In multihole low-energy collimators, longer and smaller holes produce
A) better uniformity.
B) better sensitivity.
C) better intrinsic resolution.
D) better spatial resolution.
Correct Answer:
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Q29: Increased sensitivity for SPECT imaging can be
Q30: In SPECT/CT imaging, it is best if
Q31: When referring to image quality, contrast
A)refers to
Q32: The center-of-rotation measurement
A)determines the number of projections.
B)corresponds
Q33: Ramp-filtered projections are characterized by
A)a star artifact.
B)edge
Q35: Digitization of the signal of each photomultiplier
Q36: When referring to image quality, resolution
A)refers to
Q37: In general, the pixel size should be
Q38: The 360-degree orbit is most often used
Q39: According to the Nuclear Regulatory Commission (NRC),
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