Acorrelation study between histological results and thyroid ultrasound findings. The TI-RADS classification.

Endocrinología, Diabetes Y Nutrición
Carlos García-Moncó FernándezJuan Carrero-Alvaro

Abstract

There are several classifications based on thyroid ultrasound for selecting suspected malignant thyroid nodules. The Thyroid Imaging Reporting and Data System (TI-RADS) classification proposed by Horvath in 2009 includes 6 categories. To assess the sensitivity of the TI-RADS classification for diagnosing thyroid nodules. A retrospective study of all patients who underwent thyroidectomy at our hospital (n=263) from September 2013 to December 2015. After thyroidectomy, histological results were correlated to the ultrasound findings reported. Of the 263 study patients, 75 (28.5%) were diagnosed with thyroid cancer and 188 (71.5%) with benign disease. Correlation of histological results with preoperative ultrasound reports showed an initial sensitivity of 65%. After excluding 15 patients diagnosed with occult microcarcinoma, sensitivity increased to 81.6%. The ultrasound images from 11 false negatives cases were then reassessed by a radiologist who knew histological diagnosis and reclassified 10 of them as TI-RADS≥4. This procedure could have increased sensitivity up to 98.3%. Although the sensitivity initially found in our study using the TI-RADS scale was relatively low, the value markedly improved when patients with occult micro...Continue Reading

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