Words similar to non-contrast

Example sentences for: non-contrast

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Since the pioneering study on the role of UHCT in the evaluation of ureteric colic by Smith et al [ 1 ] in 1995, a number of studies have shown the superiority of non-contrast enhanced CT over IVU and Ultrasonography [ 2 3 4 5 ] . Its sensitivity and specificity is reported to be more than 95% and 96 % respectively [ 1 2 3 4 5 6 ] . An important disadvantage is a higher radiation dose to the patient [ 7 ] . Denton [ 8 ] noted a difference of 2.5 mSv versus 4.7 mSv in the radiation dose to the patient between IVU and UHCT performed for renal colic.
These dimensions have been assessed in the modern era of stroke clinical trials by clinical criteria at the bedside, usually aided by the exclusion of cerebral hemorrhage or other non-ischemic pathology by non-contrast computed tomography (CT) scan as the only imaging tool required.