Ultrasound: a noninvasive screening test for detrusor instability.
OBJECTIVE
To determine whether transvaginal ultrasound measurement of bladder wall thickness can be used as a screening test for detrusor instability in women with urinary symptoms.


METHODS
A blinded prospective study.


METHODS
A London teaching hospital.


METHODS
One hundred and eight-four symptomatic women presenting to a urodynamic clinic.


METHODS
The detection of detrusor instability by means of videocystourethrography (VCU) and ambulatory urodynamics in women with a mean bladder wall thickness of greater than 5 mm measured by transvaginal ultrasound.


RESULTS
One hundred and eight women had a mean bladder wall thickness of greater than 5 mm. Ninety-four percent (102) of these women had detrusor instability either when undergoing VCU or ambulatory urodynamics. Seventeen women had a bladder wall thickness of less than 3.5 mm of whom three were found to have detrusor instability on VCU.


CONCLUSIONS
The measurement of a mean bladder wall thickness greater than 5 mm with transvaginal ultrasound is a sensitive screening method for diagnosing detrusor instability in symptomatic women without outflow obstruction.
Khullar
V
V
Department of Obstetrics and Gynaecology, King's College Hospital, London, UK.
Cardozo
L D
LD
Salvatore
S
S
Hill
S
S
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008875:Middle Aged; D011237:Predictive Value of Tests; D011312:Pressure; D011446:Prospective Studies; D012680:Sensitivity and Specificity; D016037:Single-Blind Method; D014463:Ultrasonography; D001745:Urinary Bladder Diseases / Q000000981:diagnostic imaging* / Q000473:pathology / Q000503:physiopathology; D014555:Urination Disorders / Q000000981:diagnostic imaging* / Q000473:pathology / Q000503:physiopathology; D014563:Urodynamics