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Table 1 Mean relative signal intensities of both groups (Mean Values ± SD)

From: Cholangiocarcinoma: spectrum of appearances on Gd-EOB-DTPA-enhanced MR imaging and the effect of biliary function on signal intensity

  AP PVP EP HP BP
RSIA      
NTB group 6.87 ± 0.24 4.72 ± 0.21 3.43 ± 0.23 1.40 ± 0.18 0.95 ± 0.16
ETB group 6.12 ± 0.24 3.11 ± 0.24 2.98 ± 0.27 2.09 ± 0.28 1.51 ± 0.15
t 7.731 17.603 4.554 −7.158 −9.023
P value <.001 <.001 <.001 <.001 <.001
RSIV      
NTB group 2.53 ± 0.27 4.12 ± 0.29 3.57 ± 0.25 1.67 ± 0.20 1.01 ± 0.27
ETB group 1.83 ± 0.20 3.00 ± 0.28 2.82 ± 0.21 2.38 ± 0.24 1.93 ± 0.28
t 7.528 9.761 8.005 −8.020 −8.319
P value <.001 <.001 <.001 <.001 <.001
RSIS      
NTB group 3.56 ± 0.48 2.89 ± 0.28 2.33 ± 0.23 1.17 ± 0.27 1.03 ± 0.29
ETB group 2.90 ± 0.35 2.46 ± 0.26 2.01 ± 0.30 1.77 ± 0.27 1.57 ± 0.34
t 4.003 3.965 2.976 −5.480 −4.207
P value <.001 <.001 <.001 <.001 <.001
RSIL      
NTB group 1.94 ± 0.26 2.36 ± 0.38 2.99 ± 0.30 3.27 ± 0.31 3.56 ± 0.28
ETB group 1.01 ± 0.29 1.53 ± 0.27 1.56 ± 0.32 1.66 ± 0.29 1.78 ± 0.31
t 8.441 6.403 11.518 13.362 14.962
P value <.001 <.001 <.001 <.001 <.001
  1. AP = arterial phase; BP = biliary phase; EP = equilibrium phase; HP = hepatocellular phase; ETB = elevated total bilirubin; NTB = normal total bilirubin; PVP = portal venous phase; RSI = relative signal intensity; RSIA = RSI of the abdominal aorta; RSIL = RSI of the liver; RSIS = RSI of the spleen; RSIV = RSI of the portal vein.