Is sonoelastography a helpful method for evaluation of parotid tumors?
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- 作者：Ma?gorzata Wierzbicka (1)
Jaros?aw Ka?u?ny (1)
Ewelina Szczepanek-Parulska (2)
Adam Stangierski (2)
Edyta Gurgul (2)
Tomasz Kope? (1)
Marek Rucha?a (2) - 关键词：Ultrasound ; Sonoelastography ; Salivary glands ; Parotid ; Tumors ; Diagnosis
- 刊名：European Archives of Oto-Rhino-Laryngology
- 出版年：2013
- 出版时间：July 2013
- 年：2013
- 卷：270
- 期：7
- 页码：2101-2107
- 全文大小：347KB
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Jaros?aw Ka?u?ny (1)
Ewelina Szczepanek-Parulska (2)
Adam Stangierski (2)
Edyta Gurgul (2)
Tomasz Kope? (1)
Marek Rucha?a (2)
1. Department of Otolaryngology, Head and Neck Surgery, Poznan University of Medical Sciences, 49 Przybyszewskiego St., 60-355, Poznan, Poland
2. Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 49 Przybyszewskiego St., 60-355, Poznan, Poland - ISSN：1434-4726
文摘
Sonoelastography is a novel technique, useful in a noninvasive assessment of lesions in multiple organs. The aim of the study was to examine whether the combination of conventional ultrasonography (US) with sonoelastography might improve the reliability of parotid tumor evaluation. Fourty-three consecutive patients with parotid tumors were surgically treated at a single tertiary center at the Department of Otolaryngology, Head and Neck Surgery. The sample included 27 women and 16 men, aged 15-0 (the mean age?=?54?years). The reference group constituted of 54 healthy volunteers. High resolution grayscale ultrasonography (US) was performed preoperatively using a 15?MHz linear array transducer. Elastograms (ES) were scored by the conventional Ueno 5-point scale from ES1 (blue-soft) to ES5 (the entire lesion and surrounding area shaded red-stiff). In addition, detailed stiffness values in kPa were collected. The group consisted of 33 patients with benign and 10 patients with malignant tumors. The mean stiffness value was 146.6?kPa in 10 malignant tumors (mostly ES4) and 88.7?kPa in 33 benign tumors (mostly ES2 and ES3). The differences in tissue stiffness between normal parotid parenchyma in the reference group and the mean value for all tumors in the examined group were statistically significant (p?<?0.001), and so was the case with the differences between the benign and malignant tumors (p?<?0.001). Low stiffness scores (ES1,2) were found in 2 malignant and 15 benign tumors while high scores (ES3,4) were found in 8 malignancies and 18 benign tumors. Sonoelastography overlapping elasticity to the grayscale images supports additional informations. Preferential selection of the lesions characterized by high stiffness (ES4) improves the differential diagnosis of parotid tumors but the large degree of uncertainty of this method should also be pointed out.