Exam (elaborations)
RADT 1075 exam #1
- Course
- Studytests
- Institution
- Studytests
Exam of 8 pages for the course studytests at studytests (RADT 1075 exam #1)
[Show more]
Content preview
RADT 1075 exam #1An increased part thickness results in: - ANS-increased beam attenuation ( beam
absorption)
A body tissue with an increased tissue density results in: - ANS-increased beam
attenuation
Unwanted exposure to the IR due to scatter radiation is called: - ANS-fog
Brightness/density is a quality related to the _____________ of the radiographic image.
- ANS-Visibility of structures
Contrast is a quality related to the ______ of the radiographic image - ANS-Visibility of
structures
The amount of luminance of a display monitor is: - ANS-brightness
The overall blackness on the processed film image is: - ANS-density
Difference in the brightness levels or densities is: - ANS-image contrast
The number of shades of gray that can be displayed by a computer system is: -
ANS-Grayscale
A radiographic image with a large number of similar densities that have small
differences between them: - ANS-All the above: appears gray, has long scale contrast,
has low contrast
The quality of a radiographic image depends on:
A. Brightness - visibility of analog mic structures
B. Accuracy of the recorded an atomic structural lines
C. Contrast - visibility of an atomic structures - ANS-A,B and C
The smallest object that can be detected in an image is the: - ANS-spatial resolution (
recoded detail )
, The accuracy of the anatomical structural lines recorded in the radiographic image is
determined: - ANS-Spatial resolution
Radiographic misrepresentation of the size or shape of the anatomic structure being
imaged is:
A. Magnification
B. Elongation
C. Foreshortening
D. All of the above - ANS-All of the above
Shape distortion includes:
A. Magnification
B. Elongation
C. Size distortion
D. All of the above - ANS-Elongation
As seen on the radiographic image, scatter radiation: - ANS-decreases the visibility of
anatomic structures
With radiographic imaging, anatomic tissues, such as bone, that absorb most of the
radiation result in that area of the image being: - ANS-lighter (less density)
The three primary geometric factors affecting image quality are
____________________ - ANS-magnification, distortion, and focal spot blur
What is the formula for magnification factor? - ANS-MF = SID/SOD
Focal spot blur can be reduced by using ________________ - ANS-small focal spot
Radiographic image quality is improved when the _______________ is increased. -
ANS-source image distance
The technologist primarily controls radiographic contrast by varying the __________ -
ANS-kilovoltage
Changes in kVp affect:
A. Optical density
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 EXAMQA. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$11.18. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77333 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now