« previous next »

Author Question: The cause of a mottled or noisy appearing CR image would be: off centering high SNR low SNR too ... (Read 30 times)

ishan

  • Hero Member
  • *****
  • Posts: 546
on: Jul 17, 2018
The cause of a mottled or noisy appearing CR image would be:
 
 off centering
  high SNR
  low SNR
  too much collimation

Question 2

When imaging a portable AP chest, what can the technologist do to reduce the amount of heart magnification?
 
 shorten the exposure time
  increase the SID
  increase the SOD
  sit the patient semi-erect


cswans24

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 17, 2018
Answer to Question 1

low SNR

Rationale: A low SNR may result in insufficient mAs administered, therefore, not enough photons generated.

Answer to Question 2

increase the SID

Rationale: Increasing the SID will compensate for OID between the part and the image receptor. Portable chest imaging must sustain a minimum of 40 inches, but if more distance could be achieved, then it should be applied.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Image of a blue whale's tail fluke with the Santa Barbara Channel Islands in the background, Au Image of a blue whale's tail fluke with the Santa Barbara Channel Islands in the background, Au
A breech birth. This image illustrates a newborn that has been delivered buttocks first. A breech birth. This image illustrates a newborn that has been delivered buttocks first.
Obstetrical sonography and fetometry. (b) An ultrasound image reveals the fetus within the uterus. Obstetrical sonography and fetometry. (b) An ultrasound image reveals the fetus within the uterus.
Midsagittal image of the head on an MRI scan Midsagittal image of the head on an MRI scan
The developing and emerging nations have high rates of population growth The developing and emerging nations have high rates of population growth
Eating Disorders and Body Image (1 of 2) Eating Disorders and Body Image (1 of 2)
Video: Neurosynapse Animation

For a complete list of videos, visit our video library