An X-ray record of the spinal cord is called a myelogram, states the Mayfield Clinic. Regular X-rays do not show the interior of the spinal canal, but the contrast dye used during a myelogram makes it possible to see the... More » Science Human Anatomy Nerves

A CT myelogram usually isn't painful, but patients may experience an uncomfortable pressure or shooting pain when the needle is inserted during the spinal puncture, according to RadiologyInfo. Some patients feel a stingi... More » Health Diagnostics & Imaging

X-ray machines work by generating an electrical current or voltage, which is then projected through an X-ray tube to produce a series of X-ray waves, which either pass through objects or are absorbed by the surrounding m... More »

To obtain an X-ray tech certification, students must complete certificate programs in radiologic technology and x-ray to prepare for state licensing exams and tests offered by the American Registry of Radiologic Technolo... More »

Find an X-ray technician program at and The websites offer search tools to find schools by state and ZIP code. also allows users to refine the search by specif... More »

Some programs require as little as half a year for a student to become an X-ray technician. However, starting in 2015, technicians must pursue an associate's degree, which typically takes 2 years, to be certified nationa... More »

Pregnant women should not normally be given X-rays because they can expose the unborn baby to direct X-ray beams, according to the U.S. Food and Drug Administration. X-rays of the mother's abdomen, pelvis, stomach, kidne... More »