光学学报, 2019, 39 (8): 0811002, 网络出版: 2019-08-07
内窥扫频光学相干层析探测牙齿根裂的研究 下载: 1135次
Detection of Dental Root Fractures Based on Endoscopic Swept Source Optical Coherence Tomography
成像系统 内窥成像 光学相干层析成像 内窥导管 三维重建 imaging systems endoscopic imaging optical coherence tomography imaging endoscopic catheter three-dimensional reconstruction
摘要
根裂诊疗是目前牙科临床医学的难点。搭建三维扫频光学相干层析成像系统,结合心血管内窥成像探头,对46个有根裂(裂缝宽度8~283 μm)牙齿切片样本进行扫描成像,该系统对根裂大于30 μm的样本的诊断准确率可达98.3%,对根裂小于30 μm的诊断准确率为36.3%;对25个无根裂样本扫描,诊断准确率为92%。分析准确率差异原因,优化内窥导管探头与牙齿切片的相对位置和角度,并对部分图像进行三维重建,使得根裂大于30 μm的样本的诊断准确率提高到100%,根裂小于30 μm的诊断准确率提高到57.6%。实验表明,内窥光学相干层析技术在牙齿根裂临床诊断中具有良好的应用前景。
Abstract
The diagnosis and treatment of root fractures are difficult issues in dentistry. A three-dimensional swept source optical coherence tomography (OCT) system was constructed. Utilizing cardiovascular endoscopic imaging catheter, we imaged 46 root section samples with root fractures(width ranges from 8 μm to 283 μm). The results show that the system has a diagnostic accuracy as good as 98.3% when the width of root fractures is greater than 30 μm. The diagnostic accuracy is 36.3% for fractures smaller than 30 μm. For the 25 fracture-free samples, the accuracy is 92%. Further analysis suggests optimization of the relative position and angle between the catheter and sample sections, as well as 3D reconstruction of images. These improvements achieve 100% accuracy for above-30 μm fractures and 57.6% accuracy for below-30 μm ones. This experiment suggests a promising future for the application of endoscopic OCT in the diagnosis of dental root fractures.
孙伟, 李嘉男, 戚苈源, 朱锐, 梁宇红, 米磊. 内窥扫频光学相干层析探测牙齿根裂的研究[J]. 光学学报, 2019, 39(8): 0811002. Wei Sun, Jianan Li, Liyuan Qi, Rui Zhu, Yuhong Liang, Lei Mi. Detection of Dental Root Fractures Based on Endoscopic Swept Source Optical Coherence Tomography[J]. Acta Optica Sinica, 2019, 39(8): 0811002.