A second hospital in Los Angeles County says patients received overdoses of radiation from CT scans.

Glendale Adventist Medical Center says 10 patients who were scanned for possible strokes earlier this year received three to four times the normal radiation dose. One suffered hair loss. All have been notified of the error.

Hospital officials said Friday that the overdoses occurred after a machine was reprogrammed for a new scanning protocol that was supposed to help doctors find strokes.

Earlier this year, Cedars-Sinai Medical Center found that 260 people had received eight times the correct radiation dose.

County inspectors began examining scanners and found the problem at Adventist on Tuesday. Department of Public Health spokeswoman Sarah Kissell says no other cases have been found.