Abstract：Objective: To evaluate the diagnostic value of anteroposterior/transverse diameter ratio(A/T) in cases with thyroid nodules by comparing the A/T values between ultrasonography and gross tissue. Methods: The ultrasonic findings of 85 thyroid nodules in 80 cases confirmed by surgery and pathology were analysed. The A/T values in ultrasonographic transverse and longitudinal planes were measured and compared with the A/T values in the postoperative gross tissue longitudinal plane. The A/T values in ultrasonography and gross tissue of benign and malignant thyroid nodules were observed, and the sensitivity, specificity, positive predictive value and accuracy of A/T>1 in ultrasonography in papillary thyroid carcinomas(PTC) were analysed. Results: Of 85 thyroid nodules, 60 nodules were diagnosed as PTC, the remaining as nodular goiter(NG). Among 60 nodules with PTC, there were 27 nodules with A/T>1 in ultrasonographic longitudinal plane, 8 nodules with A/T>1 in gross tissue longitudinal plane, and 8 nodules with A/T>1 in both ultrasonography and gross tissue. Among 25 nodules with NG, 4 nodules with A/T>1 in ultrasonographic longitudinal plane were found, 2 nodules with A/T>1 in gross tissue, and only 1 case with A/T>1 in both ultrasonography and gross tissue. The coincidence rate of A/T>1 in ultrasonographic and gross tissue longitudinal planes was only 33.33%(9/27), but the coincidence rate of A/T≤1 was 98.27%(57/58). The sensitivity, specificity, positive predictive value and accuracy of A/T>1 in ultrasonographic longitudinal plane in the diagnosis of PTC were 45.00%, 84.00%, 87.09% and 56.47% respectively. The sensitivity, specificity, positive predictive value and accuracy of A/T>1 in ultrasonographic transverse or longitudinal plane in the diagnosis of PTC were 61.66%, 84.00%, 90.24% and 68.24% respectively. Conclusions: There is a large difference in A/T between ultrasonography and gross tissue in thyroid nodules, but A/T>1 in ultrasonography remains an important basis for the judgment of the PTC, the combined application of A/T in ultrasonographic transverse and longitudinal planes can improve the sensitivity, positive predictive value and accuracy of diagnosis of PTC.
丁金旺，韩志江，张 卧，彭 友，罗定存，包凌云，谷 莹，潘 钢. 甲状腺结节超声纵横比与大体组织纵横比的对照研究[J]. 中国临床医学影像杂志, 2016, 27(5): 337-340.
DING Jin-wang, HAN Zhi-jiang, ZHANG Wo, PENG You, LUO Ding-cun, BAO Ling-yun, GU Ying, PAN Gang. A comparative analysis of anteroposterior/transverse diameter ratio between ultrasonography#br# plane and gross lesion tissue in thyroid nodules. JOURNAL OF CHINA MEDICAL IMAGING, 2016, 27(5): 337-340.
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2016, Vol. 27 
