【作者】 贺永斌；

【导师】 姜卫国；

【作者基本信息】 吉林大学 ， 临床医学， 2006， 硕士

【摘要】 多层螺旋CT(Multiple Slice Computed Tomography MSCT)近年来发展十分迅速，它以扫描速度快，连续薄层扫描及薄层重建，时间和空间分辨率均明显提高，在临床工作中应用范围越来越广泛，显示出巨大的优势。近年来多排螺旋CT机的软件已得到不断完善，通过对图像的后处理，病变的解剖关系更加清晰、准确，给广大临床医生诊断疾病提供了极大的帮助。十六排螺旋CT近年来较普遍地应用于临床，其扫描速度更快，扫描一周可达0.8秒，薄层扫描或薄层重建可达0.625mm，对病变观察全面，显示病变周围结构明确，具有十分广泛的应用前景。本文收集了2005年7月至2006年2月行16排螺旋CT扫描的颅面部骨折病人39例，对扫描后的数据进行薄建，所得数据传至工作站后，用三维重建软件对图像进行重建，并对比分析不同的重建模式对颅面部骨折的诊断价值。39例受检者的检查结果如下：单纯骨折病人15例，粉碎性骨折24例，共发现骨折线177条，其中标准重建与骨重建1.25mm层厚发现骨折线数目相同(均为177条)，其中眼眶骨折37处，上颌骨及上颌窦骨折29处，额骨、额窦骨折37处，鼻骨及鼻中隔骨折30处，颞骨骨折15处，筛骨骨折16处，蝶骨骨折9处，下颌骨折3处，颧骨骨折3处，牙骨折1例；视神经管损伤病人5例，眼外肌损伤12例，眼球损伤5人，眼球内出血4例，合并眼球突出2例，眼球缺如1例，累及乳突骨折4例，其中鼓室积血3例，乳突内积血4例，碎骨片进入上更多还原

【Abstract】 Craniofacial fracture is a usual situation in the cases of craniofacial trauma, which can be caused by many kinds of reasons. The traffic accident comes to become the main reason for recently years. It is very important for cases of trauma to make accurate and quickly diagnosis. The diagnoses of craniofacial fracture were mainly dependent on X-ray before CT was turned on. The X-ray images were not clearly for clinic to diagnose complicated fractures because the images were overlay in all body. CT has high density resolution and scan in fault plane. CT become the mainly methods in diagnosis of fracture because it can show bone clearly. The craniofacial bones are complicated in the anatomy construction and the seam of bone. General CT has difficulty in diagnosis of very small and complicated fracture for this region.Recently years CT technology developed very quickly, CT has developed from general CT to spiral CT. The spiral CT has developed to double row and to 64 row. It scanning speed is more and more fast, thickness is more and more thin. The thickness of 64 row CT can get 0.33 mm (most thin). The information is abundance, the images are clearly and the function of post processing software is abundance.We collected all cases scanned by 16 row CT, all the data were reconstructed by thin thickness and observed with three dimension-更多还原