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- W2000794228 abstract "Using multidetector computed tomography, we compared the utility of a spilt bolus technique and the impact of performing delayed imaging compared with immediate imaging on tumor enhancement.Thirty-seven patients with masses of the extracranial head and neck were imaged. An initial contrast bolus (50 cm) was administered over 30 seconds (1.67 cm/s) and an initial (immediate) imaging acquisition followed. Ninety seconds after completion of the initial bolus, a second bolus of 75 cm (2.5 cm/s) was administered and a second (delayed) acquisition obtained concurrently. Mean tumor enhancement in immediate and delayed imaging was calculated and analyzed using the paired t test.Mean enhancement was 68.3 +/- 21.0 Hounsfield units (HU) and 91.4 +/- 27.4 HU (n = 37) for immediate and delayed imaging groups, respectively. The mean difference between the initial and delayed enhancement was 23.1 HU (P < 0.01).The delayed imaging technique used resulted in a statistically significant increase in enhancement relative to immediate imaging." @default.
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- W2000794228 date "2006-11-01" @default.
- W2000794228 modified "2023-10-18" @default.
- W2000794228 title "Delayed MDCT Imaging Results in Increased Enhancement in Patients With Head and Neck Neoplasms" @default.
- W2000794228 doi "https://doi.org/10.1097/01.rct.0000224622.71832.11" @default.
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