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Imaging devices in Nuclear Medicine Exam 1 Questions and Answers $13.49   Add to cart

Exam (elaborations)

Imaging devices in Nuclear Medicine Exam 1 Questions and Answers

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  • Course
  • Nuclear Medicine
  • Institution
  • Nuclear Medicine

emission Ans- looking at radiation come out of the patient. transmission Ans- use a radioactive source placed behind the target to project radiation through the target. emission Ans- nuclear medicine is what kind of imaging? x-ray: transmission CT: transmission nuclear medicine: emission ...

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  • August 2, 2024
  • 44
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Nuclear Medicine
  • Nuclear Medicine
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Imaging devices in
Nuclear Medicine Exam 1
Questions and Answers


emission


Ans- looking at radiation come out of the patient.




transmission


Ans- use a radioactive source placed behind the target to project radiation

through the target.




emission


Ans- nuclear medicine is what kind of imaging?




x-ray: transmission

,CT: transmission


nuclear medicine: emission


Ans- identify the scans modality types (emission or transmission):


x-ray


CT


nuclear medicine




it is used to measure the spatial distribution of a radiopharmaceutical. a spatial

and temporal distribution over time.


Ans- What is the purpose of a scintillation camera?




1st component: collimator.


2nd component: scintillation crystal.


3rd: component: photomultiplier tube.


4th component: positioning logic network.


5th component: pulse height analyzer.


Ans- Identify the five components in order of the scintillation camera.

,the collimator is the interface between the patient and the crystal: its job is to

filter out photons based on their direction of travel which maintains the quality

of the image.


Ans- explain the purpose of the collimator on a scintillation camera.




septa are the material in the holes of the collimator that allow the photons to

go through to produce the image.


Ans- what are collimator septa?




They come in different energy sizes - low, medium, and high energy.


Parallel hole: holes are facing directly at what we are trying to image. Used

most often. Does not magnify the image.


Diverging: comes out from the center of the collimator. Pyramid.


Converging: holes all face toward the center. Upside down pyramid. Converging

magnifies the image.


Pinhole: giant cone. Hourglass shape. Best way to magnify the image. Also always

inverts the image.

, Ans- contrast differences between the types of collimators used in nuc med.


energy sizes:


parallel hole:


diverging hole:


converging hole:


pinhole:




always invert the image and are the best to magnify an image.


Ans- pinhole collimators always do what?


they are the best way to do what?




toward the center. (upside down pyramid)


Ans- converging collimators holes all face:




center of the collimator and go out. (pyramid)


Ans- diverging collimators come from the:

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