Nevertheless, the comparison of the CNR values showed a trend toward a maximum value at 60 keV, but the difference was significant only compared to 70 keV for bowel obstruction and 40 keV, 70 keV and mixed images for colitis.
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Determining the Optimal Energy Level of Virtual Monoenergetic Images in Dual-Source CT for Diagnosis of Bowel Obstruction and Colitis.
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