摘要
目的:探讨螺旋CT图像后处理技术对鼻腔鼻窦病变的显示能力和临床应用价值。方法:对健康志愿者10例及临床疑为鼻部病变者20例共56侧行鼻腔螺旋CT扫描后,经软件处理,进行多平面重建成像(MPR)和仿真内镜成像(CTVE),与鼻内镜检查和手术所见进行对比研究,利用Wilcoxon等级资料两样本秩和检验和χ2检验进行统计学分析。结果:螺旋CT MPR可从不同角度、各种层面、多方位地显示鼻腔、鼻窦及鼻咽部的解剖结构、病变部位和范围及气道、前中颅底的情况。CTVE可显示鼻腔正常解剖结构、病变位置和范围,与鼻内镜检查和手术所见类似,并可进入鼻内镜无法到达的腔道,如鼻窦内、狭窄的鼻道内以及梗阻病变的远端。结论:CT图像后处理技术对鼻腔鼻窦解剖和病变的显示提供了一种无创、全新、经济、安全的影像学方法,能弥补常规CT和鼻内镜的不足,合理使用CTVE、MPR等多种图像后处理技术,同时与水平位CT相互结合,可以增加诊断信息量,提高诊断正确率。
Objective：To evaluate the display ability and the clinical application of the helical CT reprocessing technique to nasal cavity and paranasal sinus diseases. Method：Ten pioneers and 20 patients with suspected nasal diseases totaling 56 sides of nasal cavities were practised helical CT scanning and then the multiplanar reconstruction and CT Virtual endoscope through the soft ware, compared the results with nasal endoscopy and operative findings. Wilconxon W test and χ^2 test were chosed for statistic analysis. Result： The helical CT could reveal not only the anatomical structure, the location and the extent of the lesions in nasal cavity, paranasal sinuses and nasopharynx,but also the current condition of anterior and middle cranial fossa and the airway from the different angles, sections and multiposition. It could pass easily through the spaces such as nasal sinuses, narrow nasal passsges and the distal site of blocked area compared with nasal endscopic examination. Conclusion： The helical CT technique provides a noninvasive, anewed, economic and safe imageologic procedure. It can retrievce the defections of the routine CT and nasal endoscopy. It is believed that the reasonable use of the CTVE and MPR combine with axial CT can increase the diagnostic information and improve the validity of diagnosis.
出处
《临床耳鼻咽喉头颈外科杂志》
CAS
CSCD
北大核心
2007年第20期922-925,共4页
Journal of Clinical Otorhinolaryngology Head And Neck Surgery
关键词
体层摄影术
X线计算机
图像处理
计算机辅助
鼻腔
鼻窦
Tomography, X-ray computed
Image processing, computer-assisted
Nasal cavity
Paranasal sirius
