摘要
目的探讨磁共振增强三维扰相梯度回波序列(MRI CE 3D-SPGR)对异常乙状窦的诊断价值。方法对33例搏动性耳鸣患者行MRI CE 3D-SPGR检查,并在工作站行多平面重组、曲面重组等图像后处理,观察、测量和记录异常的乙状窦影像学表现。结果 19例均清晰显示异常的乙状窦,对应的乙状窦沟骨壁变薄,13例显示乙状窦通过骨缺损的部位突入蜂房内形成憩室,6例显示乙状窦前壁局部边缘毛糙欠光滑,呈"锯齿"状改变。结论MRI CE 3D-SPGR对异常乙状窦具有较高的诊断价值,但在显示乙状窦沟骨壁缺损方面逊色于颞骨HRCT。
Objective To discuss the clinical value of MRI CE three-dimensional spoiled gradient echo sequences（3DSPGR） in diagnosing abnormal sigmoid sinus.Methods MRI 3D-SPGR scanning was performed in 33 patients with pulsatile tinnitus.Image post-processing,including multi-planar reformation（MPR） and curved planar reformation（CPR）was carried out.The abnormal sigmoid sinus was measured and the imaging findings of the abnormal sigmoid sinus were recorded.Results The abnormal sigmoid sinus was clearly displayed on MRI images in all 19 cases.The bony wall of the corresponding sigmoid sinus groove became thinning.In 13 cases,the sigmoid sinus protruded into the hive through the bone defect to form diverticulum.In 6 cases,the anterior wall edge of sigmoid sinus was coarse and unsmooth with a slightly serrated border.Conclusion MRI CE 3D-SPGR sequence scanning carries higher diagnostic value for abnormal sigmoid sinus,although it is inferior to temporal bone HRCT in displaying bony wall defect of sigmoid sinus groove.
出处
《临床放射学杂志》
CSCD
北大核心
2014年第10期1609-1611,共3页
Journal of Clinical Radiology
