期刊文献+

16层螺旋CT对副鼻窦检查的技术优势 被引量:3

The technique advantages of 16-detector multic-slice spiral CT in diagnosis of paranasal sinuses
下载PDF
导出
摘要 目的探讨副鼻窦16层螺旋CT扫描的技术优势和图像后处理技术的合理应用。方法采用德国西门子Sensation16多层螺旋扫描机,对68例临床诊断鼻窦炎的病人行轴位螺旋扫描,准直0.75mm,床速5mm/cycle,重建薄层高分辨率图像系列,层厚1mm,间隔0.5mm,卷积核H70hverysharp。将图像系列载入3D卡,利用多平面重组技术(MPR)行标准轴位、冠状位、矢状位2次图像重建,层厚1mm,间隔0.5mm,多方位观察鼻腔和鼻窦的细微结构,重点观察窦口鼻道复合体。结果多平面2次重建图像具有高清晰各向同性,能清楚显示鼻腔、副鼻窦的细微结构(包括窦口鼻道复合体变异及鼻窦炎的基本CT改变)。结论16层螺旋CT各向同性的多平面二次图像重建技术为副鼻窦检查提供新的方法。 Objective To study the technique advantages and the rational image processing of 16-detector mutic-slice CT(MSCT) for diseases of paranasal sinuses. Methods Conventional axial spiral scanning of paranasal sinuses were performed in 68 cases of chronic sinusitis using a SIEMENS Sensation 16 MSCT scanner. The collimation was 0.75mm, table speed was 5mm/cycle. Reconstructed a series of thin slice and high resolution imags, the slice thickness was lmm, 50% increments(0.5mm), the kernel was H70h very sharp. Then loaded the images series into 3D card, the imags were reconstructed into standard axial, coronal and sagittal secondary recongstruction images with software of multi-planar reconstruction (MPR). The ostiomeatal complex was mainly observed, especially the small anatomic structures of paranasal sinuses from different orientation. Results MPR secondary recongstruction images could reach the isotropy, the small anatomic structures of paranasal sinuses could clearly demonstrated, Conclusion The technique of MPR secondary recongstruction of 16-detector MSCT will provide a new modality for diseases of paranasal sinuses.
出处 《影像诊断与介入放射学》 2008年第5期197-199,共3页 Diagnostic Imaging & Interventional Radiology
基金 珠海市卫生局科研基金编号2002060
关键词 副鼻窦 体层摄影术 X线计算机 图像处理 计算机辅助 Paranasal sinuses Tomography, X-ray computed Image processing,computer-assisted
  • 相关文献

参考文献7

  • 1Klingenbeck RK,Schaller S, Flohr T, et al. Subsecond multi-slice computed tomography : basics and applications. Eur J Radiol,. 1999, 31:110-124.
  • 2Rydberg J ,Buckwalter KA, Caldemeyer KS, et al . Multisection CT : scanning techniques and clinical applications. Radiographics, 2000,20:1787-1806.
  • 3Lloyd. GAS.Lund V, Scadcling. CT of the paranasal sinuses and functional endoscopic surgery;a critical analysis of 100 symptomatic patients, J Larngol, 1991, 105:181.
  • 4Zinreich SJ ,Kenndy DW, Rosenbaum AE ,et al. paranasal sinuses; CT imaging requirements for endoscopic surgery. Radiology,1987, 38:1189.
  • 5张跃珍,李睿.副鼻窦CT两种扫描方法的比较分析[J].实用医技杂志,2002,9(5):324-324. 被引量:7
  • 6柳澄,秦维昌.多层螺旋CT(一)[J].医学影像学杂志,2000,10(3):194-195. 被引量:42
  • 7Rigatus H, Marchal G ,Baert AL ,et al .Spiral scanning and the influence of the reconstruction algorithm on image quality. Comput Assist Tomography,1990,14:673-676.

共引文献47

同被引文献28

引证文献3

二级引证文献4

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部