Botox in Women with Overactive Bladder

The purpose of this study is to learn how Botox works on patients with overactive bladder. Researchers aim to understand how Botox acts on an overactive bladder by adding magnetic resonance imaging (MRI) technology to routine urodynamics (a test commonly performed in the urologists' office for patients with overactive bladder). In so doing, researchers may better see and document Botox's action on the bladder. The study focuses on patients with overactive bladder who have chosen Botox as a treatment option and who have planned to undergo urodynamics as part of their evaluation.