X-rays
	CAT Scan
	MRI
	Myelogram
	Bone Scan
	DEXA Scan
	EMG

What is it?
X-ray imaging is a process that utilizes photographic film to absorb electromagnetic radiation — having an extremely short wavelength and the ability to penetrate solids of various thicknesses — transmitted through a material body. When X-rays penetrate the human body, for example, they are absorbed in varying amounts by different tissue. Bone is dense and blocks much of the radiation, making it appear white or light gray on the X-ray image, whereas soft tissue, such as muscles and ligaments, appears dark because it lets the radiation pass through it.

Why is it done?
Even though X-rays are the oldest form of medical imaging, they remain a doctor's primary tool for detecting, diagnosing, and monitoring musculoskeletal conditions. X-ray images show a great deal of detail and can even capture the smallest of fractures, making them an invaluable diagnostic tool.

What does it involve?
The equipment used to produce X-ray images typically includes a large table with an underlying drawer that holds the film. An X-ray tube is positioned over the table using an apparatus that allows the operator to move and direct the tube over the patient's entire body. A patient is positioned on the table, and a film cassette placed under the table in the area of the patient's body to be imaged. After directing the patient to remain still, the operator steps behind a shielded barrier and activates the tube, transmitting X-rays through the patient's body to expose the film. If additional views are ordered, the tube and/or patient is repositioned and the process repeated.

How should I prepare for it?
X-ray imaging is fast and easy to administer, not to mention painless for the patient. For the most part, there is no preparation required for most X-rays. You may be asked to put on a hospital gown and to remove any objects that may interfere with the imaging process, such as jewelry and eyeglasses. It is important to note that radiation exposure can pose a serious threat to a developing fetus. Before receiving a bone scan, inform your doctor if you are pregnant (or even suspect that you are).

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