【摘要】 目的:建立成人中耳、内耳解剖结构三维立体图像模型。方法:采用螺旋CT薄层扫描(层厚1mm或2mm),小视野(FOV=5cm)、密集重建技术(间隔0.2mm或0.5mm),对90例成人中耳、内耳进行三维成像,包括多平面重组(MPR)、最大密度投影(MIP)、表面成像(SSD)和仿真内窥镜成像(CTVE)。结果:中耳鼓室、听骨链、内耳及内耳道分别三维成像,全面显示了各结构相互关系、表面及内部形态。结论:螺旋CT三维成像能够全面准确观测成人中耳、内耳立体结构。更多还原

【Abstract】 Objective:To establish an anatomic model of adult middle ear and inner ear by using spiral CT three-dimen-sional (3D)reconstruction.Materials and Methods:The middle ear and inner ear in ninety adult cases were performed by thin slice spiral CT examination with slice thickness of 1mm or 2mm and small FOV(FOV=5cm).The reconstruction tech-niques included MPR,MIP,SSD and CT virtual endoscopy (CTVE).3D reconstruction of the tympanic cavity,auditory ossi-cles,the inner ear and internal auditory canal were performed separately.Results:The relationship of each structure and the superficial as well as internal morphology were shown clearly.Conclu sion:SCT3D reconstruction can provide a complete and accurate visualization of the adult middle and inner ear structures.更多还原