Image Quality Flashcards
1
Q
Image Quality
A
Visible sharpness of the image
2
Q
Image quality involves:
A
- Definition
- Resolution
- Detail
- Sharpness
- Visibility of Detail
- Edge Gradient
- Umbra
3
Q
Opposite of detail is:
A
- Penumbra
- Blur
4
Q
Resolution
A
Ability to image two separate objects and visually distinguish one from the other
5
Q
What are the two different types of Resolution?
A
- Spatial Resolution
- Contrast Resolution
6
Q
Spatial Resolution
A
ability to distinguish between two separate objects of high subject contrast such as bone and soft tissue
7
Q
Contrast Resolution
A
Ability to distinguish anatomical structures of similar subject contrast (low contrast)
8
Q
Increased contrast resolution:
A
- more shades of gray
- ability to differentiate two objects
9
Q
Decreased contrast resolution
A
- less shades of gray
