In:
Head & Neck, Wiley, Vol. 41, No. 4 ( 2019-04), p. 1024-1031
Abstract:
To determine the usefulness of dual‐energy CT (DECT) iodine quantification to classify the focal thyroid lesions. Methods We retrospectively enrolled a total of 76 cytopathologically confirmed focal thyroid lesions (mean size: 1.9 cm). After drawing a region of interest on the DECT‐derived iodine maps, the obtained iodine concentration values of thyroid nodules (IC_N) and normalized IC_N were compared between 3 groups: papillary thyroid carcinoma (PTC), benign nodule, and cyst. Results From all lesions, 46, 17, and 13 were assigned to the PTC, benign nodule, and cyst groups. IC_N was the highest in the benign nodule, lower in the PTC, and the lowest in the cyst (median [interquartile range]: 4.3 [3.13‐5.48] , 3.15 [2.29‐4.01], 0.60 [0.33‐0.88] , all P 〈 .001). Similarly, the normalized IC_N values were all statistically different from each other ( P 〈 .05).The multi‐class area under the curves using the optimal cutoff values were 0.931 for IC_N and 0.918, 0.920 for normalized IC, respectively. Conclusion DECT iodine quantification could be helpful to classify the focal thyroid lesions.
Type of Medium:
Online Resource
ISSN:
1043-3074
,
1097-0347
Language:
English
Publisher:
Wiley
Publication Date:
2019
detail.hit.zdb_id:
2001440-5
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