64排螺旋CT重建技术在茎突综合征中的诊断价值

Value of 64-slice spiral CT reconstruction technique in diagnosis of styloid process syndrome

目的:探讨64排螺旋CT三维容积重建VR和多平面重建MPR(包括曲面重建CPR)在诊断茎突综合征中的临床价值。方法:收集我院临床拟诊为茎突综合征并行64排螺旋CT扫描的18例患者,分别行三维容积重建VR和多平面重建MPR(包括曲面重建CPR)等图像后处理,测量其双侧茎突的长度和内倾斜角度。结果:18例患者(36侧)均通过64排螺旋CT薄层扫描及VR和MPR(包括CPR)重建,36侧茎突中35侧显示清晰,其中1例左侧茎突缺如。茎突长度>30mm者23侧(63.9%),内倾斜角>25度者32侧(88.9%)。双侧茎突长度均<30mm,同时双侧内倾斜角均<25度者仅有1例。结论:茎突过长结合角度异常是诊断茎突综合征的重要依据。64排螺旋CTMPR和VR重建能清楚、直观地显示茎突在三维空间的全貌,准确地测量其长度、角度以及反应其与周围组织结构的关系,是诊断茎突综合征的一种较准确、且理想的检查方法。

Objective： To explore the clinical value of 64-slice spiral CT three dimension volume rendering（VR） and multi-dimension plane rendering （MPR） [ including curved plane rendering （CPR） ] in diagnosis of styloid process syndrome. Methods： Selected 18 patients with suspicious styloid process syndrome, employed three dimension VR and MPR, and measured the length of bilateral styloid process and the inclined angle. Results： 18 patients with 36 sides all had scanned by 64-slice spiral CT and had reconstruction through three dimension VR and MPR. （including CPR）. 35 sides showed clear styloid process, and 1 cases had styloid process lost in left side.23 cases had length of styloid process more than 30 mm （63.9%） and 22 sides had inclined angle more than 25 degree （ 88.9% ）. Only one case had length of styloid process less than 30mm and inclined angle less than 25 degree on both sides. Conclusion： Excessive length of styloid process and abnormal angle play important role in diagnosing styloid process. 6d-slice spiral CT three dimension VR and MPR can display styloid process clearly in three dimension space, measure the length exactly, and show the relationship between styloid process and tissue around distinctly. It is a precise and ideal way for diagnosis of styloid process.