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Table 4 Comparison of quantitative and qualitative CT findings between HEH and LM

From: Clinical characteristics and CT features of hepatic epithelioid haemangioendothelioma and comparison with those of liver metastases

CT findings

HEH (n = 20)

LM (n = 60)

P value

k coefficient

Classification*

  

0.963

0.912

 Solitary nodular type

3 (15)

8 (13)

  

 Multifocal nodular type

9 (45)

29 (49)

  

 Diffuse types

8 (40)

23 (38)

  

Location*

  

0.000

0.897

 Scattered distribution

7 (35)

51 (85)

  

 Liver subcapsular

13 (65)

9 (15)

  

Contour*

  

0.138

0.846

 Round/round-like

13 (65)

30 (50)

  

 Irregular

3 (15)

24 (40)

  

 Strip‑like/flaky

4 (20)

6 (10)

  

Border*

  

0.005

0.851

 Well defined

13 (65)

18 (30)

  

 Ill defined

7 (35)

42 (70)

  

Density of plain scan*

  

0.639

0.803

 Low

17 (85)

45 (75)

  

 Equal

1 (5)

6 (10)

  

 High

2 (10)

9 (15)

  

Enhancement patter and degree in AP*

  

0.005

0.768

 Minimal

5 (25)

3 (5)

  

 Slightly

5 (25)

13 (22)

  

 Moderate/obvious

0 (0)

17 (28)

  

 Ring-like

9 (45)

27 (45)

  

 Nodular

1 (5)

0 (0)

  

Enhancement patter and degree in PVP*

  

0.068

0.755

 Slightly

12 (60)

22 (37)

  

 Moderate

8 (40)

38 (63)

  

Special signs

    

 Capsular retraction*

13 (65)

6 (10)

0.000

0.892

 Target sign*

9 (45)

7 (12)

0.004

0.794

 Lollipop sign*

10 (50)

3 (5)

0.000

0.813

 Vascular invasion*

3 (15)

12 (20)

0.869

0.773

 Calcification*

2 (10)

4 (7)

0.493

0.958

Extrahepatic involvement

    

 Lung*

3 (15)

16 (27)

0.448

0.742

 Peritoneum*

3 (15)

26 (43)

0.022

0.679

 Lymph node*

1 (5)

37 (62)

0.000

0.703

 Bone*

0 (0)

7 (12)

0.026

0.602

AERa

0.26 ± 0.10

0.37 ± 0.13

0.001

 

PERa

0.58 ± 0.13

0.61 ± 0.15

0.369

 

ATNRa

0.69 ± 0.05

0.71 ± 0.04

0.022

 

PTNRa

0.51 ± 0.04

0.53 ± 0.05

0.056

 
  1. HEH hepatic epithelioid haemangioendothelioma, LM liver metastases, AER arterial enhancement ratio, PER portal enhancement ratio, ATNR arterial tumour to normal parenchyma ratio, PTNR portal tumour to normal parenchyma ratio
  2. *Data are number of patients with the percentage in parenthesis; p values were calculated from χ2 test and Fisher’ exact test
  3. aData are mean ± standard deviation; p values were calculated from student t test