【摘要】 目的:探讨螺旋CT及后处理技术对正常人颌下腺影像的显示。方法:选择不同年龄健康志愿者80例,其中男40例,女40例,并按年龄进行分组,对其颌下腺行4层螺旋CT扫描,应用图像后处理软件测量颌下腺轴面、冠状面、矢状面最大截面积及左右径的大小、左右两腺体间的最近距离、两侧颌下腺后缘连线与颈椎前缘的距离以及腺体CT值,并进行统计学处理。结果:测量结果经统计学分析冠状面、矢状面最大截面积、最大径线及腺间距男女间有显著差异,其中冠状面面积及上下径有极显著性差异。不同年龄分组的冠状位面积、腺间距男女间无显著性差异。结论:螺旋CT及后处理技术能很好地显示颌下腺的影像解剖,并可测量出颌下腺各截面积及各径线长度、腺体CT值,为颌下腺的研究及相关疾病的诊断提供客观依据。更多还原

【Abstract】 Objective:To study the imaging anatomy of submandibular gland(SG) in normal human beings with multi-slice spiral CT(MSCT) and post-processing technique.Methods:80 healthy volunteers with various age were chosen and were divided into different groups according to their ages.The submandibular glands were scanned by MSCT and post-processed with multiplanar reconstruction(MPR) technique,the images on axial,coronal and sagittal planes were obtained,the biggest sectional area and the dimension of SG,the nearest distance between bilateral SG,the distance between the line linking up the posterior margin of bilateral SG and the anterior margin of cervical vertebra,as well as the CT value of SG were measured.Statistical analysis were undertaken.Results:Significant differences were existed between males and females in the biggest dimensions and sectional areas on coronal and sagittal planes as well as the inter-SG distance,of these,marked significant statistical differences were existed in sectional area and upper-lower SG dimension on coronal plane.There was no differences between different age groups of males and females in sectional area as well as inter-SG distance on coronal plane.Conclusion:The imaging anatomy of SG could be showed satisfactorily on MSCT with post-processing technique,the sectional area,dimensions and CT value of SG could be measured,which is an important objective complementary technique for the clinical study of SG and the diagnosis of SG lesions.更多还原