用深度学习+可解释AI,自动识别孟加拉国脑瘤MRI影像
Transfer Learning and Explainable AI for Brain Tumor Classification: A Study Using MRI Data from Bangladesh
- 基于VGG16等模型,结合孟加拉多院MRI数据训练分类器
- 最高准确率达99.17%,且通过XAI提升诊断可解释性
- 适合医疗资源匮乏地区,助力临床快速精准筛查
脑肿瘤无论良恶性均具健康风险,恶性者因快速增殖更具危险性。及时识别对改善患者预后至关重要,尤其在医疗基础设施薄弱的孟加拉国。人工分析MRI耗时易错,难以实现高效诊断。本研究利用孟加拉国多家医院提供的MRI数据,构建自动化脑肿瘤分类系统,采用VGG16、VGG19和ResNet50等深度学习模型,区分胶质瘤、脑膜瘤及其他脑癌。引入Grad-CAM与Grad-CAM++等可解释AI(XAI)方法,定位影响分类的关键影像区域。VGG16表现最佳,准确率达99.17%。XAI提升了模型透明度与稳定性,使其更适用于资源有限环境的临床应用。研究证明,深度学习结合XAI能有效提升医疗技术受限地区的脑肿瘤检测能力。
原文摘要 · Abstract (English)
Brain tumors, regardless of being benign or malignant, pose considerable health risks, with malignant tumors being more perilous due to their swift and uncontrolled proliferation, resulting in malignancy. Timely identification is crucial for enhancing patient outcomes, particularly in nations such as Bangladesh, where healthcare infrastructure is constrained. Manual MRI analysis is arduous and susceptible to inaccuracies, rendering it inefficient for prompt diagnosis. This research sought to tackle these problems by creating an automated brain tumor classification system utilizing MRI data obtained from many hospitals in Bangladesh. Advanced deep learning models, including VGG16, VGG19, and ResNet50, were utilized to classify glioma, meningioma, and various brain cancers. Explainable AI (XAI) methodologies, such as Grad-CAM and Grad-CAM++, were employed to improve model interpretability by emphasizing the critical areas in MRI scans that influenced the categorization. VGG16 achieved the most accuracy, attaining 99.17%. The integration of XAI enhanced the system's transparency and stability, rendering it more appropriate for clinical application in resource-limited environments such as Bangladesh. This study highlights the capability of deep learning models, in conjunction with explainable artificial intelligence (XAI), to enhance brain tumor detection and identification in areas with restricted access to advanced medical technologies.
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