腮腺3D-FISP-FS序列小线圈高分辨MRI临床应用  

Clinical application of small surface coil combined with 3D-FISP-FS sequence on high-resolution MRI of parotid gland

作　　者：洪桂洵[1] 初建平[1] 周宙 饶良俊[1] 李树荣[1] 潘碧涛[1] 杨智云[1] 孟悛非[1] 

机构地区：[1]中山大学附属第一医院医学影像科,广东广州510080 [2]深圳市人民医院放射科

出　　处：《影像诊断与介入放射学》2015年第4期272-276,共5页Diagnostic Imaging & Interventional Radiology

摘　　要：目的探讨小线圈3D-FISP-FS序列在腮腺病变的临床应用价值。方法 21例腮腺病变分别采用小线圈和头颈线圈进行MR扫描,以手术所见作为金标准,比较小线圈3D-FISP-FS序列与头颈线圈常规图像显示腮腺内病变、面神经腮腺段、腮腺导管、淋巴结情况及与手术符合率。结果头颈线圈和小线圈腮腺MR成像显示腮腺病变无显著性差异。头颈线圈常规序列面神经显示率低,小线圈结合3D-FISP-FS序列面神经腮腺段主干、颞面干、颈面干、颞面干分支、颈面干分支的显示率分别为100%、80%、73.3%、53.3%、53.3%,与手术所见符合率为100%;腮腺导管有无受病灶侵犯或压迫,腮腺区淋巴结有无增大或形态异常亦得到准确显示。结论小线圈结合3D-FISP-FS序列较头颈线圈常规扫描有较大优势,可以清晰显示面神经腮腺段及主要分支、腮腺导管与病变的关系。Objective To investigate the clinical application of small MR surface coil in parotid gland diseases. Methods 21 patients with parotid gland diseases underwent MR imaging using a small surface coil with 3D-FISP-FS sequence and conventional head and neck coil with routine sequences. Using surgical findings as the gold standard, the characteristic of the parotid lesions, visibility of intra-parotid facial nerves and parotid ducts, and status of intraparotid lymph nodes were compared on the images obtained with the two coils. Results The imaging characteristic of the parotid lesions were similar with both coils. Visualization of facial nerve was inferior using head ＆ neck coil with higher display rates of the main trunk （100%）, temporofacial branches （80%） and sub-branches （53.3%）, cervicofacial branches （73.3%） and sub-branches （53.3%） using the small surface coil combined with the 3D-FISP-FS sequence. The correlation with operative findings was 100%. Parotid duct compression or invasion and intraparotid lymph node involvement were also accurately depicted. Conclusion Small surface coil with 3D-FISP-FS sequence is superior to conventional MRI using head and neck coil with clear depiction of the intraparotid facial nerves and parotid ducts.

关 键 词：磁共振成像 高分辨 小线圈 腮腺 面神经 腮腺导管 

分 类 号：R445.2[医药卫生—影像医学与核医学] R781.7[医药卫生—诊断学]