Credentialing issues in emergency ultrasonography.

The use of ultrasonography, traditionally performed by radiologists, is becoming increasingly widespread in emergency medicine. Consequently, much debate has evolved over whether emergency medicine physicians are qualified to provide this service, and the criteria by which training and credentialing can be achieved. This article discusses training and credentialing guidelines, paths to becoming credentialed in emergency sonography, and quality assurance issues. Also, strategies are proposed for emergency departments seeking to perform emergency sonography.