2Tohnosu N, Schener PJ. Uitasonlhraphic evaluation of cervical lymph node metastases in esophageal cancer with special reference to the relationship between the short to long axis ratio(L/S)and the cancer content[J]. J Clin Uitiasound, 1989,17 : 101-107
3Vassall P,Wernecke K, Roos N, et al. Differentiation of benign from maligant superficial lymphadenopathy:therole of high - resolution[J]. US Radiology, 1992, 183 : 215-220
4Rubalte L, Proto E, Salmaso R, et al. Sonographic of abnormal lymph nodes in vitro: correlation of sonographic and histologic findings[J]. AIR, 1990,155 : 1241
5Vassallo P. Differntiation of benign from malignant superficial lymphadenopathy:The role of high - resolution [J]. US Radiology, 1992,183:215
6Na DG,Lim HK ,Byum HS, et al. Differentail of cervical lymphadenopathy: usefulness of color Dopler sonography[J]. Am J Roentgenol, 1997,168:1311-1316
8Giovagnrio F,Caiazzo R, Avittoa. Evaluation of vascular patterns of cervical lymh nodes with power Doppler sonography[J].J Clin ultrasound, 1997.25(2) : 71-76
9Chang DB, Yuan A, Tu CJ, et al. Differentiation of benign and malignant cervical Lymph nodes with color Doppler sonography[J]. Am J Roentgenol, 1994, 162: 965
8Giovagnrio F,Caiazzo R,Avittoa.Evaluation of vascular patterns of cervical lymh nodes with power Doppler sonography[J].J Clinultrasound,1997.25(2):71-76.
9HoSS,Metreweli C,Ahuja AT.Does anybody know how we should measure Doppler parameters in lymph nodes? Clin Radiol,2001,56(2):124-126.
10Rubaltelli L,Corradin S,Dorigo A,et al.Automated quantitative evaluation of lymph node perfusion on cont rastenhanced sonography.AJ R Am J Roentgenol,2007,188:977-983.
