Telegram Radiology Club

30 Questions | Total Attempts: 2780

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Radiology Quizzes & Trivia

Questions and Answers
  • 1. 
    The source of the x-ray electrons in the x-ray tube is:
    • A. 

      Target (tungsten)

    • B. 

      Anode

    • C. 

      Filament

    • D. 

      Vacuum housing

  • 2. 
    Which of the following factors does NOT affect the radiographic's image sharpness?
    • A. 

      Exposure factors

    • B. 

      Ambient lighting

    • C. 

      Geometry

    • D. 

      Patient motion

  • 3. 
    The SI unit for absorbed dose is:
    • A. 

      Gray

    • B. 

      Rad

    • C. 

      Sievert

    • D. 

      Becquerel

  • 4. 
    The lateral malleolus is part of: 
    • A. 

      Tibia

    • B. 

      Talus

    • C. 

      Fibula

    • D. 

      Calcaneus

  • 5. 
    The appearance of water, urine, bile and fluid collection in ultrasound images is:
    • A. 

      White

    • B. 

      Grey

    • C. 

      Echogenic

    • D. 

      Anechoic

    • E. 

      Bright

  • 6. 
    The ideal gamma-ray energy for nuclear medicine imaging is between:
    • A. 

      500 and 1000 MeV

    • B. 

      10 and 50 MeV

    • C. 

      100 and 200 MeV

    • D. 

      10 and 50 keV

    • E. 

      100 and 200 keV

  • 7. 
    When a slice is selected in MRI imaging, what happens in the rest of the patient?
    • A. 

      The larmor frequencies are not changed

    • B. 

      Rotation of magnetization by RF excitation pulse

    • C. 

      The larmor frequencies change

    • D. 

      RF is turned off

    • E. 

      Nothing changes

  • 8. 
    The CT number for water, when expressed as a Hounsfield unit (HU), has a value of:
    • A. 

      -1000

    • B. 

      -500

    • C. 

      0

    • D. 

      500

    • E. 

      1000

  • 9. 
    The U/S mode which cannot produce an image on the monitor is:
    • A. 

      A-mode

    • B. 

      B-mode

    • C. 

      C-mode

    • D. 

      M-mode

    • E. 

      Contrast-enhanced ultrasound

  • 10. 
    Arthrography is done by injecting contrast media into:
    • A. 

      The bone

    • B. 

      The joint space

    • C. 

      The ligaments

    • D. 

      The muscle

    • E. 

      Musculotendinous junction

  • 11. 
    The area of high signal in MRI image appears as:
    • A. 

      Black

    • B. 

      White

    • C. 

      Dark grey

    • D. 

      Grey

    • E. 

      Pink

  • 12. 
    The major advantage of spiral CT is:
    • A. 

      Large volume imaging

    • B. 

      One second imaging time

    • C. 

      Sub-second image time

    • D. 

      Removal of ring artifacts

    • E. 

      Imaging without x-ray

  • 13. 
    When hydrogen nuclei are placed in a magnetic field they:
    • A. 

      Interact with surrounding air

    • B. 

      Align parallel and antiparallel with the field

    • C. 

      Rotate counter clockwise

    • D. 

      Align parallel with the field

    • E. 

      Nothing happens to them

  • 14. 
    One of the following effects is not caused by ultrasound:   
    • A. 

      Heating

    • B. 

      Cavitaions

    • C. 

      Mechanical

    • D. 

      Thermal

    • E. 

      Ionisations

  • 15. 
    The artificial contrast material used most frequently in studies of the vascular system is:
    • A. 

      Iodine

    • B. 

      Barium

    • C. 

      Air

    • D. 

      Carbon Dioxide

    • E. 

      Sodium

  • 16. 
    All of these are types of RF coils used in magnetic resonance imaging except:
    • A. 

      The volume coil

    • B. 

      The surface coil

    • C. 

      The phased coil

    • D. 

      The solenoid coil

    • E. 

      The curved coil

  • 17. 
    On longitudinal ultrasound scan, the prostate appears …………. to urinary bladder:
    • A. 

      Anterior

    • B. 

      Above

    • C. 

      Right

    • D. 

      Left

    • E. 

      Posterior

  • 18. 
    Which of the following modalities has the highest spatial resolution? (in standard imaging parameters)  
    • A. 

      MRI

    • B. 

      Nuclear Medicine

    • C. 

      Ultrasound

    • D. 

      CT

  • 19. 
    In PET/CT, imaging using 18F-FDG, when should the scanning begin after the injection?
    • A. 

      15-30 seconds

    • B. 

      1-2 minutes

    • C. 

      45-60 minutes

    • D. 

      6 hours

    • E. 

      72 hours

  • 20. 
    The examination that involves emission of a signal from a patient is:
    • A. 

      CT

    • B. 

      Ultrasound

    • C. 

      MRI

    • D. 

      Projection radiography

    • E. 

      Spiral CT

  • 21. 
    To reduce the scan time in MRI imaging we have to
    • A. 

      Decrease TR

    • B. 

      Increase TR

    • C. 

      Use special RF coils

    • D. 

      Decrease number of active RF coils

    • E. 

      Put patients in prone position

  • 22. 
    To see normal gallbladder in U/S exam the patient must be:
    • A. 

      8-10 hour fasting

    • B. 

      Full bladder

    • C. 

      After eating fatty meal

    • D. 

      After drinking water

    • E. 

      In erect position

  • 23. 
    The radiopharmaceutical agents or tracers given to the patient in nuclear medicine tests give energy as:
    • A. 

      X-rays

    • B. 

      Sound waves

    • C. 

      Gamma rays

    • D. 

      Beta particles

    • E. 

      Alpha particles

  • 24. 
    During spiral CT, the motion of the patient couch is
    • A. 

      Stationary

    • B. 

      Rotating

    • C. 

      Advanced step-wise

    • D. 

      Alternating advance retreat

    • E. 

      Continuously advanced

  • 25. 
    By employing high kVp for CT imaging, one can reduce:
    • A. 

      Compton scatter

    • B. 

      Patient dose

    • C. 

      Image artifacts

    • D. 

      Image reconstruction time

    • E. 

      Imaging time.