arXiv:2505.08517cs.CVcs.LG2025-05

用支气管镜图像和深度学习实现吸入性损伤客观分级,准确率达97.8%。

A Deep Learning-Driven Inhalation Injury Grading Assistant Using Bronchoscopy Images

  • 采用CUT数据增强与GoogLeNet模型,提升图像分类性能
  • 分类准确率97.8%,且与机械通气时长等临床指标强相关
  • 适合烧伤科医生用于辅助诊断,尤其在图像判读主观性强时

吸入性损伤的临床诊断与分级因传统评分系统(如简明损伤评分AIS)主观性强且与机械通气时间、死亡率等临床参数关联性弱而面临挑战。本研究提出一种基于深度学习的支气管镜图像分级辅助工具,以克服主观差异并提高评估一致性。通过图形变换、对比无配对翻译(CUT)及CycleGAN等数据增强技术缓解医学影像数据稀缺问题,评估了GoogLeNet与视觉变压器(ViT)两种模型在扩展数据集上的分类性能。结果表明,GoogLeNet结合CUT配置在支气管镜图像上表现最佳,分类准确率达97.8%。直方图与频谱分析显示CUT增强了图像分布变化与纹理细节;主成分分析(PCA)可视化证实其显著提升特征空间中类别可分性。Grad-CAM热图分析显示,CUT生成热图平均强度为119.6,显著高于原始数据集的98.8。该工具引入机械通气时长作为新型分级标准,提供全面诊断支持。

原文摘要 · Abstract (English)

Inhalation injuries present a challenge in clinical diagnosis and grading due to Conventional grading methods such as the Abbreviated Injury Score (AIS) being subjective and lacking robust correlation with clinical parameters like mechanical ventilation duration and patient mortality. This study introduces a novel deep learning-based diagnosis assistant tool for grading inhalation injuries using bronchoscopy images to overcome subjective variability and enhance consistency in severity assessment. Our approach leverages data augmentation techniques, including graphic transformations, Contrastive Unpaired Translation (CUT), and CycleGAN, to address the scarcity of medical imaging data. We evaluate the classification performance of two deep learning models, GoogLeNet and Vision Transformer (ViT), across a dataset significantly expanded through these augmentation methods. The results demonstrate GoogLeNet combined with CUT as the most effective configuration for grading inhalation injuries through bronchoscopy images and achieves a classification accuracy of 97.8%. The histograms and frequency analysis evaluations reveal variations caused by the augmentation CUT with distribution changes in the histogram and texture details of the frequency spectrum. PCA visualizations underscore the CUT substantially enhances class separability in the feature space. Moreover, Grad-CAM analyses provide insight into the decision-making process; mean intensity for CUT heatmaps is 119.6, which significantly exceeds 98.8 of the original datasets. Our proposed tool leverages mechanical ventilation periods as a novel grading standard, providing comprehensive diagnostic support.

深度学习医学影像烧伤分级系统

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