George Hugh Cameron Stobie, 74, a retired Georgetown University Hospital surgeon whose work included research on computer applications in medicine, died of cancer July 23 at Suburban Hospital.

Dr. Stobie, who lived in the Washington area for the past 32 years, was on the medical staff of Georgetown University Hospital from 1967 to 1980. He then worked as a consultant, counting the National Institutes of Health among his clients.

Born in Belleville, Ontario, he graduated from St. Andrew's College in Aurora, Ontario, and served as a pilot in the Royal Canadian Air Force. After World War II, he received a medical degree from McGill University in Montreal and did postgraduate training in the University of Toronto's surgical program.

He attained fellowship in the Royal College of Physicians and Surgeons of Canada and practiced medicine in Belleville, Ontario, for three years.

He came to this country in the late 1960s, working as a research fellow in surgical research at the Mayo Clinic in Rochester, Minn. He later served as head of surgical research at the Hospital for Sick Children in Toronto and helped establish a medical computing system for Henry Ford Hospital in Detroit.

Survivors include his wife, Beth Allan Francis Stobie of Rockville; three children, George David Gordon Stobie of Silver Spring, Judith Elizabeth Bauer of Frederick and Catharine Eleanor Heald of Rockville; a sister; and four grandchildren.