Assessment of Correlation between Dimensions of Ball Phantom and Distortion Rate of Panoramic Radiography in Dental Cone Beam Computed Tomography

Journal of Applied Sciences and Environmental Management Pub Date : 2023-11-28 DOI:10.4314/jasem.v27i11.15

J. Rabba, F. O. Uloko, G. I. Efenji, S. O. Eghaghe, H. A. Jaafar, M. Z. M. Jafri, N. D. Osman

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Abstract

The objective of this study was to assess correlation between dimensions of ball phantom and distortion rate of panoramic radiography in dental cone beam computed tomography (CBCT) system using appropriate standard methods. The results revealed that only two measurement (2.99%) out of 67 measurements exceeded the recommended threshold value for distortion rate. There was no correlation between the ball diameter and the distortion produced. However, a low positive correlation was observed between the distortion rate and the ratio of the horizontal to the vertical diameter of the ball images. Also, the matlab code, presented results which are closer to the acceptable limit than the Romexis software. Patient positioning should be carefully and correctly considered to prevent and to bring the image distortion rate to its barest minimum for proper diagnosis in dental CBCT. For proper diagnosis and treatment planning, this distortion must be accounted for during clinical applications.

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牙科锥形束计算机断层扫描中球型模型尺寸与全景射线照相失真率之间的相关性评估

这项研究的目的是采用适当的标准方法，评估牙科锥形束计算机断层扫描（CBCT）系统中球模型的尺寸与全景放射摄影失真率之间的相关性。结果显示，在 67 次测量中，只有两次测量（2.99%）超过了失真率的建议阈值。球直径与变形之间没有相关性。不过，在失真率与球图像的水平直径与垂直直径之比之间观察到了较低的正相关性。此外，与 Romexis 软件相比，matlab 代码得出的结果更接近可接受的限度。在牙科 CBCT 中进行正确诊断时，应仔细、正确地考虑患者的定位，以防止图像失真并将失真率降到最低。为了进行正确的诊断和治疗计划，在临床应用中必须考虑到这种失真。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of Applied Sciences and Environmental Management

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