磁共振腮腺导管成像术对慢性阻塞性腮腺炎的诊断价值  

The diagnostic value of magnetic resonance sialography for chronic obstructive parotitis

作　　者：沈宁[1] 俞创奇[1] 杨驰[1] 胡北平[1] 郑凌艳[1] 

机构地区：[1]上海第二医科大学附属第九人民医院口腔医学院口腔颌面外科,上海200011

出　　处：《上海口腔医学》2004年第2期95-97,共3页Shanghai Journal of Stomatology

摘　　要：目的:评价磁共振腮腺导管成像术(MRS)对慢性阻塞性腮腺炎(COP)的诊断价值。方法:18例患者在经X线腮腺造影检查,确诊为慢性阻塞性腮腺炎后,再行磁共振检查。磁共振检查采用重T2加权序列(TR=4000ms,TE=250ms)及快速自旋回波水成像技术并做最大信号强度投影(MIP)处理,获得腮腺导管的成像图像(MRS),比较X线腮腺造影和MRS对慢性阻塞性腮腺炎的诊断准确率。结果:MRS可显示腮腺的主导管和一级分支导管,对COP的定性诊断准确率为94.4%(17/18),定位诊断准确率达100%(17/17)。结论:MRS可成功地用于腮腺的导管系统检查,具有无创性特点,在慢性阻塞性腮腺炎的诊断中,有望取代部分创伤性腮腺造影检查。PURPOSE:To evaluate the diagnostic value of magnetic resonance sialography (MRS) for chronic obstructive parotitis (COP). METHODS:18 patients with COP underwent both conventional sialography and MRI sialography. A new magnetic resonance technique was applied. In addition to the usually performed T1 and T2 cross-sectional sequence, a heavy T2-weighted sequence (TR=4000msec,TE=250msec)was performed that allowed depiction of the fluid-filled parotid duct system. The MRI sialographic findings were compared with that of conventional sialography. The overall accuracy of diagnosis and ductal stenosis were assessed.RESULTS:The main duct of the parotid gland as well as primary branching ducts could be reliably depicted. Compared with the conventional sialography, the diagnostic accuracy of MRS was 94.4%(17/18) and stenosis diagnosis reached 100%(17/17).CONCLUSIONS:Initial experience indicates that magnetic resonance sialography can be applied successfully to investigate the duct system of the parotid gland. It is completely noninvasive and a promising alternative to radiographic sialography.

关 键 词：磁共振腮腺导管成像术 腮腺造影术 慢性阻塞性腮腺炎 诊断价值 

分 类 号：R445.2[医药卫生—影像医学与核医学]