|
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%)
| |
- Data are numbers of patients, unless indicated otherwise. Numbers in parentheses are percentages
- aGender ratio
- bmeans ± standard deviation
