4Wong CK,Wheeler MH. Thyroid nodules:rational ma- nagement[J]. World J Surg,2000,24:934-941.
5Hegedus L. The thyroid nodule[J]. N Engl J Med, 2004,351 : 1764-1772.
6Cooper DS,Doherty GM,Haugen BR,et al. Revised American Th- yrid Association management guidelines fin" patients with thyroid nodules and differentiated thyroid cancer[J]. Thyroid,2009,19: 1167-1214.
7Cappelli C,Pilola I,Cumetti D,et al. Is the anteroposterior and transverse diameter ratio of nonpalpable thyroid nodules a sono- graphic criteria for recomending fine-needle aspiration cytoloby[J]. Clin Endocrinol,2005,63:689-693.
8Kagoya R, Monobe H, Tojima H. Utility of elastography for differ- ential diagnosis of benign and malignant thyroid nodules [ J ]. Oto- laryngol Head Neck Surg,2010,143 (2) :230-234.
9Thomas A, Degenhardt F, Farrokh A, et al. Significant differenti- ation of focal breast lesions : calculation of strain ratio in breast so- noelastography [ J ]. Acad Radiol,2010,17 ( 5 ) :558-563.
10Jin ZQ, Li XR, Zhou HL, et al. Acoustic radiation force impulse elastography of breast imaging reporting and data system category 4 breast lesions [ J ]. Clin Breast Cancer,2012,12 (6) :420-427.
