Radiographic Physics- Viewing digital image (VDI) ||
Already Passed.
A digital display device with higher megapixels has better spatial resolution
A. True
B. False correct answers True
An advantage to viewing the AMLCD screen is that the image quality is equally good viewed
from any anlge
A. True
B. False correct answers False
A liquid crystal is a material in a___ state
A. Liquid
B. State between a liquid and a gaseous state
C. Solid
D. State between a liquid and a solid state correct answers D. State between liquid and a solid
state
A___ test tool is used to acquire data for an MTF curve.
A.Post processing
B. Bar Pattern
C. Signal to noise ratio
D. Contrast- detail curve correct answers B. Bar Pattern
The decreasing luminous intensity with increasing distance from the source of light follows____
A. Cosine Law
B. The law of Gravity
C. Murphy's Law
D. the inverse square law correct answers D. The inverse square law
A digital display monitor is best viewed ____
A. At a 30 degree angle
B. From Below
C. From Above
D. Straight on correct answers D. straight on
If an image receptor has a high probability of interacting with the x-ray beam then it has a
high____
A, DQE
B. SNR
C. MTF
D. LP/mm correct answers A. DQE
The ____ digital imaging system uses the highest dynamic range
, A. Computed tomography
B. Mammography
C. Magnetic Resonance
D. Angiography correct answers B. Mammpgraphy
PACS stands for _____
A. Processing, Archiving, and computer storage
B. Processing, Application, and computer storage
C. Picture, Archiving and communication System
D. Physician Applications and communication systems correct answers C. Picture Archiving and
communication system
with digital imaging, patient dose can be reduced by using higher____
1. Techniques
2. Optical density
3. mAs
4. Contrast
5. kVp correct answers 5 . kVp
why dose digital radiography have a higher modulation transfer function at low spatial
frequencies than does screen- film imaging?
1. Lower patient dose
2. Fewer repeats
3. Less kVp dependence
4. Better contrast resolution
5. Higher detective quantum efficiency (DQE) correct answers 5. Higher detective quantum
efficiency (DQE)
which is not a part of PACS?
1. a network
2. film storage
3. a display system
4. image acquisition correct answers 2. film storage
the national standard for image transmission in teleradiology is the ____ format
1. MB
2. RIS
3. PACS
4. DICOM correct answers 4. DICOM
which of the following reduces contrast resolution
1. kVp
2. Noise
3. mAs
4. MTF
5. Detective quantum efficiency correct answers 2. Noise
Already Passed.
A digital display device with higher megapixels has better spatial resolution
A. True
B. False correct answers True
An advantage to viewing the AMLCD screen is that the image quality is equally good viewed
from any anlge
A. True
B. False correct answers False
A liquid crystal is a material in a___ state
A. Liquid
B. State between a liquid and a gaseous state
C. Solid
D. State between a liquid and a solid state correct answers D. State between liquid and a solid
state
A___ test tool is used to acquire data for an MTF curve.
A.Post processing
B. Bar Pattern
C. Signal to noise ratio
D. Contrast- detail curve correct answers B. Bar Pattern
The decreasing luminous intensity with increasing distance from the source of light follows____
A. Cosine Law
B. The law of Gravity
C. Murphy's Law
D. the inverse square law correct answers D. The inverse square law
A digital display monitor is best viewed ____
A. At a 30 degree angle
B. From Below
C. From Above
D. Straight on correct answers D. straight on
If an image receptor has a high probability of interacting with the x-ray beam then it has a
high____
A, DQE
B. SNR
C. MTF
D. LP/mm correct answers A. DQE
The ____ digital imaging system uses the highest dynamic range
, A. Computed tomography
B. Mammography
C. Magnetic Resonance
D. Angiography correct answers B. Mammpgraphy
PACS stands for _____
A. Processing, Archiving, and computer storage
B. Processing, Application, and computer storage
C. Picture, Archiving and communication System
D. Physician Applications and communication systems correct answers C. Picture Archiving and
communication system
with digital imaging, patient dose can be reduced by using higher____
1. Techniques
2. Optical density
3. mAs
4. Contrast
5. kVp correct answers 5 . kVp
why dose digital radiography have a higher modulation transfer function at low spatial
frequencies than does screen- film imaging?
1. Lower patient dose
2. Fewer repeats
3. Less kVp dependence
4. Better contrast resolution
5. Higher detective quantum efficiency (DQE) correct answers 5. Higher detective quantum
efficiency (DQE)
which is not a part of PACS?
1. a network
2. film storage
3. a display system
4. image acquisition correct answers 2. film storage
the national standard for image transmission in teleradiology is the ____ format
1. MB
2. RIS
3. PACS
4. DICOM correct answers 4. DICOM
which of the following reduces contrast resolution
1. kVp
2. Noise
3. mAs
4. MTF
5. Detective quantum efficiency correct answers 2. Noise
