Diagnostic Imaging & Radiotherapy Program, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, 50300, Kuala Lumpur, Malaysia.
Quant Imaging Med Surg. 2013 Feb;3(1):43-8. doi: 10.3978/j.issn.2223-4292.2013.02.07.
This study is designed to compare and evaluate the diagnostic image quality of dental panoramic radiography between conventional and digital systems. Fifty-four panoramic images were collected and divided into three groups consisting of conventional, digital with and without post processing image. Each image was printed out and scored subjectively by two experienced dentists who were blinded to the exposure parameters and system protocols. The evaluation covers of anatomical coverage and structures, density and image contrast. The overall image quality score revealed that digital panoramic with post-processing scored the highest of 3.45±0.19, followed by digital panoramic system without post-processing and conventional panoramic system with corresponding scores of 3.33±0.33 and 2.06±0.40. In conclusion, images produced by digital panoramic system are better in diagnostic image quality than that from conventional panoramic system. Digital post-processing visualization can improve diagnostic quality significantly in terms of radiographic density and contrast.
本研究旨在比较和评估传统与数字化全景放射摄影系统的诊断图像质量。收集了 54 张全景图像，并将其分为三组，分别为传统组、数字化组（有/无后处理图像）。将每张图像打印出来，并由两位经验丰富的牙医进行主观评分，他们对曝光参数和系统方案均不知情。评估内容包括解剖覆盖和结构、密度和图像对比度。整体图像质量评分显示，经过后处理的数字化全景图像得分为 3.45±0.19，得分最高，其次是无后处理的数字化全景系统和传统全景系统，相应得分为 3.33±0.33 和 2.06±0.40。总之，数字化全景系统生成的图像在诊断图像质量方面优于传统全景系统。数字化后处理可视化技术可以显著提高放射密度和对比度方面的诊断质量。
