The center-of-rotation measurement
A) determines the number of projections.
B) corresponds to the pixel size at the center of the orbit.
C) corresponds to the radius.
D) determines the offset between the camera center and projections.
Correct Answer:
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Q27: Body contouring or elliptical orbits in SPECT
Q28: Compared to a low-energy collimator, a high-energy
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
Q33: Ramp-filtered projections are characterized by
A)a star artifact.
B)edge
Q34: In multihole low-energy collimators, longer and smaller
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
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