摘要
目的探讨多层螺旋CT对面神经管垂直部(vertical facical nerve,VFN)毗邻解剖关系的显示与测量的价值及其临床意义。资料与方法(1)标本研究:采用64层螺旋CT对4具干颅标本进行扫描,在横断位分别测量VFN至外耳道后壁、外耳门后缘、乙状窦沟前壁、颈静脉窝的水平距离,以及外耳道后壁至乙状窦沟前壁之间水平距离;按影像层面锯开标本对上述距离行实体测量。影像测量均值与实体测量均值差异行显著性检验。(2)在体研究:随机入选无耳部疾患自愿者118人(236侧),其中女63人(126侧),男55人(110侧);行颌面部CT扫描。测量指标同标本研究。结果(1)标本研究:各项指标的影像测量值与实体测量值差异无统计学意义(P>0.05)。(2)在体研究:VFN距颈静脉窝之间水平距离侧别差异有统计学意义(P<0.05),性别之间差异无统计学意义(P>0.05),其余各项指标测量结果侧别差异无统计学意义(P>0.05),性别差异有统计学意义(P<0.05)。结论多层螺旋CT能较好显示VFN及其周围结构的解剖位置和毗邻关系,可为耳科、面神经疾病及部分神经外科手术术式选择和避免术中意外提供可靠信息。
Objective To observe and measure the anatomical structure of the approach of vertical facial nerve canal, and evaluate their clinical significance. Materials and Methods （ 1 ） Using 64 spiral CT in scanning the four skull specimens, in the axial position, the horizontal distances of the facial nerve canal to the posterior wall of external acoustic meatus, the rear edge of external ear, sulci sigmoideus and the jugular fossa, as well as the horizontal distance between the posterior wall of external acoustic meatus and sulci sigmoideus were measured, then saw the skull specimens to measure the distance in the same lay with CT image, and discussed the statistics difference of the distance between the values of CT imaging measurements and the dry entities cranial measurements on hand. （2） 118 patients （236 cases） with non-ear disorders were randomly selected, including 63 females （ 126 cases） and 55 males （ 110 cases）, they were subjected to maxillofacial CT scan in the same layer that used above. Results （ 1 ） There was no significantly different on the indicator values between CT image and the entity measurements （ P 〉 0.05 ）. （2） In the distance of the facial nerve canal to the jugular fossa, there was significantly different between left side and right side （ P 〈 0.05 ） , while no significantly different between genders（ P 〉 0.05）. However, in the other distances, there was no significantly different between left side and right side （ P 〉 0.05 ） , but significantly different between genders （ P 〈 0. 05 ）. Conclusion Anatomic positions of vertical facial nerve canal and surrounding structure can be demonstrated clearly by mutislice spiral CT, which can provide reliable evidence for the diagnosis and surgery route selection.
出处
《临床放射学杂志》
CSCD
北大核心
2009年第6期777-780,共4页
Journal of Clinical Radiology
关键词
面神经管垂直部
乙状窦沟
体层摄影术
X线计算机
测量
Vertical facial nerve canal Sulci sigmoideus Tomography, X-ray computed Anthropometry
