Some doctors at CancerCare Manitoba, as well as lung cancer patients, are frustrated by delays in getting a cutting-edge radiation treatment in place, CBC News has learned.

The Manitoba government announced in 2008 that it wants stereotactic body radiation therapy (SBRT) in place for lung cancer patients.

However, four years later, the program has yet to launch.

"The lung program … is currently in the late stages of implementation, and we expect to start treatment of patients around December," Dr. Dhali Dhaliwal, CancerCare's president and chief executive officer, told CBC News.

The therapy can deliver high doses of radiation to a tumour in the lungs.

CancerCare says SBRT is needed in about a dozen lung cases a year. For now, patients in Manitoba are sent out of the province.

But some experts from other jurisdictions told CBC News having to wait four years is a long time for such technology to become available.

CancerCare says the delay in bringing SBRT to Manitoba is not related to the resignation of Dr. Ethan Lyn as its head of the radiation oncology department.

CBC News reported earlier this week that Lyn has stepped down from leadership roles at CancerCare following an investigation that found problems with his administrative work.