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Table 1 Characteristics on US between HAE and ICC

From: Differential diagnosis between hepatic alveolar echinococcosis and intrahepatic cholangiocarcinoma with conventional ultrasound and contrast-enhanced ultrasound

Imaging Features on US

Total(n = 120)

P*

HAE

(n = 60)

ICC

(n = 60)

Conventional US

Location

0.002

  Right lobe

50 (83.3)

33 (55.0)

 

  Left lobe

10 (16.7)

27 (45.0)

 

Lesion size

0.851

   ≤ 5.0 cm

22 (36.7)

24 (40.0)

 

   > 5.0 cm

38 (63.3)

36 (60.0)

 

Echogenicity

0.000

  Hyper or Iso

10 (16.7)

7 (11.6)

 

  Mixed

43 (71.7)

19 (31.7)

 

  Hypo

7 (11.6)

34 (56.7)

 

Margin

1.000

  Clear

28 (46.7)

28 (46.7)

 

  Unclear

32 (53.3)

32 (53.3)

 

  Bile duct dilatation

2 (3.3)

21 (35.0)

0.000

  Pseudocystic appearance

14 (23.3)

1 (1.7)

0.000

  Calcification

29 (48.3)

0 (0)

0.000

CEUS

Arterial phase

0.008

  Hyper-

39 (65.0)

50 (83.3)

 

  Iso-

10 (16.7)

9 (15.0)

 

  Hypo- or Non-

11 (18.3)

1 (1.7)

 

Enhancement pattern

0.000

 Regular rim

53 (88.3)

6 (10.0)

 

  Irregular rim

6 (10.0)

29 (48.4)

 

  Heterogeneous

1 (1.7)

14 (23.3)

 

  Homogeneous

0 (0)

11 (18.3)

 

Portal phase

0.000

  Hyper-

1 (1.7)

0 (0)

 

  Iso-

19 (31.6)

1 (1.7)

 

  Hypo- or Non-

40 (66.7)

59 (98.3)

 

Late phase

0.000

  Hyper-

1 (1.7)

0 (0)

 

  Iso-

16 (26.6)

1 (1.7)

 

  Hypo- or Non-

43 (71.7)

59 (98.3)

 

  Enhancement duration#

201.7 ± 146.4

33.5 ± 59.5

0.000

  Marked wash-out

15 (25.0)

44 (73.3)

0.000

  1. Note.---Unless otherwise indicated, data are number of nodules, with percentages in parentheses
  2. *Statistical analysis using χ2 or Fisher’s exact test demonstrate differences between HAE and ICC
  3. # Data are means± standard deviations
  4. HAE Hepatic alveolar echinococcosis; ICC Intrahepatic cholangiocarcinoma; US Ultrasound; CEUS Contrast enhanced ultrasound