Table 2.
Surgery group (n = 84) | |||||
---|---|---|---|---|---|
MWA group (n = 47) | p | ||||
Benign lesions/FTA (n = 44) | PTC (n = 27) | FTC/FVPTC (n = 9) | |||
Composition (n, %) | < 0.05 | ||||
Solid | 23 (47.95%)* | 32 (72.72%) | 24 (88.9%) | 7 (77.78%) | |
Cyst-solid | 14 (29.79%)* | 2 (4.54%) | 3 (11.1%) | 2 (22.22%) | |
Cystic | 10 (21.28%)* | 10 (22.72%) | 0 | 0 | |
Echogenicity (n, %) | < 0.05 | ||||
Hypoechoic | 2 (4.26%)* | 6 (13.64%) | 16 (59.26%) | 4 (44.44%) | |
Isoechoic/hyperechoic | 45 (95.74%)* | 38 (86.36%) | 11 (40.74%) | 5 (55.56%) | |
Margin (n, %) | < 0.05 | ||||
Regular | 47 (100%) | 38 (86.36%) | 14 (51.85%) | 5 (55.56%) | |
Irregular | 0 | 6 (13.64%) | 13 (48.15%) | 4 (44.44%) | |
Calcification (n, %) | |||||
Microcalcification | 7 (14.89%) | 6 (13.64%) | 6 (22.22%) | 1 (11.11%) | |
Coarse/rim calcification | 2 (4.26%) | 9 (20.45%) | 5 (18.52%) | 3 (33.33%) | |
Absent | 38 (80.85%) | 29 (65.9%) | 16 (59.26%) | 5 (55.56%) | |
Shape | |||||
Taller-than-wide | 0 | 1 (2.27%) | 4 (14.81%) | 0 | |
Wider-than-tall | 47 (100%) | 43 (97.72%) | 23 (85.19%) | 9 (100%) | |
ACR TI-RADS | < 0.05 | ||||
TI-RADS 1 | 11 (23.40%)* | 5 (11.36%) | 2 (7.4%) | 0 | |
TI-RADS 2 | 6 (12.77%)* | 2 (4.54%) | 0 | 1 (11.11%) | |
TI-RADS 3 | 20 (42.56%)* | 17 (38.63%) | 6 (22.22%) | 2 (22.22%) | |
TI-RADS 4 | 10 (21.28%)* | 17 (38.63%) | 8 (29.63%) | 4 (44.44%) | |
TI-RADS 5 | 0 | 3 (6.8%) | 11 (40.74%) | 2 (22.22%) |
MWA, microwave ablation; FTA, follicular thyroid adenoma; PTC, papillary thyroid carcinoma; FTC, follicular thyroid carcinoma; FVPTC, follicular variant of papillary thyroid carcinoma; ACR TI-RADS, the Thyroid Imaging Reporting and Data System of American College of Radiology.
*p < 0.05 vs. MWA group.