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- W4387505296 abstract "<h3>Background and Aims</h3> Successful ultrasound-guided supraclavicular block (SCB) requires the understanding of sonoanatomy and identification of the optimal view. Segmentation using a convolutional neural network (CNN) is limited in clearly determining the optimal view. The present study aims to develop a computer-aided diagnosis (CADx) system using a CNN that can determine the optimal view for complete SCB in real time. <h3>Methods</h3> Ultrasound videos were retrospectively collected from 881 patients to develop the CADx system (600 to the training and validation set and 281 to the test set). The CADx system included classification and segmentation approaches, with Residual neural network (ResNet) and U-Net, respectively, applied as backbone networks. In the classification approach, an ablation study was performed to determine the optimal architecture and improve the performance of the model. In the segmentation approach, a cascade structure, in which U-Net is connected to ResNet, was implemented. The performance of the two approaches was evaluated based on a confusion matrix. <h3>Results</h3> Using the classification approach, ResNet34 and gated recurrent units with augmentation showed the highest performance, with average accuracy 0.901, precision 0.613, recall 0.757, f1-score 0.677 and AUROC 0.936. Using the segmentation approach, U-Net combined with ResNet34 and augmentation showed poorer performance than the classification approach. <h3>Conclusions</h3> The CADx system described in this study showed high performance in determining the optimal view for SCB. This system could be expanded to include many anatomical regions and may have potential to aid clinicians in real-time setting." @default.
- W4387505296 created "2023-10-11" @default.
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- W4387505296 date "2023-09-01" @default.
- W4387505296 modified "2023-10-12" @default.
- W4387505296 title "EP153 Optimal view detection for ultrasound-guided supraclavicular block using deep learning approaches" @default.
- W4387505296 doi "https://doi.org/10.1136/rapm-2023-esra.214" @default.
- W4387505296 hasPublicationYear "2023" @default.
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