Imaging procedures in Alberta affected by contrast dye shortage

Alberta Health Services says patients are being told to wait for their imaging procedures because of a global shortage of a compound required to complete them. Officials say CT scan imaging and angiographic procedures require the use of contrast dye material, which enhance the visibility of blood vessels as well as different structures and body tissues in images. Since the province's supplies are dwindling, AHS says it is postponing as many as 1,500 procedures per week. Alberta is not alone in t