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Table 2 Disease factors in the nonrecurrence and recurrence groups

From: Diffusion-weighted imaging for identifying patients at high risk of tumor recurrence following liver transplantation

Variable

Nonrecurrence

(n = 81)

Recurrence

(n = 16)

P

Preoperatively available data

 AFP level (ng/mL)

15.03 ± 21.60

19.02 ± 28.85

0.526

 Pre-LT treatment

  

0.721

  Yes

68

14

 

  No

13

2

 

 Tumors detected on MRI

  Numbers

  

<  0.001

   No viable tumor

60

5

 

   Within UCSF criteria

21

11

 

  Largest tumor size (cm)

2.83 ± 1.48

3.15 ± 1.77

0.596

  Quantitative indices

   DWIT/L

1.31 ± 0.36

1.56 ± 0.41

0.093

   ADCmean (×  10− 3 mm2/s)

1.50 ± 0.27

1.32 ± 0.30

0.111

   ADCmin (× 10−3 mm2/s)

1.07 ± 0.21

0.78 ± 0.19

0.001

Postoperatively available data

 Histopathologic features

  

< 0.001

  Hepatocellular carcinoma

   Grade 1–2

79

10

 

   Grade 3–4

0

3

 

  HCC + I-CC

1

1

 

  HCC + cHCC-CC

1

2

 

 Microvascular invasion

  

< 0.001

  No

72

7

 

  Yes

9

9

 
  1. Data are presented as numbers or mean ± SD
  2. AFP Alpha-fetoprotein, DWIT/L Tumor-to-liver diffusion weighted imaging ratio, ADC Apparent diffusion coefficient, I-CC Intrahepatic cholangiocarcinoma, cHCC-CC Combined hepatocellular cholangiocarcinoma