Assistant Professor
Department of Emergency Medicine
Program Director, Advanced Emergency Medicine Ultrasound Fellowship
Director of Student Programs and the Emergency Medicine Clerkship
Sites of Practice: 
Harborview Medical Center
University of Washington Medical Center

Faculty Information


Dr. Kessler is an emergency physician with a specialization in clinical ultrasound. He has a specific interest in the utilization of ultrasound in critical care and the prehospital setting. His research interests include the development of automated clinical ultrasound technology, the use of novel ultrasound devices in critically ill patients, and the integration of ultrasound in medical education. 

Education & Training: 
University of Chicago
Residency, Emergency Medicine
University of Pennsylvania
Fellowship in Emergency Ultrasound
Denver Health Medical Center
Phi Beta Kappa
Alpha Omega Alpha
Mailing Address: 

University of Washington Medical Center
Magnuson Health Sciences Building,
F Wing, UW Box 357235
1705 NE Pacific Street
Seattle, WA 98195

Research & Clinical Interests
Research Interests: 

Emergency Ultrasound

Prehospital and Critical Care Ultrasound

Ultrasound in Medical Education


See below for recent publications:

  1. Belmont B, Kessler R, Theyyunni N, Fung C, Huang R, Ward K, Shih A, Tiba M: Continuous inferior vena cava diameter tracking in spontaneously breathing patients through an iterative Kanade-Lucas-Tomasi feature tracking algorithm. Ultrasound Medicine Biol. 44(12): 2793-2801, 2018
  2. Betcher J, Majkrzak A, Cranford J, Kessler R, Theyyunni N, Huang R. Feasibility study of   advanced focused cardiac measurements within the emergency department. Crit Ultrasound J. 10(1): 10, 2018
  3. Stowell JR, Kessler R, Lewiss RE, Barjaktarevic I, Bhattarai B, Ayutyanont N, Kendall JL. Critical care ultrasound: A national survey across specialties. J Clin Ultrasound. 46(3): 167-177, 2018
  4. Fair J, Mallin M, Mallemat H, Zimmerman J, Arntfield R, Kessler R, Bailitz J, Blaivas M. Transesophageal Echocardiography: Guidelines for Point-of-Care Applications in Cardiac Arrest Resuscitation. Ann Emerg Med. 71(2): 201-207, 2017
  5. Royer DF, Kessler R, Stowell JR. Evaluation of an innovative hands-on anatomy-centered ultrasound curriculum to supplement graduate gross anatomy education. Anat Sci Educ. 10(4): 348-362, 2017
  6. Becker TK, Tafoya CA, Osei-Ampofo M, Tafoya MJ, Kessler R, Theyyunni N, Yakubu HA, Opuni D, Clauw DJ, Cranford JA, Oppong CK, Oteng RA. Cardiopulmonary ultrasound for critically ill adults improves diagnostic accuracy in a resource-limited setting: the AFRICA trial. Trop Med Int Health. 22(12): 1599-1608, 2017
  7. Kessler R, Stowell JR, Vogel JA, Liao MM, Kendall JL. Effect of Interventional Program on the Utilization of PACS in Point-of-Care Ultrasound. J Digit Imaging. 29(6): 701-705, 2016