Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
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

RADT 465 image acq

ARRT registry review covering image acquisiton and evaluation

QuestionAnswer
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