RT131: Rad-Physics/Fluoro Exam 2 Study Guide (RTBC QUESTIONS)
Study online at https://quizlet.com/_ekncwx
1. In fluoroscopy, the function of the image Brighten the fluoroscopic image
intensifier is to:
2. Which two of the following are compo- Input phosphor
nents of the image intensifier? (Select Photocathode
two)
3. What is the role of the anti-scatter grid in Increase image contrast
the image intensifier?
4. What is the purpose of electrostatic fo- Funnel the photoelectrons into a concentrated
cusing lenses within an image intensifi- stream
er?
5. What is the final image intensifier energy Analog signal to a digital signal
conversion that occurs before the visual-
ization of the image on a monitor?
6. Which of the following components col- Charge-coupled device (CCD)
lects light photons from the output phos-
phor and converts them to electrons?
7. Which of the following is the first order of X-rays strike the input phosphor
events when operating an image intensi-
fier?
8. What is the voltage difference between 25,000 - 30,000 volts
the photocathode and anode assembly
in an image intensifier?
9. Using a grid in fluoroscopy will increase Image quality
which of the following? (Select two) Patient dose
10. In front of the input phosphor
, RT131: Rad-Physics/Fluoro Exam 2 Study Guide (RTBC QUESTIONS)
Study online at https://quizlet.com/_ekncwx
When using an image intensifier in fluo-
roscopic imaging, where is the grid locat-
ed?
11. Which of the following is accurate re- Fluoroscopic imaging grids have a lower grid
garding grids used in fluoroscopic imag- ratio than radiographic imaging grids
ing?
12. What type of grid orientation is of- Linear
ten found in conventional fluoroscopic
grids?
13. In order to decrease patient dose while
performing a fluoroscopic procedure on
a pediatric patient, the operator should:
14. When performing a fluoroscopic proce- Add on a grid
dure on an adult patient, the operator
notes decreased image contrast due to
high scatter production. Which of the fol-
lowing steps would improve the image
contrast?
15. Crossed grids in fluoroscopic imaging Often used in interventional fluoroscopy
are: (Select two) Two sets of lead strips orientated 90 degrees
from one another
16. Lower ratio grids can be utilized in con- Lower milliamperage (mA) values
ventional fluoroscopy because of the:
17. Which two of the following are character- Fluoroscopy grid ratios offer grid ratios similar
istics of fluoroscopic grids? (Select two) to radiographic grids
Study online at https://quizlet.com/_ekncwx
1. In fluoroscopy, the function of the image Brighten the fluoroscopic image
intensifier is to:
2. Which two of the following are compo- Input phosphor
nents of the image intensifier? (Select Photocathode
two)
3. What is the role of the anti-scatter grid in Increase image contrast
the image intensifier?
4. What is the purpose of electrostatic fo- Funnel the photoelectrons into a concentrated
cusing lenses within an image intensifi- stream
er?
5. What is the final image intensifier energy Analog signal to a digital signal
conversion that occurs before the visual-
ization of the image on a monitor?
6. Which of the following components col- Charge-coupled device (CCD)
lects light photons from the output phos-
phor and converts them to electrons?
7. Which of the following is the first order of X-rays strike the input phosphor
events when operating an image intensi-
fier?
8. What is the voltage difference between 25,000 - 30,000 volts
the photocathode and anode assembly
in an image intensifier?
9. Using a grid in fluoroscopy will increase Image quality
which of the following? (Select two) Patient dose
10. In front of the input phosphor
, RT131: Rad-Physics/Fluoro Exam 2 Study Guide (RTBC QUESTIONS)
Study online at https://quizlet.com/_ekncwx
When using an image intensifier in fluo-
roscopic imaging, where is the grid locat-
ed?
11. Which of the following is accurate re- Fluoroscopic imaging grids have a lower grid
garding grids used in fluoroscopic imag- ratio than radiographic imaging grids
ing?
12. What type of grid orientation is of- Linear
ten found in conventional fluoroscopic
grids?
13. In order to decrease patient dose while
performing a fluoroscopic procedure on
a pediatric patient, the operator should:
14. When performing a fluoroscopic proce- Add on a grid
dure on an adult patient, the operator
notes decreased image contrast due to
high scatter production. Which of the fol-
lowing steps would improve the image
contrast?
15. Crossed grids in fluoroscopic imaging Often used in interventional fluoroscopy
are: (Select two) Two sets of lead strips orientated 90 degrees
from one another
16. Lower ratio grids can be utilized in con- Lower milliamperage (mA) values
ventional fluoroscopy because of the:
17. Which two of the following are character- Fluoroscopy grid ratios offer grid ratios similar
istics of fluoroscopic grids? (Select two) to radiographic grids
