Brägger U
University of Berne, School of Dental Medicine, Switzerland.
J Clin Periodontol. 1988 Oct;15(9):551-7. doi: 10.1111/j.1600-051x.1988.tb02128.x.
The development and the potential impact of digital imaging techniques for the analysis of dental radiographs are reviewed with emphasis on periodontal diagnosis. The introduction of video-based computer-assisted image analysis systems for the evaluation of standardized dental radiographs offered increased diagnostic accuracy in the detection of subtle density changes over interpretation of conventional radiographs. Digital subtraction images were interpreted qualitatively on a video monitor or quantitatively by applying programs which measure the density differences stored in digital format. Recently, these methods, which have been extensively tested in vitro, were applied to clinical trials for the assessment of alveolar bone density changes due to progression of disease or healing following therapy. The application of digital image analysis methods offers objective, quantitative and non-invasive ways to obtain additional diagnostic information from standardized radiographs in clinical trials.
本文综述了用于牙科X光片分析的数字成像技术的发展及其潜在影响，重点在于牙周诊断。用于评估标准化牙科X光片的基于视频的计算机辅助图像分析系统的引入，相比于传统X光片的解读，在检测细微密度变化方面提高了诊断准确性。数字减影图像可在视频监视器上进行定性解读，或通过应用测量以数字格式存储的密度差异的程序进行定量解读。最近，这些已在体外进行广泛测试的方法被应用于临床试验，以评估疾病进展或治疗后愈合导致的牙槽骨密度变化。数字图像分析方法的应用为在临床试验中从标准化X光片中获取额外诊断信息提供了客观、定量和非侵入性的方法。
