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arXiv 2403.05141cs.CV

Med3DInsight:借助2D多模态大语言模型增强3D医学图像理解

Med3DInsight: Enhancing 3D Medical Image Understanding with 2D Multi-Modal Large Language Models

Shanghai Jiao Tong University(上海交通大学)

Qiuhui Chen, Huping Ye, Yi Hong

AI总结:

针对现有3D医学图像理解方法语义能力弱、训练数据需求大的问题,提出Med3DInsight预训练框架,通过PSAT模块桥接3D编码器与2D MLLM,在多数据集多任务上实现SOTA且易集成。

摘要:

理解3D医学图像体是医学领域的一项关键任务。然而,现有的基于3D卷积和Transformer的方法对图像体的语义理解能力有限,且需要大量图像体数据用于训练。多模态大语言模型(MLLMs)的最新进展为借助文本描述理解图像提供了一种颇具前景的新途径,但当前大多数MLLM都是为2D自然图像设计的。为借助2D MLLM增强3D医学图像理解能力,我们提出了一种名为Med3DInsight的新型预训练框架,该框架将现有3D图像编码器与2D MLLM相结合,并通过专门设计的平面切片感知Transformer(Plane-Slice-Aware Transformer, PSAT)模块实现二者的桥接。大量实验表明,我们的方法在两项下游分割和分类任务上达到了SOTA(state-of-the-art,当前最优)性能,涉及包含CT和MRI模态的三个公开数据集,并与十余个基线模型进行了对比。Med3DInsight可轻松集成到任何现有的3D医学图像理解网络中,并能大幅提升其性能。

英文摘要:

Understanding 3D medical image volumes is a critical task in the medical domain. However, existing 3D convolution and transformer-based methods have limited semantic understanding of an image volume and also need a large set of volumes for training. Recent advances in multi-modal large language models (MLLMs) provide a new and promising way to understand images with the help of text descriptions. However, most current MLLMs are designed for 2D natural images. To enhance the 3D medical image understanding with 2D MLLMs, we propose a novel pre-training framework called Med3DInsight, which marries existing 3D image encoders with 2D MLLMs and bridges them via a designed Plane-Slice-Aware Transformer (PSAT) module. Extensive experiments demonstrate our SOTA performance on two downstream segmentation and classification tasks, including three public datasets with CT and MRI modalities and comparison to more than ten baselines. Med3DInsight can be easily integrated into any current 3D medical image understanding network and improves its performance by a good margin.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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