Successive measurement errors of consecutive computed tomography for airway-related craniofacial dimensional measurements

IF 3.4 3区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Journal of Dental Sciences Pub Date : 2024-08-07 DOI:10.1016/j.jds.2024.07.033
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引用次数: 0

Abstract

Background/purpose

The use of computed tomography (CT) for craniofacial measurements is common in medical imaging, but concerns about accuracy and reliability persist, especially with different CT technologies. This study assessed the accuracy of twenty-six common measurements on consecutive CT images from the same patients, using multidetector CT (MDCT) and cone-beam CT (CBCT) with two software programs (Amira and Dolphin).

Materials and methods

Ten adult subjects with consecutive CBCT scans within one year were randomly selected. Another ten subjects with consecutive MDCT scans were paired with the CBCT group based on age, gender, race, occlusion, and craniofacial pattern. All digital imaging and communications in medicine (DICOM) files were randomly coded and analyzed using the two software programs. Intra-examiner reliability was assessed using the intraclass correlation coefficient. Successive measurement errors from consecutive scans for both imaging modalities and software programs were compared.

Results

For most skeletal linear and angular measurements, Dolphin showed greater successive measurement errors compared to Amira. Eight of the 26 common measurements had errors greater than one unit (millimeter or degree). Despite almost perfect intra-examiner reliability for upper airway analysis, average successive measurement errors were notably high, particularly for intraoral and oropharyngeal airway volumes. The successive Dolphin measurement error for oropharyngeal airway volume on CBCT images was over three times that on MDCT images.

Conclusion

Given the substantial successive measurement errors observed during consecutive CT scanning for the upper airway, this study does not support the quantitative use of CT for analyzing changes in airway dimensions for research purposes.

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连续计算机断层扫描在气道相关颅面尺寸测量中的连续测量误差
背景/目的使用计算机断层扫描(CT)进行颅面部测量在医学影像中很常见,但人们对其准确性和可靠性一直存在担忧,尤其是在使用不同的 CT 技术时。本研究使用多载体 CT (MDCT) 和锥束 CT (CBCT),通过两个软件程序(Amira 和 Dolphin)评估了同一患者连续 CT 图像上 26 项常见测量的准确性。根据年龄、性别、种族、咬合情况和颅面形态,将另外 10 名接受过连续 MDCT 扫描的受试者与 CBCT 组配对。所有数字成像和医学通信(DICOM)文件均使用两个软件程序进行随机编码和分析。使用类内相关系数评估检查者内部的可靠性。结果在大多数骨骼线性和角度测量中,Dolphin的连续测量误差大于Amira。在 26 项常见测量中,有 8 项的误差超过一个单位(毫米或度)。尽管上气道分析的检查员内部可靠性几乎完美,但平均连续测量误差明显偏高,尤其是口内和口咽气道容积。CBCT 图像上口咽气道容积的 Dolphin 连续测量误差是 MDCT 图像上的三倍多。
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来源期刊
Journal of Dental Sciences
Journal of Dental Sciences 医学-牙科与口腔外科
CiteScore
5.10
自引率
14.30%
发文量
348
审稿时长
6 days
期刊介绍: he Journal of Dental Sciences (JDS), published quarterly, is the official and open access publication of the Association for Dental Sciences of the Republic of China (ADS-ROC). The precedent journal of the JDS is the Chinese Dental Journal (CDJ) which had already been covered by MEDLINE in 1988. As the CDJ continued to prove its importance in the region, the ADS-ROC decided to move to the international community by publishing an English journal. Hence, the birth of the JDS in 2006. The JDS is indexed in the SCI Expanded since 2008. It is also indexed in Scopus, and EMCare, ScienceDirect, SIIC Data Bases. The topics covered by the JDS include all fields of basic and clinical dentistry. Some manuscripts focusing on the study of certain endemic diseases such as dental caries and periodontal diseases in particular regions of any country as well as oral pre-cancers, oral cancers, and oral submucous fibrosis related to betel nut chewing habit are also considered for publication. Besides, the JDS also publishes articles about the efficacy of a new treatment modality on oral verrucous hyperplasia or early oral squamous cell carcinoma.
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