인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
피인용 0
초록·키워드
Brain tumors, arising due to genetic, environmental, and immune system factors, are typically classified as primary or metastatic. Primary brain tumors originate from brain tissue and include types such as adenomas, epithelial tumors, gliomas, meningiomas, and schwannomas, while metastatic tumors spread from other body parts. The rapid and accurate diagnosis of brain tumors is crucial, and MRI is an indispensable tool in this regard due to its non-invasive nature and superior imaging capabilities. This study focuses on developing a method for the classification and segmentation of MRI images of primary brain tumors, particularly gliomas, to enhance diagnosis and treatment assessment. We propose MediAI, a Convolutional Neural Network (CNN) leveraging transfer learning with ResNet50, to classify MRI images of brain tumors. The dataset comprises 414 MRI images of primary brain tumors (86 adenomas, 84 epithelial tumors, 82 gliomas, 80 meningiomas, and 82 schwannomas) and 39 normal MR images, sourced from various public datasets. Experimental results demonstrated that MediAI achieved an impressive classification accuracy of 97.6 %. For tumor segmentation, we applied anisotropic diffusion filtering, followed by thresholding using the Otsu method, to accurately detect and delineate tumor regions, particularly in glioblastomas—highly malignant brain tumors. Tumor regions were further refined through morphological operations, and the final tumor contours were extracted and overlaid on the original images. Performance evaluation of MediAI was conducted using a confusion matrix, calculating precision, recall, and F1-score for each tumor type. Results indicated that gliomas, in particular, were c lassified with a precision of 91 %, recall of 99 %, and F1- score of 95 %. A comparison with existing studies demonstrated that MediAI outperforms previous methods, achieving the highest reported accuracy for brain tumor classification at 97.6 %. The proposed methodology not only facilitates accurate brain tumor classification but also enhances the monitoring of treatment responses by tracking changes in segmented tumor regions. Future work will focus on utilizing Radiomics to map tumor, necrotic, and edema regions for advancing diagnostic and therapeutic paradigms in glioma treatment.
본문·목차
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