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Fig. 1 —Diagram of scan protocol over time axis in each group. Bolus
tracking was started 10 seconds after start of injection of contrast medium
(CM). The 100-H threshold scan delay time for early scan was 10 seconds in
group (GR) 1 and was increased by 2-second increments in each group. Interscan
delay was fixed at 6 seconds. Number of patients (pts) and number of
hepatocellular carcinomas (HCCs) are displayed in parentheses.
