Quiz On TV Monitoring In Fluoroscopic Imaging

40 Questions

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Fluoroscopy Quizzes & Trivia

Fluoroscopy is a type of medical imaging that shows a continuous X-ray image on a monitor this isn’t only useful in hospitals. Do you think you have a proper understanding on TV monitoring fluoroscopic imaging? Take this quiz and get to see how knowledgeable you are when it comes to the subject. Best of luck!


Questions and Answers
  • 1. 
    All current cine systems are synchronized, which means that the x-ray tube is energized only during
    • A. 

      The time for it to take images

    • B. 

      When the patient enters the room

    • C. 

      The time when the cine film is in position for exposure

  • 2. 
    The brightness gain of most image-intensifrers is in the range of
    • A. 

      4500-5000

    • B. 

      5000-30000

    • C. 

      3000-50000

    • D. 

      3000-5000

  • 3. 
    The video signal of eth TV camera is directly proportional to the
    • A. 

      Intensity of light

    • B. 

      Electron beam

    • C. 

      Target

    • D. 

      Amt of electrons

  • 4. 
    The brightness of the fluoroscopic image is dependent primarily on the ____________ under studyas well as what two technical factors
  • 5. 
    The two most often used TV camera tubes available for television monitoring fluoroscopy are the
    • A. 

      TV Monitor & grid

    • B. 

      OP & II

    • C. 

      Optical Monitor & plumbicon

    • D. 

      Vidicon & plumbicon

  • 6. 
    how are TV camera tubes are coupled to the image intensifier
    • A. 

      Fiber optics

    • B. 

      Optical lens

    • C. 

      Lens coupling

    • D. 

      The signal plate

  • 7. 
    Larger _____________ results in better img quality but @ increased EXPOSURE when using the ______________ camera in fluoro
    • A. 

      Tubes

    • B. 

      Film format

    • C. 

      Cassette-load

    • D. 

      Photospot

  • 8. 
    In the television camera, the electron gun is a heated filament that supplies a constant electron current through the process of
    • A. 

      Mechanical vacuum

    • B. 

      Cylindrical housing

    • C. 

      Thermonic emission

    • D. 

      Playback

  • 9. 
    The fluoroscope was invented in 1896 by
  • 10. 
    the FOVEA CENTRALIS is
    • A. 

      Rods located in periphery of retina

    • B. 

      Cones concentrated on center of retina

    • C. 

      More than 100,000 per square mm of retina

    • D. 

      Dim light situations

  • 11. 
    Generally, in fluoroscoPY, ________kVp and __________mAs are preferred
    • A. 

      High, high

    • B. 

      High, low

    • C. 

      Low, low

    • D. 

      Low, high

  • 12. 
    electron emission following light stimulation is
    • A. 

      Thermonic emission

    • B. 

      Photocathode

    • C. 

      Cesium

    • D. 

      Photoemission

  • 13. 
    Spatial resolution is better in the magnification mode during image-intensified fluoroscopY because
    • A. 

      only the central region of the IP is used

    • B. 

      Its caused by formation of image resulting

    • C. 

      It results in high contrast resolution

    • D. 

      Magnifies the image from the output phosphor onto a viewing glass

  • 14. 
    The heart of the TV monitor is the
    • A. 

      Rotating anode

    • B. 

      Fiber optic

    • C. 

      Vidicon

    • D. 

      Picture tube

  • 15. 
    what aids the radiologist in viewing dynamic studies
    • A. 

      Fluoroscope

    • B. 

      Telescope

    • C. 

      Vidicon

    • D. 

      Picture tube

  • 16. 
    During fluoroscopy, the x-ray tube is operated at _____________ MA
    • A. 

      More than 5

    • B. 

      Less than 5

    • C. 

      More than 10

    • D. 

      Less than 10

  • 17. 
    Modern fluoroscopic equipment allows the radiologist to select an image brightness level by adjusting either the _ or the___
  • 18. 
    THE IRIS IS
    • A. 

      The part of the human eye that behaves like a dialogue to control the color of the light spectrum

    • B. 

      Part of the human eye that behaves like the diaphragm of a photographic camera to contol the amt of light

    • C. 

      The part of the human eye that behaves like a camera to control what is seen by the human eye

    • D. 

      The part of the human eye that behaves like a diagram of a photonic monitor

  • 19. 
    ______________ are primarily used for daylight vision
    • A. 

      Cones

    • B. 

      Cines

    • C. 

      Optics

    • D. 

      Iris

  • 20. 
    what is daylight vision called
    • A. 

      Photonic vision

    • B. 

      Cone vision

    • C. 

      Translucent vision

    • D. 

