Sonoelastography of parotid gland tumours: initial experience and identification of characteristic patterns
Sonoelastography of parotid gland tumours: initial experience and identification of characteristic patterns
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DOI：
10.1007/s00330-011-2344-7
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发表时间：
2012-05-01
影响因子：
5.9
通讯作者：
Bozzato, Alessandro
中科院分区：
文献类型：
--
作者：
Klintworth, Nils;Mantsopoulos, Konstantinos;Bozzato, Alessandro
目的本研究的目的是探讨能够区分腮腺良性和恶性肿瘤的b超和弹性成像标准，并确定多形性腺瘤和沃辛肿瘤的特征弹性成像模式。方法对57例腮腺肿瘤患者进行b超和弹性超声联合检查。由两名经验丰富的超声操作员回顾性分析所获得的数据，以确定良性和恶性病变的具体超声特征。此外，弹性模式的定义和分析其特殊性。结果边缘模糊是b超鉴别恶性肿瘤和良性肿瘤的唯一标准。花环征被定义为一种在恶性肿瘤中更为常见的弹性图，可提高腮腺病变良性或恶性性质的超声预测。建立的logistic回归模型预测正确率为87.7%。多形性腺瘤也有“致密核”征象，沃辛氏瘤也有“半半”征象。结论弹性成像技术是一种创新而有力的诊断工具，它可以显示易于识别的组织分布特征，从而提高腮腺肿瘤的超声检查水平。腮腺超声造影有助于腮腺肿瘤的良恶性鉴别。弹性“花环征”在恶性腮腺肿瘤中比良性腮腺肿瘤更常见。多形性腺瘤表现为弹性成像的“致密核征”。沃辛氏肿瘤呈弹性“半半征”。腮腺囊肿表现为弹性成像的“靶心征”。
Objectives The aim of this study was to investigate B-mode and elastographical ultrasound criteria capable of differentiating between benign and malignant parotid tumours and to define characteristic elastographical patterns for pleomorphic adenomas and Warthin's tumours.Methods Fifty-seven patients with parotid gland tumours were examined using a combination of B-mode and elastographic ultrasounds. The data acquired were analysed retrospectively by two experienced ultrasound operators to identify specific sonographical features of benign and malignant lesions. Additionally, elastographical patterns were defined and analysed for their specificity.Results A blurred margin proved to be the only significant criterion in B-mode ultrasound capable of differentiating between malignant and benign tumours. The garland sign was defined as an elastographical pattern found significantly more frequently in malignant tumours, improving sonographical prediction of the benign or malignant nature of a parotid lesion. A logistic regression model was developed that achieved a correct prediction in 87.7% of cases. A "dense core" sign was also specifically defined for pleomorphic adenomas and a "half-half" sign for Warthin's tumours.Conclusions Elastography is an innovative and powerful diagnostic tool that can improve the sonographical examination of parotid gland tumours by revealing easily recognised and characteristic patterns of tissue distribution.Key PointsElastography can help differentiate benign from malignant parotid tumours during parotid ultrasound.The elastographical "garland sign" is more frequent in malignant than benign parotid tumours.Pleomorphic adenomas show an elastographical "dense core sign".Warthin's tumours show an elastographical "half-half sign".Parotid cysts show an elastographical "bull's-eye sign".