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Which of the following are true regarding spatial resolution? a. Intrinsic resolution refers to resolution from the camera and collimator b. The addition of a collimator decreases intrinsic resolution further c. The larger the patient, the worse the spatial resolution d. Spatial resolution can be tested using a bar test pattern e. Spatial resolution can be tested by imaging a line source |
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Answer» a. False. Intrinsic resolution refers to the camera in the absence of the collimator. b. True. c. True. The larger the patient, the greater the amount of attenuation and scatter, resulting in reduced spatial resolution. d. True. This is made up of lead stripes on a uniform sheet source. e. True. This usually consists of a tube containing Tc-99m. |
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