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The following improve contrast:a. Collimationb. A higher kVc. Reduced beam filtration (for a given kV)d. Films with higher gammae. The use of contrast media |
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Answer» a. True. Collimation improves contrast by reducing scatter. b. False. Higher kV means there is more scatter and less difference in absorption between tissues. c. True. This is due to a reduction of the overall mean energy of the X-ray beam. d. True. e. True. |
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