X-ray Diagnostic

Date: 2015-10-07; view: 428.

The advantages of X-ray examination or a radiograph allows to examine all body organs and systems. X-rays can be used to view any part of the body, such as a joint or major organ system. In a radiograph a technician passes a concentrated burst of low-dose ionized radiation through the body and onto a photographic plate. Since calcium in bones absorbs x-rays more easily than soft tissue or muscle, the bony structure appears white on the film. Any vertebral misalignment or fractures can be seen within minutes. Tissue masses such as injured ligaments or a bulging disc are not visible on conventional x-rays. This procedure is fast, noninvasive and painless.

Fluoroscopy is a type of x-ray that uses a continuous or pulsed beam of low-dose radiation to produce continuous images of a body part in motion. The fluoroscope (x-ray tube) is focused on the area of interest and pictures are either videotaped or sent to a monitor for viewing. A contrast medium may be used to highlight the images. Fluoroscopy can be used to evaluate the flow of blood through arteries.

3. Read the text about CT scans diagnostic and find the answers from the text:

1. What is a CT scan?

2. What can a CT scan detect?

3. How long does the procedure take?

4. In what cases EEG can be used by doctors?

5. How long does EEG take?

6. When do doctors use EMG?

7. How is the procedure of EMG performed?

8. What does ENG describe?