      Photopic vision

  • 21. 
    The principal advantage of image-intensified fluoroscopy over conventional fluoroscopy is the increased______________
    • A. 

      speed at which the dynamic images move

    • B. 

      Overall result of the finished product

    • C. 

      Visuality because of the illumination of cone vision

  • 22. 
    The process of wearing red goggles under normal illumination for up to thirty minutes prior to perfonning conventional fluoroscopic examinations was known as
    • A. 

      Visible light

    • B. 

      Red eye

    • C. 

      Dark adapting

    • D. 

      Spot film

  • 23. 
    The electronic device that receives the remnant x-ray beam, converts it into light, and increases the light intensity is the
    • A. 

      Conventional fluoroscope

    • B. 

      Fluorescent screen

    • C. 

      Tv monitor

    • D. 

      Image-intensifier tube

  • 24. 
    When an x-ray interacts with the input phosphor, its energy is converted into
    • A. 

      Matter

    • B. 

      Visible light

    • C. 

      Photopic light

    • D. 

      Vidicon

  • 25. 
    The photocathode emits
    • A. 

      Electrons

    • B. 

      Photons

    • C. 

      Protons

    • D. 

      Neutrons

  • 26. 
    a considerable amount of light is produced when ______________ interact with the output phosphor
    • A. 

      Photons

    • B. 

      Fluorescent screen

    • C. 

      High energy electrons

  • 27. 
    Image-intensified fluoroscopy is visualized under illumination levels of________ to __________lux.
    • A. 

      100, 1000

    • B. 

      3000,5000

    • C. 

      1000, 5000

    • D. 

      500,1500

  • 28. 
    The ability of the image-intensifier tube to increase the illumination level of the image is called
    • A. 

      Visible light

    • B. 

      Vignetting

    • C. 

      Dark adapting

    • D. 

      Brightness gain

  • 29. 
    In a 25ll7ll12 cm tri-focus image-intensifier tube, the numeric values refer to the
    • A. 

      The diameter of output phosphor to input phosphor

    • B. 

      The diameter of input phosphor to output phosphor

    • C. 

      The diameter of input phosphor of II tube

    • D. 

      The diameter of II tube of output phosphor

  • 30. 
     The portion of any image resulting from the periphery of the input phosphor is inherently unfocused and suffers from__________  a reduction in brightness at the periphery
    • A. 

      Dark adapting

    • B. 

      Vignetting

    • C. 

      Brightness gain

    • D. 

      Image intensifying

  • 31. 
    The preferred method of viewing the fluoroscopic image is...
  • 32. 
    The ratio of the number of light photons at the output phosphor to the number at the input phosphor defines
    • A. 

      Minification gain

    • B. 

      Vignetting

    • C. 

      Input to output phosphor ratio

    • D. 

      Ratio of II

  • 33. 
    The device in a television tube which performs a similar function as the filament in the cathode of the xray tube is the
    • A. 

      Glass envelope

    • B. 

      Vacuum envelope

    • C. 

      Screen envelope

    • D. 

      Image envelope

  • 34. 
    The principal disadvantage to coupling the television camera to the image intensifier by using fiber optics is that a cine or ______________cannot be used
    • A. 

      Dynamic image

    • B. 

      Spot film picture

    • C. 

      Spot film camera

    • D. 

      Moving camera

  • 35. 
    The most critical component in optically coupling the image intensifier to a spot film camera is the
    • A. 

      Vidicon

    • B. 

      Tv frame

    • C. 

      Camera lens

    • D. 

      Fluorescent screen

  • 36. 
    The two immediately obvious differences between closed circuit television fluoroscopy and a home television set are ___________ & __________
    • A. 

      No channels & no sound

    • B. 

      No audio & no channel selection

    • C. 

      Audio & channels

    • D. 

      No sound & no audio

  • 37. 
    The specific component of the television monitor that converts the video signal into a visible light image is the_______________ of the picture tube
    • A. 

      Monitor

    • B. 

      Envelope

    • C. 

      Tv frame

    • D. 

      Fluorescent screen

  • 38. 
    Two interlaced television fields make up one
    • A. 

      Tv monitor

    • B. 

      Tv frame

    • C. 

      Cine

    • D. 

      Couple

  • 39. 
    The weakest link to image-intensified fluoroscopy is the
    • A. 

      Tv monitor

    • B. 

      Tv frame

    • C. 

      Cine

    • D. 

      Minification gain

  • 40. 
    The spot film is generally positioned btwn the ________________ & the _________________________
    • A. 

      Camera, table

    • B. 

      Camera, patient

    • C. 

      Patient, II

    • D. 

      Anode, envelope