title: Traces: making sense of urodynamics testing--part 3: electromyography of the pelvic floor muscles.
abstract: Electromyography (EMG) of the pelvic floor muscles is a valuable but challenging component of urodynamics testing. Optimal assessment relies on thoughtful selection of needle, wire, or surface patch electrodes; consistent display of EMG tracings simultaneously with pressure and flow tracings; and minimization of technical and environmental artifacts. This article reviews technical aspects of EMG, including the selection of the best electrodes for a given clinical scenario, minimization of environmental and technical artifacts, and clinical measurement during the filling cystometrogram and voiding pressure flow study.
authors.affiliation: Department of Urology, University of Virginia, Charlottesville, VA, USA.
authors.forename: Mikel
authors.initials: M
authors.lastname: Gray
mesh_terms: D016477:Artifacts; D004566:Electrodes; D004576:Electromyography / Q000295:instrumentation / Q000379:methods*; D004867:Equipment Design; D006801:Humans; D009339:Needles; D017773:Pelvic Floor / Q000502:physiology*; D014555:Urination Disorders / Q000503:physiopathology*; D014563:Urodynamics