Dr. Sean Casey is chief executive officer and chairman of the Virtual Radiologic Board of Directors. He is also one of the co-founders of Virtual Radiologic. An American Board of Radiology-certified radiologist, Dr. Casey is a pioneer in the clinical use of cerebral CT angiography and venography, as well as other 3D post-processing applications. He has received numerous awards from the Radiological Society of North America, the American Society of Neuroradiology and the American Roentgen Ray Society. Prior to co-founding Virtual Radiologic, Dr. Casey was an associate professor, director of Head and Neck Radiology, and director of the neuroradiology fellowship training program at the University of Minnesota.

Since 1998, Dr. Casey has served on the medical advisory board of Vital Images Inc., a provider of 3D visualization applications. He has presented more than 76 abstracts or lectures at radiology conferences and authored or co-authored 31 peer-reviewed articles. He authored the chapter "MR Angiography: Special Reference to the Central Nervous System" in the recent edition of Radiology by Taveras and Ferucci.

An undergraduate of the Johns Hopkins University, Dr. Casey received his doctorate of medicine degree from the Albert Einstein College of Medicine in New York. He served his radiology residency at Long Island Jewish Medical Center and completed a neuroradiology fellowship at the University of Colorado Health Sciences Center. Dr. Casey holds a CAQ in neuroradiology from the American Board of Radiology and is currently licensed in all 50 states and the District of Columbia.

Andrew Hertzmark has been a director since April 2006 and is an appointee of the holders of the company's Series A Preferred Stock. Since 2007, Mr. Hertzmark has been a partner of Generation Partners, a private investment firm that acquires and provides growth capital to companies primarily in the healthcare, business and information services, and media and entertainment sectors. From 2004 to 2007, Mr. Hertzmark was a vice president at Generation Partners. Prior to joining Generation Partners, Mr. Hertzmark was an associate at Galen Associates, a private investment firm focused on the healthcare industry. Mr. Hertzmark was also an analyst in the Investment Banking Division of UBS AG. Mr. Hertzmark currently serves on the board of directors of Post Education, Inc. and is a trustee of Post University. Mr. Hertzmark earned a bachelor of arts from the University of Pennsylvania and received his M.B.A. from The Wharton School of Business.

Richard Nigon has been a director since May 2007. Mr. Nigon is currently the president of Cedar Point Capital, Inc., a private company that raises capital for early stage companies. From February 2001 until May 2007, Mr. Nigon was a director of equity corporate finance for Miller Johnson Streichen Kinnard, a privately held investment firm. After Miller Johnson Streichen Kinnard was acquired by Stifel Nicolaus in December 2006, Mr. Nigon served as a managing director of private placements at Stifel Nicolaus. From February 2000 to February 2001, Mr. Nigon served as the chief financial officer of Dantis, Inc., a web hosting company. Prior to joining Dantis, Mr. Nigon was employed by Ernst & Young, LLP from 1970 to 2000, where he served as a partner from 1981 to 2000. While at Ernst & Young, Mr. Nigon served as the director of Ernst & Young's Twin Cities entrepreneurial services group and was the coordinating partner on several publicly traded companies in the consumer retailing and manufacturing industries. Mr. Nigon also serves as a director of Restore Medical, Inc. and Vascular Solutions, Inc.

Mr. Nigon is chairman of the Audit Committee. He is also a member of the Compensation Committee.

David Schlotterbeck has been a director since June 2008. Mr. Schlotterbeck is an experienced public company executive and has spent more than 20 years in the healthcare industry. He is currently vice chairman of Cardinal Health, a publicly traded, $90 billion provider of pharmaceutical, clinical and medical products, and chief executive officer of Cardinal Health's Clinical and Medical Products Sector, one of the largest and fastest growing medical device businesses in the world.

Previously, Mr. Schlotterbeck served as president and chief executive officer of Alaris Medical Systems until it was acquired by Cardinal Health. Mr. Schlotterbeck has also held senior management positions at publicly traded medical device and healthcare information technology companies, and has public company board experience.

Mr. Schlotterbeck holds an engineering degree from General Motors Institute, and a post-graduate degree in engineering from Purdue University.

Mr. Schlotterbeck is a member of the Nominating and Corporate Governance Committee.

Kevin Roche has been a director since November 2008. Roche's extensive background in the healthcare industry includes more than 25 years in legal, strategic advisory and executive operating roles. Roche is currently a managing partner at Vita Advisors, a mergers and acquisition advisory firm focused solely on the healthcare industry.

Previously, Roche spent 14 years with UnitedHealth Group, serving as General Counsel before becoming the CEO of the Ingenix division. Under his leadership, Ingenix's revenue grew from less than $50 million to over $400 million. Prior to UnitedHealth, he held senior executive and legal positions with Partners National Health Plans and American Medcenters Inc.

Roche earned his law degree from the University of Minnesota Law School and holds a master's degree in business administration from the University of Minnesota's Carlson School of Business.

Mr. Roche is a member of both the Compensation Committee and the Nominating and Corporate Governance Committee.