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茎突综合征(styloid process syndrome,SPS)是因茎突的形态、长度和方位的异常以及茎突舌骨韧带骨化或茎突周围炎等原因刺激周围神经血管或其他组织而导致的以咽痛为主的征候群[1]。SPS在临床上并不少见,但由于其与慢性咽炎、咽异感症、眩晕症及颈椎病等具有相似的临床表现而容易被误诊。本研究回顾性分析了50例临床诊断为SPS患者的多层螺旋CT(multiple-detector spiral tomography,MDCT)和容积再现、表面遮盖显示(shaded surface display,SSD)重建、多平面重建(multi-planar reconstruction,MPR)及最大密度投影(maximum intensity projection,MIP)的重组资料,旨在探讨MDCT在诊断SPS中的价值,提高对该病的诊断水平。
多层螺旋CT在诊断茎突综合征中的应用价值
Multiple-detector spiral CT in diagnosis of the application value of styloid process syndrome
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摘要:
目的 探讨16层螺旋CT容积再现、表面遮盖法重建、多平面重建技术及最大密度投影技术在成人茎突测量中的应用及对茎突综合征(SPS)诊断的价值。 方法 回顾性分析50例86侧临床诊断为SPS患者的16层螺旋CT及容积再现、表面遮盖法重建、多平面重建、最大密度投影重组资料,并测量茎突的长度及方位角。 结果 茎突长度大于3 cm者69侧(80.2%),分节型茎突者45侧(52.3%),茎突向内偏斜角 > 25°者36侧(41.9%),向前偏斜角 > 25°者5侧(5.8%)。 结论 茎突过长、茎突发育呈分节型和方位角异常是诊断SPS的重要依据。多层螺旋CT的容积再现、表面遮盖法重建、多平面重建、最大密度投影重组可为诊断SPS提供重要依据。 Abstract:Objective To evaluate the value of styloid process measurement using 16-detector row spiral CT with volume rendering, shaded surface display, multi-planar reconstruction and maximum intensity projection reconstruction techniques in the diagnosis of adult styloid process syndrome (SPS). Methods 16-detector row spiral CT with volume rendering, shaded surface display, multi-planar reconstruction and maximum intensity projection reconstruction techniques were used in 50 patients (86 sides) with clinically suspected SPS, the length and deviated angle of styloid process were measured. Results In these 86 sides of styloid process, 69 sides showed the length longer than 3 cm (80.2%), 45 sides showed segmented styloid process (52.3%), the oblique angle of styloid process was deviated internally more than 25° in 36 sides (41.9%), and deviated anteriorly angle more than 25° in 5 sides (5.8%). Conclusion Over-length, segmentation andabnormal deviation of the oblique angle of styloid process are important criteria in the diagnosis of SPS, helpful information could be provided by multiple-detector spiral CT with volume rendering, shaded surface display, multi-planar reconstruction and maximum intensity projection reconstruction techniques. -
Key words:
- Stem axon syndrome /
- Image processing /
- computer-assisted /
- Tomography /
- spiral
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