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Volume 3,Issue 9

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20 October 2025

基于深度学习的骶髂关节炎CT图像识别方法

雷 张1
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1 太原师范学院计算机科学与技术学院, 中国
MRP 2025 , 3(10), 18–20; https://doi.org/10.61369/MRP.2025100011
© 2025 by the Author. Licensee Art and Design, USA. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution -Noncommercial 4.0 International License (CC BY-NC 4.0) ( https://creativecommons.org/licenses/by-nc/4.0/ )
Abstract

CT作为诊断骶髂关节炎病发的重要方式,依赖人工判读,导致误诊和漏诊。为此,本研究提出一种融合2.5D切片输入、多尺度特征提取与融合的深度学习模型MS-2.5D-Net。首先,选取包含骶髂关节中下段关节间隙的连续5层CT切片,构建2.5D输入,在保留三维上下文关联性的同时,降低计算复杂度;其次,修改模型首层卷积适配2.5D输入,在编码阶段嵌入空洞空间金字塔池化(ASPP)模块,同步提取关节间隙的局部微结构特征与全局形态学特征;最后,引入残差特征金字塔(RFPN)跨层融合高层语义与低层细节特征,缓解深层网络梯度消失问题。在29例样本数据集上的实验表明,该模型的敏感度为91.3%,特异性为95.2%,能有效应对骶髂关节炎判别难题,为临床辅助诊断提供了可靠的技术方案。

Keywords
骶髂关节炎
骨盆CT
2.5D切片
多尺度特征融合
深度学习
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