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Mayo Clinic Q&A: Picture this: CT scans take an inside look

I’m scheduled for a CT scan, and I’ve never had one before. What does a CT scan do, what will it be like and is it safe?
Medscape

Oral Contrast for Abdominal CT: How Important Is It and How Long Does It Take?

Although CT is a relatively recent technology, there have been great improvements in the equipment. The early, slow "Step and Scan" machines required long image acquisition times, resulting in a ...