P-Mamba: Marrying Perona Malik Diffusion with Mamba for Efficient Pediatric Echocardiographic Left Ventricular Segmentation
作者: Zi Ye, Tianxiang Chen, Fangyijie Wang, Hanwei Zhang, Lijun Zhang
分类: cs.CV
发布日期: 2024-02-13 (更新: 2024-06-24)
💡 一句话要点
提出P-Mamba以解决儿科超声心动图左心室分割效率低下问题
🎯 匹配领域: 支柱二:RL算法与架构 (RL & Architecture)
关键词: 超声心动图 左心室分割 混合专家 Perona-Malik扩散 计算机视觉 儿科心脏病学 深度学习
📋 核心要点
- 现有的超声心动图分割方法效率低,容易受到背景噪声的干扰,导致分割不准确。
- P-Mamba模型结合了混合专家概念和ViM层,旨在提高左心室的分割效率和准确性。
- 在多个数据集上的实验表明,P-Mamba在准确性和效率上优于现有的模型,取得了最先进的结果。
📝 摘要(中文)
在儿科心脏病学中,通过超声心动图准确及时地评估心脏功能至关重要,因为这可以决定是否需要紧急干预。然而,超声心动图常常受到模糊性和背景噪声干扰,导致分割准确性下降。现有方法效率低下,容易错误分割背景噪声区域。为了解决这些问题,我们提出了P-Mamba,结合了混合专家(MoE)概念以实现高效的左心室分割。我们利用ViM层增强模型的计算和内存效率,并在基于DWT的Perona-Malik扩散(PMD)模块中设计了PMD模块以抑制噪声,同时保留左心室的局部形状线索。通过在两个儿科超声数据集和一个通用超声数据集上的实验,我们实现了最先进的结果。
🔬 方法详解
问题定义:本论文旨在解决儿科超声心动图中左心室分割的效率低下和背景噪声干扰问题。现有方法在处理噪声时容易错误分割,影响临床决策。
核心思路:P-Mamba模型通过结合混合专家(MoE)和ViM层,增强了计算和内存效率,同时利用DWT-based Perona-Malik扩散模块抑制噪声,保留重要的局部特征。
技术框架:整体架构包括PMD模块用于噪声抑制和局部特征提取,结合Mamba的高效设计以建模全局依赖关系。模型通过分层结构实现高效的特征提取与融合。
关键创新:P-Mamba的创新在于将PMD的噪声抑制能力与Mamba的高效设计相结合,显著提高了分割的准确性和效率,与传统方法相比具有本质上的区别。
关键设计:模型采用了特定的损失函数以优化分割效果,并在网络结构中引入了ViM层以提升计算效率,确保在处理复杂背景时仍能保持高准确性。
🖼️ 关键图片
📊 实验亮点
在多个数据集上的实验结果显示,P-Mamba模型在左心室分割任务中取得了最先进的性能,相较于现有的视觉变换器模型,提升了准确性和效率,具体性能数据未详述,但整体表现显著优于传统方法。
🎯 应用场景
该研究在儿科心脏病学领域具有重要应用价值,能够为临床医生提供更为准确和高效的心脏功能评估工具,帮助及时做出医疗决策。未来,该模型也可扩展到其他医学影像分割任务中,提升整体医疗服务质量。
📄 摘要(原文)
In pediatric cardiology, the accurate and immediate assessment of cardiac function through echocardiography is crucial since it can determine whether urgent intervention is required in many emergencies. However, echocardiography is characterized by ambiguity and heavy background noise interference, causing more difficulty in accurate segmentation. Present methods lack efficiency and are prone to mistakenly segmenting some background noise areas, such as the left ventricular area, due to noise disturbance. To address these issues, we introduce P-Mamba, which integrates the Mixture of Experts (MoE) concept for efficient pediatric echocardiographic left ventricular segmentation. Specifically, we utilize the recently proposed ViM layers from the vision mamba to enhance our model's computational and memory efficiency while modeling global dependencies.In the DWT-based Perona-Malik Diffusion (PMD) Block, we devise a PMD Block for noise suppression while preserving the left ventricle's local shape cues. Consequently, our proposed P-Mamba innovatively combines the PMD's noise suppression and local feature extraction capabilities with Mamba's efficient design for global dependency modeling. We conducted segmentation experiments on two pediatric ultrasound datasets and a general ultrasound dataset, namely Echonet-dynamic, and achieved state-of-the-art (SOTA) results. Leveraging the strengths of the P-Mamba block, our model demonstrates superior accuracy and efficiency compared to established models, including vision transformers with quadratic and linear computational complexity.