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首页> 中文期刊> 《中国数字医学》 >对腺样体肥大儿童进行CT多平面重建与仿真内镜检查的诊断价值

对腺样体肥大儿童进行CT多平面重建与仿真内镜检查的诊断价值

         
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目的：探讨螺旋CT多平面重建与仿真内镜技术在儿童腺样体肥大中的诊断价值。方法：将60例4-13岁腺样体肥大的儿童随机分为实验组和对照组（每组30例）。实验组行鼻咽部CT扫描及鼻内镜检查，并使用CT扫描机同机工作站进行仿真内镜检查，构建重组图像。对照组行鼻咽侧位X线平片扫描及鼻内镜检查。两组均通过蝶-枕骨结合部层面，测量正中矢状位腺样体最大厚度与鼻咽腔前后径比值（A/N）、与鼻内镜直视下腺样体肥大的分度进行比较。结果：螺旋CT多平面重建图像能清晰、全面地显示腺样体肥大的程度及其与周围结构的关系。实验组患者中腺样体轻度肥大6例，中度肥大15例，重度肥大9例，与鼻内镜检查结果相符；仿真内镜下可见肥大的腺样体占据后鼻孔：I度阻塞2例，II度阻塞6例，III度阻塞106例，IV度阻塞12例，与鼻内镜检查结果一致（P=0.431）。对照组患者中腺样体轻度肥大5例，中度肥大8例，重度肥大17例，与鼻内镜检查差异有统计学意义（P=0.009）。结论：螺旋CT多平面及仿真内镜检查可更准确、全面、客观地提供腺样体的测量数据，在儿童腺样体肥大的诊断上较鼻咽侧位X线平片具有更高的临床应用价值。%Objective: To explore the diagnostic value of CT multiplanar reconstruction and virtual endoscopy in Pediatric Adenoidal Hypertrophy. Method: A total of 60 children aged 4-13 years were diagnosed with Pediatric Adenoidal Hypertrophy. 30 cases were examined by nasal endoscope and scanned by nasopharyngeal CT with image construction of virtual endoscopy, 30 cases were examined by nasal endoscope and nasopharyngeal lateral X-ray. Two groups measured the maximum thickness of adenoid diameter of nasopharyngeal air space ratio(A/N), then compared with the indexing of adenoid hypertrophy under nasal endoscop. Results: CT multiplanar reconstructional images display showed the degree of adenoid hypertrophy and the relationship with the adjacent anatomic structures more clear. Among the 30 cases of CT scanned,6 cases with A/N<0.6,15 cases with 0.60.7. Hypertrophied adenoid occupied the choanae by virtual endoscopic visible, I degree of obstruction in 2 case, II degree of obstruction in 5 cases, III degree of obstruction in 10 cases, IV degree of obstruction in 13 cases. These results were consistent with those by nasal endoscope. But among the patients of X-ray scanned,5 cases with A/N<0.6,8 cases with 0.60.7, compared with the results of nasal endoscope were differences. Conclusions: CT multiplanar reconstruction and virtual endoscopy prove more accurately and comprehensively measurement data. CT multiplanar reconstruction and virtual endoscopy have promising diagnostic value over lateral X-ray in Pediatric Adenoidal Hypertrophy.

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