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使用头颅侧位片与锥形束计算机断层扫描(CBCT)图像分析咽气道:一项横断面回顾性研究。

Analysis of Pharyngeal Airway Using Lateral Cephalogram vs CBCT Images: A Cross-sectional Retrospective Study.

作者信息

Bronoosh Pegah, Khojastepour Leila

机构信息

Department of Oral and Maxillofacial Radiology, Dental School, Shiraz University of Medical Science, Shiraz, Iran.

出版信息

Open Dent J. 2015 Jul 31;9:263-6. doi: 10.2174/1874210601509010263. eCollection 2015.

Abstract

Background : As the basic biological relationship of form and function, changes in the normal pattern of nasopharyngeal space can profoundly affect the development of the craniofacial growth. The lateral cephalogram, part of the patient's normal records for orthodontic treatment, may show some of these changes either at the initial examination or later during treatment. The validity of the information the lateral cephalogram may present, have been questioned previously. The aim of this study was to assess correlation between the area and the volume measurements of pharyngeal airway size in a lateral cephalogram and a 3-dimensional (3D) cone-beam computed tomography (CBCT) scan in adolescent subjects. Materials and Methods : CBCT scan and a lateral cephalogram of 35 subjects which were taken within 1 week were included in this study. Airway area of the region of interest from the lateral cephalogram and airway volume over the same of region of interest from the CBCT scan were assessed for all patients. The correlation between the area and the volume measurements were evaluated statistically by Pearson's correlation coefficient test. Mann Whitney U Test was used for comparing the area and the volume measurements in different sex. Results : Strong correlation was found between lateral cephalogram and CBCT measurements of pharyngeal airway. (r=0.831). Conclusion : Pharyngeal airway area on a lateral cephalogram is correlated strongly with volumetric data on CBCT images. Henceforth the use of CBCT images for volume measurements in orthodontic patients can aid in the better evaluation of airways and acted as a diagnostic instrument in this area.

摘要

背景

作为形态与功能的基本生物学关系,鼻咽部空间正常模式的改变会深刻影响颅面生长发育。头颅侧位片是正畸治疗患者的常规记录的一部分,在初诊时或治疗后期可能会显示出一些此类变化。头颅侧位片所提供信息的有效性此前一直受到质疑。本研究的目的是评估青少年受试者头颅侧位片和三维(3D)锥形束计算机断层扫描(CBCT)中咽气道大小的面积测量值与体积测量值之间的相关性。

材料与方法

本研究纳入了35名在1周内进行CBCT扫描和头颅侧位片拍摄的受试者。对所有患者评估头颅侧位片上感兴趣区域的气道面积以及CBCT扫描同一感兴趣区域的气道体积。通过Pearson相关系数检验对面积测量值与体积测量值之间的相关性进行统计学评估。采用Mann Whitney U检验比较不同性别之间的面积测量值与体积测量值。

结果

发现头颅侧位片与CBCT对咽气道的测量结果之间存在强相关性(r = 0.831)。

结论

头颅侧位片上的咽气道面积与CBCT图像上的体积数据密切相关。因此,在正畸患者中使用CBCT图像进行体积测量有助于更好地评估气道,并可作为该领域的诊断工具。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5082/4598371/149a69e9b8ac/TODENTJ-9-263_F1.jpg

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