腮腺病变的CT评价  

CT Evaluation of Parotid Disease

作　　者：徐凯[1] 彭玲玲[2] 程广军[1] 任忠清[1] 李忠喜[1] 冯守信[1] 孙向东[1] 

机构地区：[1]徐州医学院附属医院CT室,江苏徐州221002 [2]徐州医学院附属医院口腔科,江苏徐州221002

出　　处：《实用放射学杂志》2002年第2期98-100,共3页Journal of Practical Radiology

摘　　要：目的　探讨CT对腮腺疾病的诊断价值。方法　回顾性分析 66例经病理及临床证实的腮腺病变的CT表现。结果　 62例 (94% )表现为腮腺内肿块影 ,4例 (6% )表现为腮腺弥漫性肿大。边缘清楚者 5 0例 (76% ) ,边缘不清者 16例 (2 4% )。CT诊断腮腺肿瘤的敏感性为 96% ,特异性为 5 4% ,准确性为 89% ;阳性预测值为 91% ,阴性预测值为 75 %。以病灶边缘模糊不清作为判断恶性肿瘤的预测指标 ,敏感性为 91% ,特异性为 89% ,准确性为 89% ;阳性预测值为 62 % ,阴性预测值为 98%。结论　CT易于显示腮腺内的病变 ,并能准确地定位。但对于良性肿瘤和非肿瘤性疾病的鉴别有限度 。Objective To evaluate CT diagnostic value in parotid disease.Methods CT findings of parotid gland disease were studied in sixty-six patients retrospectively.Results Masses within parotid glands were depicted in 62(94%) of 66 cases,diffuse enlargement in 4(6%).The margins of lesions were showed clearly in 50(76%),ill-defined in 16(24%).The sensitivity of CT in diagnosis of parotid tumors was 96%,the specificity was 54% and the accuracy was 89%.The positive predictive value was 91%,and the negative predictive value was 75%.The sensitivity,specificity and accuracy of ill-defined margin and infiltration for diagnosis of malignant lesions were 91%,89%,89% respectively.The positive predictive value was 62%,and the negative predictive value was 98%.Conclusion CT is sensitive in demonstrating the presence and location of parotid lesion .There is limitation in distinguishing between a non-tumor lesion and a benign tumor.The ill-defined margin and infiltration of mass is helpful feature in predicting malitnant lesion.

关 键 词：腮腺疾病 体层摄影 X线计算机 临床诊断 鉴别诊断 

分 类 号：R781.7[医药卫生—口腔医学]