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by DougMerritt 1254 days ago
Right, but it's a weird terminology subject, because CT is just short for "Computerized Tomography", with the initial implied "X-ray" part being a convention -- but all of these 3D scan techniques are variant kinds of Tomography, with X-ray CT/CAT scans being the original kind.

Your comments about C-11 are well-taken and an important caveat.