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Table 3 Qualitative imaging traits of ICC tumors in 73 patients with assessment of inter-observer agreement

From: Outcomes assessment in intrahepatic cholangiocarcinoma using qualitative and quantitative imaging features

 

Observer 1

n (%)

Observer 2

n (%)

Kappa

CT

Biliary obstruction

27 (52%)

23 (44%)

0.69

Capsular bulge/retraction

31 (60%)

17 (33%)

0.50

Enhancement pattern

  

0.68

 Peripheral progressive

31 (60%)

32 (62%)

 

 Persistent rim

6 (12%)

7 (13%)

 Othera

15 (28%)

13 (25%)

Satellite lesionsb

14 (27%)

12 (23%)

0.69

Vascular involvement

17 (33%)

21 (40%)

0.59

MRI

Biliary obstruction

14 (39%)

14 (39%)

0.55

Capsular bulge/retraction

16 (44%)

7 (19%)

0.47

Enhancement pattern

  

0.54

 Peripheral progressive

24 (66%)

27 (75%)

 

 Persistent rim

6 (17%)

5 (14%)

 Othera

6 (17%)

4 (11%)

Satellite lesionsb

7 (19%)

5 (14%)

0.60

Vascular involvement

13 (36%)

9 (25%)

0.57

ADC (n = 19)

5 (26%)

9 (47%)

0.93

 Hypointense

14 (74%)

10 (53%)

 

 Other#

  

DWI (n = 19)

  

0.66

 Hyperintense

10 (53%)

15 (79%)

 

 Targetoid

6 (32%)

4 (21%)

 

 Otherc

3 (16%)

0 (0%)

 

HBP (n = 12)

  

1.00

 Hypointense

12 (100%)

12 (100%)

 

 Otherd

0 (0%)

0 (0%)

T2 (n = 36)

  

0.29

 Hyperintense

21 (58%)

24 (67%)

 

 Targetoid

8 (22%)

3 (8%)

 Otherc

7 (19%)

9 (27%)

  1. a Other enhancement patterns include wash in/wash out, solid whole lesion progressive enhancement, hypovascular or totally necrotic
  2. b For the purpose of statistical analysis, patients with multifocal ICC (n = 4) were included in the group designated as positive for satellite lesions
  3. c Other includes isointense and heterogeneous
  4. d Other includes isointense, hyperintense or targetoid