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Journal : JOURNAL OF ICT APLICATIONS AND SYSTEM

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Enhanced Classification of Brain MRI Images for Tumor Detection Using Transfer Learning and Grad-CAM-Based Explainable Convolutional Neural Network (CNN) Putra, Irwandi Rizki; Zulrahmadi; Andri Swandi; Yulia; Tasya Destria Putri
Journal of ICT Applications System Vol 4 No 2 (2025): Journal of ICT Aplications and System
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56313/jictas.v4i2.454

Abstract

Accurate and explainable classification of brain Magnetic Resonance Imaging (MRI) is crucial for the early detection and treatment of brain tumors. This study introduces an enhanced deep learning framework that integrates transfer learning with Grad-CAM-based explainable Convolutional Neural Network (CNN) for tumor classification. The proposed approach utilizes a fine-tuned EfficientNet-B0 architecture with an optimized preprocessing pipeline consisting of Contrast Limited Adaptive Histogram Equalization (CLAHE), normalization, and multi-variant augmentation (rotation, flipping, and zoom). The model was trained on a publicly available brain MRI dataset comprising 3,000 images classified into four categories: glioma, meningioma, pituitary tumor, and non-tumor. Evaluation metrics include accuracy, precision, recall, F1-score, and AUC. Experimental results demonstrate that the proposed model achieves an accuracy of 94.2% and an AUC of 0.965, outperforming baseline CNN models by a significant margin. The use of Grad-CAM visualization provides interpretability by localizing tumor regions within MRI scans, thereby increasing the model’s clinical transparency. This study highlights the potential of explainable deep learning models to enhance diagnostic reliability in automated brain tumor detection systems.
Co-Authors Abdul Hakim Abdul Majid Abdul Majid Afifathur Rachmathiya Agung Waluyo AGUS AGUS SETIAWAN Akmal Aldila Septiana Alkafi ANDALIA, RIZKI Andi Abel Andri Swandi Andy Anur Rohmin Arnomo, Sasa Ani Ayu Eka Sundariyanti Boby Arya Putra Burhan, Imron Carolina Wirola Deta Chaisya Aliffah Siswoyo Chitra, Fara Cut Mutia, Cut Cut Nawalul Azka Desi Hariani Desi Sarli Dian Paramitha Asyari Dwitanta, Sucipto Edi Suprasetya Effendi Nurzal Elvina Indah Syafriani2 Eni Karsiningsih Era Mardia Sari Erwansyah, Erwansyah Eviana Sagala Fahirah Fajriah, Wina Fata Akram, Annas Fathmawati Fauziah Febry Handiny Fitri Rahmah Fitriza, Rozi Gad Datak, Gad Gusni Rahma Gusrianti Hafan Sutawardana, Jon Hafizur Rahman Hajimi Harjoni Harjoni Helny Anggraini Henuriadi Herza Hummah, Wardhatul IBNU SANI Ika Suswanti Imran, Niftahuljannah Inggri Dwi Rahesi Inung Sylvia, Ester Ira Dama Yanti Irawan Irwandi Rizki Putra Iswono Iyan Izzatul Yajidah Jusmiati Kamaruzzaman Leanada Dela Guita Lukman M. Rasyid Mailisa Manovri Yeni Marlina Meiditra, Irzon Meta Rosdiana Meyi Yanti Monika Muksin, Ika Musbaing, Musbaing Musfirah Musfirah Musfirah Nabila Muchtar Nadia, Putri Nafisah Hanim Naima Nasution, Muhammad Dharma Tua Putra Natriani Syam Naufal Qadri Syarif Nawalul Azka, Cut Nelly Mariyam Nesa Triyulita Nesa Nizwardi Azkha Novyandra Ilham Bahtera Nur Asia Nur Ilmi Nurmalia Zakaria Nurmiwiyati Nurul Alfhisyahri Nurul Amaliyah Nurul Hafipa Majid Nurul Prihastita Rizyana Nurul Qomariah Nurzal, Effendi Panny Agustia Rahayuningsih Paulina Purwasih, Rati Putri Ayu Rafika Fadillah Rahma, Gusni Rahmadhani, Miftahul Khairi Ramesia Ratnawati Rati Purwasih Rendy Rendy Restu Selvanda, Alifia Ridho Saputra, Muhammad Rischa Aulia Widiawati Rita Tuken Ritha Tuken Rostiar Sitorus Roza, Jumita Sahara, Khalipatun Salbiah Kastari Salikim Sepriono, Etda Shaliza, Fara Siti Amallia SRI RAHAYU Sulistriani Sunarsieh Susilawati Suzanni, Mulia Aria Tasya Destria Putri Tesia Septiani Thaib, Cut Masyitah Tria Ananda Putri Usman Wahid , Abdul Wahyu Kumil Laila Welly Yonathan S Pasinggi Yonathan, Yonathan S Pasinggi Yuda, Fitra Yudi Sapta Pranoto Yulia Yulia Yusuf, Yunita Zuhra Zulrahmadi