Dean R. Kessler is Vice President of Preclinical Development. Mr. Kessler joined Sonus in 1992 as one of the company's first Research Scientists focused on the development of fluorocarbon emulsions for use as ultrasound contrast agents. He served most recently as Director of Pharmacology and Toxicology and was promoted to Vice President in December 2003. He is responsible for biological testing, experimental non-clinical pharmacology and non-clinical safety assessments for new products. He has more than 17 years experience in the preclinical evaluation of new pharmaceuticals. Mr. Kessler's previous experience includes five years at Salutar, Inc in the research and development of novel contrast agents for magnetic resonance imaging, ultimately resulting in the successful approval of two New Drug Applications (OmniScan® and TeslaScan®). Mr. Kessler received a B.S. in Pharmacology from the University of California at Santa Barbara and is a Diplomat of the American Board of Toxicology. Return to Management Team list