| 郭晓东,蔡祖龙,宋学坤,曹丹庆,赵绍宏.螺旋CT三维重建在颅底病变的应用[J].中国医学影像技术,1998,14(6):417~420 |
| 螺旋CT三维重建在颅底病变的应用 |
| Clinical Application of three Dimensional Spiral CT in The Diseases of Skull Base |
| 投稿时间：1997-09-15 |
| DOI： |
| 中文关键词: 颅底 螺旋扫描 三维CT 重建 |
| 英文关键词:Skull base Spiral scan 3DCT Reconstruction |
| 基金项目: |
|
| 摘要点击次数: 1463 |
| 全文下载次数: 548 |
| 中文摘要: |
| 目的：探讨螺旋CT3D重建的临床应用价值和重建技术。方法：30例中男性18例, 女性12例, 均经手术和病理证实。均用螺旋CT扫描, 层厚3～5mm床进速度为3～5mm/s, 薄层重建1～3mm, 颅内肿瘤均行增强扫描。3D重建在独立诊断台上进行, 选择重建时的合适阈值, 颅骨100～200Hu, 肿瘤80～100Hu, 分别进行颅骨、肿瘤及血管的3D重建并用假彩色技术处理, 使用不同的旋转轴观察病变, 测量肿瘤在三维空间的距离、角度和体积。结果：全部病例都能清楚显示病变的立体解剖图像及其与周围关系, 显示瘤体与血管关系者22例。结论：3DCT简化了观察者的思维过程, 可直观地了解病变在三维立体空间的实际大小、形态、位置及周围组织结构的立体解剖关系, 为制订手术方案和放疗计划提供了客观依据。并可用于形象化教学。 |
| 英文摘要: |
| Purpose:To evaluate the value of clinical application of 3DCT and reconstructive techniques. Methods:We carried out 30 cases on 18 men and 12 women,All cases were confirmed by operation and pathology.All examinations were carried out by spiral CT.Slice thickness is 3￣5mm,table feed 3￣5mm/s, reconstructions index 1￣3mm.The enhanced CT were performed in intracranial tumors.The 3D reconstructions were performed using the standard software on the evaluation console (workstation),Selected threshold of reconstruction,cranial bone 100￣200HU,tumor 80￣100HU.tumor and blood vessel were obtained with pseudo color technique and MIP postprocessing algorithm.We viewed the lesion using diffient rotation and measured distance,angle and volume.Result:All cases were clearlly showed 3D anatomy and their relationships in 22 cases.Conclusion:(1)Simplifying the course of viewer’s thought and making diagnosis at first view.(2)vividly demostrating the size,shape,location and spatial relationships of the lesions.(3)Providing information for operation omd rediotherapy.(4)Facility for teaching. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
