磁共振成像2017，Vol.8Issue(9)：654-661,8.DOI:10.12015/issn.1674-8034.2017.09.003
DCE-MRI定量参数在不同病理类型腮腺肿瘤鉴别诊断中的初步研究
An initial study using the quantitative parameters of dynamic contrast-enhanced MRI in differential diagnosis for parotid tumors with different pathological types
俞顺 1石清磊 2苏家威 1包强 1库雷志 1郑雪萍1
作者信息
- 1. 福建医科大学省立临床学院福建省立医院放射科,福州350001
- 2. 西门子中国有限公司医学诊断产品事业部,北京100102
- 折叠
摘要
Abstract
Objective: To investigate the value of the quantitative parameters of dynamic contrast-enhanced (DCE) MRI-derived parameters in differential diagnosis for parotid tumor with different pathologic types, in order to provide useful quantitative indicators for accurate preoperative diagnosis of parotid tumors. Materials and Methods: Forty-seven patients with different pathological types of parotid tumors were enrolled and performed DCE-MRI examinations. The region of interest was delineated around the tumor margin, time intensity curve (TIC) and quantitative parameters including Ktrans, Ve, Kep were calculated. The differences of TIC and DCE-MRI-derived quantitative parameters were analyzed among different pathologic type of parotid tumors. Results: (1) Among the 47 patients, the numbers of benign and malignant parotid tumor were 37 and 10. No significant difference was demonstrated about the TIC type between the benign (Type A, B, D: 20. Type C: 17) and malignant parotid tumor (Type A, B, D: 2. Type C: 8) (P>0.05). (2) The Ktrans, Kep values of benign parotid tumor (not included adenolymphoma) were significantly lower than malignant parotid tumor, while the value of Ve was significantly higher than malignant parotid tumor (P<0.05). The Ktrans, Kep values of mix parotid tumor were significantly lower than that of malignant parotid tumor and adenolymphoma (P<0.05). The Ve values of mix parotid tumor were significantly higher than malignant parotid tumor and adenolymphoma (P<0.05). The Ktrans, Kep values of adenolymphoma were significantly higher than malignant parotid tumor (P<0.05). High diagnostic efficiency were demonstrated for Ktrans, Ve, Kep values in differential diagnosis of mix parotid tumor from malignant parotid tumor and adenolymphoma. Conclusions: DCE-MRI derived quantitative parameters can differentiate parotid tumors among different pathological types, especially provides a useful quantitative parameters for the differential diagnosis of parotid tumors which were lack of MRI feature.关键词
磁共振成像/腮腺肿瘤Key words
Parotid neoplasms/Magnetic resonance imaging分类
医药卫生引用本文复制引用
俞顺,石清磊,苏家威,包强,库雷志,郑雪萍..DCE-MRI定量参数在不同病理类型腮腺肿瘤鉴别诊断中的初步研究[J].磁共振成像,2017,8(9):654-661,8.
