Comparison of ultrasound-guided core needle biopsy for circumscribed solid thyroid nodules without malignant sonographic features with indeterminate cytology
| Conventional Group (n = 26) | Modified Technique Group (n = 61) | P Value | |
|---|---|---|---|
| Mean age of patients (yr) | 46.6 (range, 34–62) | 49.7 (range, 26–73) | .204 |
| Mean tumor size (mm) | 18.3 (range, 4∼39) | 22.3 (range, 7∼60) | .134 |
| Inconclusive rate of US-CNB result | 34.6% (9/26) | 11.4% (7/61) | .018 |
| Malignant ratea | 33.3% (3/9) | 51.9% (27/52) | .473 |
↵a The denominator is the number of the nodules that underwent surgical excision.