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a Abdominal CT before surgery; the average for the right hepatic lobe, left hepatic lobe, hepatic portal region and abdominal region was 62.1 HU. b Abdominal CT 3 months after surgery; the average CT attenuation value was 1.0 HU, which was lower than before surgery. c Abdominal CT 5 months after surgery; the average CT attenuation value was 32 HU, which was higher than 3 months after surgery.
