Ni Kadek Jegeg Anastasya Dwipayanti

Four-Class Brain Tumor Classification Using ConvNeXt with Grad-CAM-Based Explainable

Grad-CAM visualizations confirm that the model focuses on clinically relevant tumor regions, particularly the sella turcica for pituitary tumors and distinct mass boundaries for meningioma, thereby improving interpretability and clinical trustworthiness of the AI system.