腮腺导管磁共振成像研究  

The study of magnetic resonance sialography in diagnosing parotid diseases

作　　者：陶学金[1] 冯定义[2] 汤国雄[1] 陈卫民[1] 朱声荣[1] 

机构地区：[1]华中科技大学同济医学院附属同济医院口腔医学中心,武汉430030 [2]华中科技大学同济医学院附属同济医院放射科,武汉430030

出　　处：《中华口腔医学杂志》2004年第6期467-470,共4页Chinese Journal of Stomatology

摘　　要：目的　探讨磁共振腮腺导管成像术用于诊断腮腺疾病的可行性 ,并筛选出可获得最佳显示效果的扫描序列。方法　采用 4种不同的扫描序列 ,对 2 3例腮腺疾病患者 (病变组 )及 5名健康志愿者 (对照组 )行磁共振腮腺导管成像。首次扫描后 ,患者含化VitC 2 0 0mg ,于含药后 3、10min再次扫描 ,将所获图像按腮腺导管及其分支显示效果分级 ,比较各扫描序列及服药前后的显示效果。并依据图像对疾病定性诊断 ,将诊断结果与术后病理诊断结果比较。结果　磁共振腮腺导管成像能清楚地显示腮腺主导管、叶间导管、小叶间导管及小叶内导管 ,清楚显示导管有无狭窄、扩张、导管中断及破坏的情况 ,对疾病定性诊断的准确率为 95 6 %。扫描序列中 ,以IR FSE序列的显示效果最佳 ,与FSE比较 ,效果明显提高 (P <0 0 5 )。含服VitC并不显著提高显示效果 (P >0 0 5 )。结论　磁共振腮腺导管成像能清晰显示腮腺导管及其病理改变 ,对腮腺疾病的定性诊断准确率高于普通腮腺造影术。其中IR FSE脂肪抑制序列的显示效果最好 。Objective To study the feasibility of diagnosing parotid disease with magnetic resonance sialography(MRS) and to select the optimal scanning sequence Methods Twenty-three patients with parotid gland disease and 5 normal adults received sialography using magnetic resonance imaging technique and several sequences (including IR-FSE, FSE, SS-IR-FSE, SS-FSE) were used After first scanning, the patients were scanned respectively 3 and 10 minutes after buccal application of vitamine C And MR images of duct obtained The images of parotid duct system were analysed and evaluated according to their displaying effects Qualitative diagnosis was made based on MRI and those diagnosis were compared with pathological diagnosis after operation Results Images of MR sialography clearly displayed the main duct and its branches of parotid gland and the pathological changes of duct, such as narrow, expanded, stoppage Of the scanning sequences, IR-FSE was superior to others in manifesting the parotid gland duct ( P <0 05) The performance of images after being given vitamine C did not significantly improve the displaying effect The accurate rate of qualitative diagnosis was 95 6% Conclusions MR sialography can clearly display the parotid ducts and their pathological changes The accurate rate of qualitative diagnosis of parotid disease was higher than that X-ray sialography

关 键 词：磁共振成像 诊断 腮腺疾病 涎腺造影术 

分 类 号：R445.2[医药卫生—影像医学与核医学]