Diagnostic Imaging Terminology

4. high energy electromagnetic radiation capable of penetrating tissues and other substances; also commonly used to mean radiographs
5. the degree of perceptible difference between two color tones
6. an image produced by exposure of film or receptors to x-rays passing through the patient
9. a flat plate containing a series of narrow vertical lead strips alternating with radiolucent material, used to reduce the amount of scatter radiation reaching the x-ray film
10. the diffusion or deviation of x-rays produced by the medium through which the x-rays pass
11. the path that the x-rays follow as they leave the tube
13. a mechanism consisting of an anode and a cathode in a vacuum that produces a controlled x-ray beam
14. procedure used to continuously visualize structures over time using radiation to project images on a fluorescent screen
15. a device used to measure the thickness of anatomic parts

1. the degree of blackness of the radiograph
2. the distance between the x-ray tube and the film or image receptor
3. a chart based on tissue thickness and anatomic part that can be consulted for predetermined stetting of the x-ray machine
7. restriction of the x-ray beam size to the area of consideration
8. anything that decreases the quality of the radiograph resulting in difficult evaluation and interpretation
12. detail; the ability to separately identify different structures on radiograph or ultrasound