seg2med:从人工解剖学到多式联络医疗图像的桥梁
Zeyu Yang1,2, Zhilin Chen1,2,3, Yipeng Sun4
1Computer Assisted Clinical Medicine, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
Physics in medicine and biology
|December 2, 2025
概括
分段框架从解剖学数据生成高质量的医学图像 (CT和MR). 这种以解剖学为导向的方法增强了跨模式合成,并支持医疗成像中的AI开发.
科学领域:
- 医疗成像医学成像
- 人工智能的人工智能
- 计算解剖学的计算解剖学
背景情况:
- 多模式医学图像合成对于各种临床应用至关重要.
- 在不同的模式 (CT,MR) 中生成高保真图像仍然具有挑战性.
- 解剖学信息可以作为图像合成的强大先验.
研究的目的:
- 介绍seg2med,一个模块化框架用于解剖驱动的多式联络医疗图像合成.
- 为了实现计算机断层扫描 (CT) 和磁共振 (MR) 图像的高保真生成.
- 为了利用结构化解剖学先验进行跨模式的图像转换.
主要方法:
- 来自真实患者数据的解剖图,数字幻象 (XCAT) 和合成受试者.
- 物理合成模拟器将解剖面具转换为特定模式的成像先验.
- 用解剖学先验训练的二通道条件无声扩散概率模型用于图像生成.
主要成果:
- 与真实数据相比,CT (0.94±0.02) 和MR (0.82±0.12) 的结构相似度指数 (SSIM) 达到较高.
- 在跨模式转换任务中表现强 (例如,MR→CT的SSIM为0.91±0.03).
- 合成CT图像显示了高解剖准确度,关键器官的Dice系数>0.90.
结论:
- seg2med为解剖驱动的多式联络医疗图像合成提供了一个强大的框架.
- 该系统可促进高保真度跨模式图像生成和转换.
- 结果支持seg2med对数据集增强和医学成像中的解剖意识AI开发的实用性.
相关概念视频
01:24Imaging Studies II: Ultrasonography
321
IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
321
01:19Imaging Studies VII: Vascular Imaging
292
DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
292