The biological behavior and treatment response of meningiomas depend on their grade, making an accurate diagnosis essential for treatment planning and prognosis assessment. We observed that the weighted fusion of spatial-frequency domain features significantly influences meningioma classification performance. Notably, the contribution of specific frequency bands obtained by discrete wavelet transform varies considerably across different images. A feature fusion architecture with adaptive weights of different frequency band information and spatial domain information is proposed for few-shot meningioma learning. To verify the effectiveness of the proposed method, a new MRI dataset of meningiomas is introduced. The experimental results demonstrate the superiority of the proposed method compared with existing state-of-the-art methods in three datasets. The code will be available at: https://github.com/ICL-SUST/AMSF-Net
@article{arxiv.2602.13335,
title = {Meningioma Analysis and Diagnosis using Limited Labeled Samples},
author = {Jiamiao Lu and Wei Wu and Ke Gao and Ping Mao and Weichuan Zhang and Tuo Wang and Lingkun Ma and Jiapan Guo and Zanyi Wu and Yuqing Hu and Changming Sun},
journal= {arXiv preprint arXiv:2602.13335},
year = {2026}
}