RT Journal Article SR Electronic T1 Shades of Gray: A History of the Development of Diagnostic Ultrasound in a Large Multispecialty Clinic JF Ochsner Journal JO Ochsner J FD O. P. Jindal Global University SP 151 OP 155 VO 11 IS 2 A1 Troxclair, Laurie A1 Smetherman, Dana A1 Bluth, Edward I. YR 2011 UL http://www.ochsnerjournal.org/content/11/2/151.abstract AB The Department of Radiology at the Ochsner Health System has been a central player in the development of ultrasound nationally and internationally for much of the history of this technology. In the following article, we review the progress of ultrasound in our institution.