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Table 1 Characteristics of the patients and MRI features of the thyroid nodules

From: Diagnostic efficacy of multiple MRI parameters in differentiating benign vs. malignant thyroid nodules

Parameters

Benign nodules

Malignant nodules

P

Age (years)

57.4 ± 13.4b

45.5 ± 12.7b

0.700

Gender (male: female)

37:111a

23:88a

0.419

Size (mm)

20.1 ± 12.6b

12.0 ± 7.5b

< 0.001

Location

  

0.525

 Right lobe

78 (52.7%)

62 (55.9%)

 

 Isthmus of thyroid

7 (4.7%)

8 (7.2%)

 

 Left lobe

63 (42.6%)

41 (36.9%)

 

Margin

  

0.080

 Clear

45 (30.4%)

23 (20.7%)

 

 Vague

103 (69.6%)

88 (79.3%)

 

Shape

  

< 0.001

 Regular

136 (91.9%)

11 (9.9%)

 

 Irregular

12 (8.1%)

100 (90.1%)

 

Pseudocapsule sign

  

< 0.001

 Yes

70(47.3%)

6(5.4%)

 

 No

78(52.7%)

105(94.6%)

 

Signal intensity

  

0.079

 Homogeneous

17 (11.5%)

22 (19.8%)

 

 Heterogeneous

131 (88.5%)

89 (80.2%)

 

Cystic degeneration

  

< 0.001

 Yes

102(68.9%)

19(17.1%)

 

 No

46(31.1%)

92(82.9%)

 

High signal cystic area on T1WI

  

< 0.001

 Yes

63(42.6%)

9(8.1%)

 

 No

85(57.4%)

102(91.9%)

 

Ring sign

  

< 0.001

 Yes

2(1.4%)

72(64.9%)

 

 No

146(98.6%)

39(35.1%)

 

ADC values (×10−3 mm2/s)

1.946 ± 0.349b

1.260 ± 0.225b

< 0.001

Degree of enhancement

  

0.012

 Mild

11 (7.4%)

10 (9.0%)

 

 Moderate

89 (60.1%)

82 (73.9%)

 

 Marked

48 (32.5%)

19 (17.1%)

 
  1. Data are numbers of patients, unless indicated otherwise. Numbers in parentheses are percentages
  2. aGender ratio
  3. bmeans ± standard deviation