nmt422q2

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certifiedfly
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98769
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nmt422q2
Updated:
2011-09-18 19:47:10
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nmt422q2
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nmt422q2
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  1. Doubling the matrix______ the number of pixels in
    quadruples
  2. Which of following types of studies has the greatest ability to be manipulated TEMPORALLY to suite different clinical requirements?
    list mode
  3. How well an image is sampled depends on adjusting what?
    pixel size
  4. In gated cardiac acquisition
    each cardiac cycle is divided into multiple frames
  5. Matrix size refers to:
    number of pixels
  6. For better resolution of smallest objects in the FOV, an ideal choice of pixel size would be:
    1/3rd of the system spatial resolution
  7. In word mode acquisition, each pixel can hold a maximum of how many counts?
    65,535
  8. Software zoom magnifies image by:
    pixel replication
  9. An acquisition zoom factor of 2 means:
    field of view is halved
  10. In byte mode acquisition, each pixel can hold a maximum of how many counts?
    255
  11. Images can be viewed DURING acquisition in all of the following, EXCEPT
    list mode
  12. Temporal (time) information of radioactivity concentration in the body can be obtained by all of the following acquisition modes, EXCEPT
    static frame mode
  13. How much memory is required to collect a MUGA study acquired in a 64 x 64 word mode matrix, 16 frames/cycle?
    128KB
  14. For a given FOV, pixel size decreases as matrix size
    increases
  15. Does Software zoom increases spatial resolution of objects?
    no
  16. A camera has a field of view of 51cm2. If a 128x128 matrix is used with a zoom factor of 1.6 what will be the new FOV?
    32cm2
  17. In gated cardiac acquisition:
    each cardiac cycle is divided into multiple frames
  18. In zoom mode acquisition, increase in spatial resolution is achieved by increasing the number of pixels in FOV.
    false
  19. Matrix size refers to
    number of pixels
  20. For better resolution of smallest objects in the FOV, an ideal choice of pixel size would be:
    1/3 of the system spatial resolution
  21. Software zoom magnifies image by:
    pixel replication
  22. The maximum number of counts A PIXEL can hold is NOT affected by the matrix size
    true
  23. An acquisition zoom factor of 2 means:
    the FOV is halved

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