carried out.ResultsContinuous and clear images of bladder neck could be seen according to TVCDUS,and their bladder necks′ transverse diameters were larger than 20 mm,anteroposterior diameters were larger than 15 mm,posterior lip thickness were larger than 6 mm,their vesical residual urine volume were larger than50 mL.The color flow signal of urinary passed the leisons during micturition period.ConclusionThe TVCDUS can clearly display the structure of urethra and bladder neck,and rule out the possibilities of the neoplastic lesion by observing the color signal of color flow signal during micturition period.So,it provids a convenient diagnostic method for elderly female bladder neck obstruction.

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