Alternative imaging

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Alternative imaging
2013-08-19 07:27:50

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  1. What technique has the worst resolution?
    nuclear scintigraphy
  2. What is the bone seeker used to decrease absorption time in nuclear scintigraphy?MD
    methylene diphosphate
  3. What is the radionuclide  for nuclear scintigraphy? (excreted in the urine and feces) T
    technetium 99
  4. What route is technetium 99 given?
    • IV
    • transcolon
  5. views/uses of nuclear scintigraphy: TBL
    • thyroid
    • bone
    • liver
  6. How long does technetium 99 take to absorb into soft tissue?
    10 min
  7. How long does technetium take to absorb into bone?
  8. Discharge for nuclear scintigraphy
    24-72 hrs
  9. Sedation or anesthesia for nuclear scintigraphy?
  10. What 2 things is nuclear scintigraphy looking for?
    • hot spots
    • cold spots
  11. What is a hot spot?
    new growth
  12. What is a cold spot?
  13. Rays for nuclear scintigraphy
  14. Image for nuclear scintigraphy
    • film=black and white
    • machine=color
  15. PET stands for
    positron emission tomography
  16. 2 radionuclides used in PET (FDG,F)
    • Fluorodeoxyglucose
    • Fluorine 18
  17. Which radionuclide is the tracer?
    fluorine 18
  18. Route for PET nuclides
  19. Vies/uses for PET (BHC/B&F)
    • brain
    • heart
    • cancer
    • biochemistries and function
  20. Absorption time for PET
  21. Discharge PET
    2 DAYS
  22. Sedation of anesthesia for PET
  23. What do the nuclides for PET combine?
    • glucose ammonia
    • water
  24. What is a PET similar to?
    nuclear scintigraphy
  25. Ray for PET
  26. Image for PET
    3D color
  27. What does CT and CAT stand for?
    • computed tomography
    • computed axial tomography
  28. Are radionuclides required for a CT?
    no it uses x-rays
  29. What route is used for a CT?
    IV for the ionated contrast medium
  30. Views/uses for CT: CvT,CvP
    • cyst v. tumor
    • CNS v. PNS
  31. Scan time for CT
  32. Discharge for CT
    2-3 hrs
  33. Sedation or anesthesia for CT
  34. What is a CT measured in?
  35. A CT can note exactly where what is?
    a brain tumor
  36. What ray does a CT use?
  37. What image does a CT produce?
    cross sectional
  38. What does MRI stand for?
    magnetic resonance imaging
  39. Does a MRI use radionuclides?
    no it uses magnets
  40. What route is used for a MRI?
    dye can be used if the doctor wants
  41. Views/uses of MRI: HSLT
    • head and spine evaluations
    • lesions
    • tumors
  42. Scan time for a MRI
    1 hour
  43. Discharge time for a MRI
    2-4 hrs
  44. Sedation or anesthesia for MRI?
    general anesthesia
  45. MRI is similar to what?
    CT in that it is a cross sectioning image
  46. What is important to not have near a MRI?
    • metal
    • use boundaries or walls for machines
  47. What has the best resolution/technique?
  48. What rays treat bone and eye cancer?
    beta rays
  49. What rays can cause serious damage to living tissues and yet diagnose bone cancer?
    gamma rays
  50. What stays the same no matter how much you give?
    half life decay
  51. The amount of radiation emitted per second by radioactive material
  52. What does Ci stand for?