Bladder ARFI (Acoustic Radiation Force Impulse) Study

Evaluation of Pediatric Urinary Bladder Wall Thickening and Fibrosis Using Acoustic Radiation Force Impulse (ARFI)-Derived Shear Wave Velocities

Urinary bladder fibrosis (thickening and scarring) is fairly uncommon in children. Traditionally, the presence of urinary bladder fibrosis has been confirmed directly with bladder biopsy or using urodynamic testing. In this study we will use ultrasound scanning and ARFI (acoustic radiation force impulse) wave velocities to potentially identify any urinary bladder wall fibrosis.

Urinary bladder fibrosis (thickening and scarring) is fairly uncommon in children. Traditionally, the presence of urinary bladder fibrosis has been confirmed directly with bladder biopsy or using urodynamic testing.

We will use ultrasound ARFI (acoustic radiation force impulse)-derived shear wave velocities to potentially identify the presence of urinary bladder wall fibrosis. We hypothesize that shear wave velocities found within the bladder wall will increase with increasing evidence of fibrosis.

Inclusion Criteria:

1. 18 years of age or younger
2. Have an order for urodynamic testing from your doctor

Exclusion Criteria:

1. Adults
2. Unwilling to sign consent form