Donald Wood has been named VP of operations for Abaxis (Union City, California). Wood most recently served as VP of operations at Cholestech. Abaxis makes portable blood analysis systems.

• InSight Health Services Holdings (Lake Forest, California) said that Bret Jorgensen is leaving InSight as president/CEO, effective Nov. 15, to pursue other interests. He will remain as a consultant to the company for a six-month period during the transition. InSight makes diagnostic imaging services.

Michael Ryan has been named senior VP of the medical division of Misonix (Farmingdale, New York). Most recently Ryan served as senior VP and general manager of Nomos radiation oncology. Misonix makes ultrasonic medical device technology.

Bob Calissendorff has been named CFO of Radlink (Redondo Beach, California). Formerly, Calissendorff was VP at Pacific Capital. Radlink makes medical imaging systems.