Value of the contrast-enhanced multi-slice spiral CT in the differential diagnosis of benign and malignant thyroid nodule.

Objective To study the value of the contrast-enhanced multi-slice spiral CT in the differential diagnosis of benign and malignant thyroid nodule. Methods CT imaging of 85 patients with thyroid nodules diagnosed by operation and histopathological examination were analyzed retrospectively, including 30 cases of malignant thyroid nodule and 55 cases of benign thyroid nodule. The differences between benign and malignant thyroid nodules were compared. Results Among the 30 cases of malignant thyroid nodule, 25 were even improved, 5 were uneven improved. Among the 55 cases of benign thyroid nodule, 11 were even improved, 26 were uneven improved, and 18 were not improved. There were statistically significant different in enhanced mode between benign and malignant thyroid nodule (P0.05). There were statistically significant difference in TDC curve between benign and malignant thyroid nodule (P0.05). The peak of enhancement and the added of strengthen value in malignant thyroid nodule were lower than those in benign thyroid nodule (P0.05). Conclusion The contrast-enhanced multi-slice spiral CT are important in the differential diagnosis of benign and malignant thyroid nodule. It can improve the accuracy of diagnosis by analyzing enhanced mode, enhanced range and TCD curve.