RADT 465 image acq Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
| Question | Answer |
| 1. misalignment of the tube-part-IR relationship results in | shape distortion (Lange Q&A p. 179) |
| 2. in digital imaging, brightness is controlled by | IR exposure, monitor functions, and postprocessing functions (Lange Q&A p. 179) |
| 3. An algorithm, as used in x-ray imaging is a | series of variable instructions (Lange Q&A p. 179) |
| 4. the intensity of ionizing radiation decreases as | distance from the source of radiation increases (Lange Q&A p. 180) |
| 5. the reduction in x-ray photon intensity as the photon passes through material is termed | attenuation (Lange Q&A p. 180) |
| 6. if a lateral projection of the chest is being performed on an asthenic patient and the outer photo-cells are selected, what is likely to be the outcome | Decreased IR exposure (Lange Q&A p. 181) |
| 7. the component of the CR image plate that records the radiologic image is the | photostimulable phosphor (Lange Q&A p. 181) |
| 8. the radiation dose received by the digital detector for each image is indicated by the | Exposure indicator (Lange Q&A p. 181) |
| 9. the luminescent light emitted by the PSP is transformed into the image seen on the CRT by the | ADC (Lange Q&A p. 181) |
| 10 the term windowing describes the practice of | changing the image brightness and/or contrast scale (Lange Q&A p. 182) |
| 11. the radiographic object being placed at an angle to the IR can cause | foreshortening (Lange Q&A p. 182) |
| 12. three methods to minimize motion unsharpness | suspend respiration, use short exposure time, and adequately instruct patient (Lange Q&A p. 182) |
| 13. unopened boxes of radiographic film should be stored away from radiation and placed in what position | vertical (Lange Q&A p. 183) |
| 14. term to describe unsharp edges of tiny radiographic details | blur (Lange Q&A p. 186) |
| 15. A 5-in object to be radiographed at 44-in SID lies 6 in from the IR. What will be the image width? | 6.1 in (Lange Q&A p. 186) |
| 16. Tiny increased brightness, dropout artifacts, is a representation of | dust/dirt on the PSP (Lange Q&A p. 187) |
| 17. Using a short SID with a large IR is likely to | increase the anode heel effect (Lange Q&A p. 187) |
| 18. chemical fog on a radiographic film image mage be attributed to | excessive developer temperature, oxidizer developer, and excessive replenishment (Lange Q&A p. 187) |
| 19. because of the anode heel effect, the intensity of the x-ray beam is greatest along the | cathode end of the beam (Lange Q&A p. 187) |
| 20. using a 48-in SID, how much OID must be introduced to magnify an object two times | 24-in OID (Lange Q&A p. 188) |
| 21. analog-to-digital conversion is required in the following imaging system | CR (Lange Q&A p. 188) |
| 22. for the same FOV, spatial resolution will be improved using | a larger matrix (Lange Q&A p. 188) |
| 23. the absorption of useful radiation by a grid is called | grid cutoff (Lange Q&A p. 189) |
| 24. where is focal-spot blur the greatest | toward the cathode end of the x-ray beam (Lange Q&A p. 191) |
| 25. how are mAs and patient dose related | mAs and patient dose are directly proportional (Lange Q&A p. 191) |
| 26. Materials that could be used as grid interspace material | plastic, aluminum (Lange Q&A p. 192) |
| 27. Correct order of radiographic film processing | developer, fixer, wash, dry (Lange Q&A p. 192) |
| 28. what is the purpose of the thin layer of lead that is often located in the rear portion of the IP | To prevent scattered radiation fog (Lange Q&A p. 196) |
| 29. the purpose of the electroconductive layer of a CR PSP plate is to | facilitate transportation through the scanner/reader (Lange Q&A p. 196) |
| 30. the x-ray image seen on the computer display monitor is a(an) ___ image | analog (Lange Q&A p. 197) |
Created by:
hayley_kidwell92
Popular Radiology sets