Exam (elaborations)
Imaging Principles questions with 100% correct answers
- Course
- Institution
Imaging Principles questions with 100% correct answers
[Show more]
Content preview
Imaging PrinciplesPortrait (lengthwise) - correct answer ✔✔long axis of body part is aligned w/ longest dimension of the IR
Landscape (crosswise) - correct answer ✔✔broader lateral borders
exposure latitude - correct answer ✔✔The range of exposure over which a film produces an acceptable
image.
kilovoltage (kV) - correct answer ✔✔Controls the energy (penetrating power) of the x-ray beam.
Also referred to as Kilovoltage Peak (kVp): maximum electrical potential used to create the x-ray photons
within x-ray tube.
Milliamperage (mA) - correct answer ✔✔Controls the quantity or number of x-rays produced
Exposure time (ms) - correct answer ✔✔controls the duration of the exposure ; usually expressed in
milliseconds
4 quality factors of film-based images - correct answer ✔✔density ; contrast ; spatial resolution ;
distortion
Density - correct answer ✔✔image quality factor (film-based)
amount of "blackness" on the processed radiograph. (high density, less light)
Density controlling factors - correct answer ✔✔primary controlling factor.mAs: quantity of x-rays
produced & duration of exposure
, kV: controls energy of x-ray beam
influencing factors of density - correct answer ✔✔Source image receptor distance (SID): distance of x-ray
source from IR .
If sid is doubled at IR, the intensity of x-ray beam is reduced to one-fourth, which then reduces the
radiographic density to 1/4
anode heel effect - correct answer ✔✔intensity of radiation emitted from the cathode end of the x-ray
tube is greater than that emitted at the anode end
(more intense under cathode [greater kV])
application of anode heel effect - correct answer ✔✔thicker parts at cathode
Compensating filters - correct answer ✔✔filter out a portion of the primary beam toward the thin or less
dense part of the body that is being imaged
types of compensating filters - correct answer ✔✔- wedge filter
- trough filter
-boomerang filter
wedge filter - correct answer ✔✔a type of compensating filter used to even out densities (placed
towards the least dense part)
mounts on the collimator
ex: AP foot, AP thoracic spine, axiolateral hip
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller BravelRadon. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67866 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now
