Dove S B, McDavid W D
University of Texas Health Science Center, San Antonio.
Dentomaxillofac Radiol. 1992 Aug;21(3):127-34. doi: 10.1259/dmfr.21.3.1397467.
The detection of proximal surface caries by the visual interpretation of bitewing radiographs is known to be relatively inaccurate. The present study was designed to examine whether computer image processing could improve the diagnostic accuracy. A computer-aided, software-driven, TV-based system was used to digitize conventional radiographs and digitally process the images using histogram equalization and grey-scale inversion to enhance the images. The computer-enhanced images were compared with conventional intra-oral radiographs for the detection of proximal surface caries using receiver operating characteristic analysis. The results indicate that the digital image processing techniques used did not improve the diagnostic accuracy of dental radiographs. No significant difference in diagnostic accuracy could be detected between the non-enhanced digital images and conventional film-based images for the detection of proximal surface caries.
通过咬合翼片X线片的视觉判读来检测邻面龋，已知其准确性相对较低。本研究旨在检验计算机图像处理是否能提高诊断准确性。使用一个计算机辅助、软件驱动、基于电视的系统对传统X线片进行数字化，并利用直方图均衡化和灰度反转对图像进行数字处理以增强图像。使用受试者工作特征分析，将计算机增强后的图像与传统口腔内X线片用于检测邻面龋的情况进行比较。结果表明，所使用的数字图像处理技术并未提高牙科X线片的诊断准确性。在检测邻面龋方面，未增强的数字图像和传统胶片图像之间在诊断准确性上未检测到显著差异。
