论文部分内容阅读
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 investigate the ability of spiral CT image postprocessing to display nasal sinus disease and its clinical value. Methods: Fifty-six healthy volunteers and 20 patients with clinically suspected nasal lesions were enrolled in this study. Fifty-six patients underwent nasal spiral CT scans. Softwares were used to perform multiplanar reconstruction imaging (MPR) and simulated endoscopic imaging (CTVE) Nasal endoscopy and surgical findings were compared, Wilcoxon grade data using two rank sum test and χ2 test for statistical analysis. Results: The MPR of spiral CT showed the anatomy, nasopharynx, nasopharynx and nasopharynx of the nasopharynx, nasopharynx and nasopharynx from different angles, levels and ranges, as well as airway and anterior skull base. CTVE shows normal anatomy of the nasal cavity, location and extent of the lesion, similar to those seen with endoscopy and surgery, and access to unreachable intracranial endoracias, such as within the sinuses, within the narrow nasal passages, and distal to obstructive lesions . Conclusion: CT image post-processing technique provides a noninvasive, new, economical and safe imaging method for nasal sinus anatomy and lesions. It can make up for the lack of conventional CT and endoscopic sinus surgery, CTVE, MPR and other appropriate Image post-processing technology, combined with horizontal CT at the same time, can increase the amount of diagnostic information to improve the diagnostic accuracy.