Singh Ashima, Kaur Amrita, Dhillon Arwinder, Ahuja Sahil, Vohra Harpreet
CSED Thapar Institute of Engineering and Technology Patiala India.
ECED Thapar Institute of Engineering and Technology Patiala India.
Softw Pract Exp. 2022 Apr;52(4):868-886. doi: 10.1002/spe.3011. Epub 2021 Jun 24.
Since the end of 2019, computed tomography (CT) images have been used as an important substitute for the time-consuming Reverse Transcriptase polymerase chain reaction (RT-PCR) test; a new coronavirus 2019 (COVID-19) disease has been detected and has quickly spread through many countries across the world. Medical imaging such as computed tomography provides great potential due to growing skepticism toward the sensitivity of RT-PCR as a screening tool. For this purpose, automated image segmentation is highly desired for a clinical decision aid and disease monitoring. However, there is limited publicly accessible COVID-19 image knowledge, leading to the overfitting of conventional approaches. To address this issue, the present paper focuses on data augmentation techniques to create synthetic data. Further, a framework has been proposed using WoT and traditional U-Net with EfficientNet B0 to segment the COVID Radiopedia and Medseg datasets automatically. The framework achieves an -score of 0.96, which is best among state-of-the-art methods. The performance of the proposed framework also computed using Sensitivity, Specificity, and Dice-coefficient, achieves 84.5%, 93.9%, and 65.0%, respectively. Finally, the proposed work is validated using three quality of service (QoS) parameters such as server latency, response time, and network latency which improves the performance by 8%, 7%, and 10%, respectively.
自2019年底以来,计算机断层扫描(CT)图像已被用作耗时的逆转录聚合酶链反应(RT-PCR)检测的重要替代方法;一种新型冠状病毒2019(COVID-19)疾病已被检测到,并迅速在世界许多国家传播。由于对RT-PCR作为筛查工具的敏感性越来越怀疑,计算机断层扫描等医学成像具有巨大潜力。为此,临床决策辅助和疾病监测非常需要自动图像分割。然而,公开可用的COVID-19图像知识有限,导致传统方法出现过拟合。为了解决这个问题,本文重点研究数据增强技术以创建合成数据。此外,还提出了一个框架,使用WoT和带有EfficientNet B0的传统U-Net自动分割COVID Radiopedia和Medseg数据集。该框架的Jaccard指数达到0.96,在现有方法中是最好的。所提出框架的性能还通过敏感性、特异性和骰子系数进行计算,分别达到84.5%、93.9%和65.0%。最后,使用服务器延迟、响应时间和网络延迟这三个服务质量(QoS)参数对所提出的工作进行验证,性能分别提高了8%、7%和10%。