A myelogram is a diagnostic imaging procedure done by a radiologist. It uses a contrast dye and X-rays or computed tomography (CT) to look for problems in the spinal canal, including the spinal cord, nerve roots, and other tissues.he contrast dye appears on an X-ray screen, allowing the radiologist to see the spinal cord, subarachnoid space, and other nearby structures more clearly than with standard X-rays of the spine. The radiologist will also use a CT scan when doing a myelogram.
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Thatâs the main takeaway for shoppers from Mondayâs announcement that the giant warehouse club struck a new deal with Citigroup and Visa to replace its 16-year partnership with American Express. The new deal means that consumers will be able to use any Visa-branded credit card when they make purchases at Costco stores.Previously, they were only able to use AmEx credit cards. Visa already dwarfs AmEx in terms of the number of cards that are in shoppersâ hands.There are 281.4 million Visa cards in circulation compared with 54.9 AmEx cards, according to the Nilson Report, a card-industry newsletter.reviously, they were only able to use AmEx credit cards. Visa already dwarfs AmEx in terms of the number of cards that are in shoppersâ hands. There are 281.4 million Visa cards in circulation compared with 54.9 AmEx cards, according to the Nilson Report, a card-industry newsletter.