Bushong - Chapter 25 - Exam 3 –
Fluoroscopy correctly answered to pass
Fluoroscopy - correct answer ✔✔A dynamic type of imaging modality
Who invented fluoroscopy? - correct answer ✔✔Thomas Edison - 1896
What does fluoroscopy utilize to increase visualization of images? - correct answer
✔✔Image intensification
Intensification - correct answer ✔✔Brightness = Light ; Making light out of X-rays
Illumination - correct answer ✔✔The principal advantage of image intensified
fluoro in an increased brightness.
Room Conditions for best illumination - correct answer ✔✔lights dimmed/off
ABC's of Image Brightness - correct answer ✔✔Automatic Brightness Control
What techniques are best for image brightness? - correct answer ✔✔High kVp
and low mA - correlates to body part being examined.
Human Vision - Rods - correct answer ✔✔Sensitive to low light levels
, Human Vision - Cones - correct answer ✔✔Sensitive to bright light levels
Why did radiologist wear the red tinted goggles? - correct answer ✔✔To adjust
eyes to better read fluoro image in complete darkness.
Image Brightness must be what? - correct answer ✔✔high - controlled by ABC
What is mA usually set to for fluoro? - correct answer ✔✔Around 5
During fluoro, number of electrons being used to create image is? - correct answer
✔✔A lot less
During fluoro, kVp is? - correct answer ✔✔About the same
During fluoro, patient exposure is? - correct answer ✔✔A lot less but continuously
on.
Instead of mA/sec, we have? - correct answer ✔✔mA available at however long
radiologist pushes foot pedal.
mA controls mAs = - correct answer ✔✔controls exposure to patient.
Image Intensifier Tube - correct answer ✔✔What makes X-rays convert into light.
Fluoroscopy correctly answered to pass
Fluoroscopy - correct answer ✔✔A dynamic type of imaging modality
Who invented fluoroscopy? - correct answer ✔✔Thomas Edison - 1896
What does fluoroscopy utilize to increase visualization of images? - correct answer
✔✔Image intensification
Intensification - correct answer ✔✔Brightness = Light ; Making light out of X-rays
Illumination - correct answer ✔✔The principal advantage of image intensified
fluoro in an increased brightness.
Room Conditions for best illumination - correct answer ✔✔lights dimmed/off
ABC's of Image Brightness - correct answer ✔✔Automatic Brightness Control
What techniques are best for image brightness? - correct answer ✔✔High kVp
and low mA - correlates to body part being examined.
Human Vision - Rods - correct answer ✔✔Sensitive to low light levels
, Human Vision - Cones - correct answer ✔✔Sensitive to bright light levels
Why did radiologist wear the red tinted goggles? - correct answer ✔✔To adjust
eyes to better read fluoro image in complete darkness.
Image Brightness must be what? - correct answer ✔✔high - controlled by ABC
What is mA usually set to for fluoro? - correct answer ✔✔Around 5
During fluoro, number of electrons being used to create image is? - correct answer
✔✔A lot less
During fluoro, kVp is? - correct answer ✔✔About the same
During fluoro, patient exposure is? - correct answer ✔✔A lot less but continuously
on.
Instead of mA/sec, we have? - correct answer ✔✔mA available at however long
radiologist pushes foot pedal.
mA controls mAs = - correct answer ✔✔controls exposure to patient.
Image Intensifier Tube - correct answer ✔✔What makes X-rays convert into light.
