在3DMRI中使用稀疏的单点注释来进行弱监督的细分,用于三维MRI中动脉的光和壁
Jonghun Kim1, Inye Na1, Junmo Kwon1
1Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea; Center for Neuroscience Imaging Research, Institute for Basic Science, Suwon, South Korea.
Computer methods and programs in biomedicine
|June 24, 2025
概括
这项研究引入了一种新的弱监督方法,用于在3DMRI扫描上使用单点注释来细分动脉,从而显著减少动脉样硬化治疗规划中的手工劳动.
科学领域:
- 医疗成像医学成像
- 人工智能在医学中的应用
- 心血管研究研究心血管研究
背景情况:
- 动脉细分对于动脉样硬化治疗规划至关重要.
- 手动细分是劳动密集型和耗时的.
- 需要更有效的细分方法.
研究的目的:
- 开发一种弱监督的分段方法,用于动脉.
- 为了减少手动注释在动脉细分的努力.
- 为了使动脉样硬化的有效治疗规划.
主要方法:
- 使用最小注释 (每片单点) 的弱监督细分方法.
- 整合了三个损失函数:中心点定位,使用空间图的半径约束和相邻切片相似性.
- 通过调整半径参数来分割光线和墙壁.
主要成果:
- 拟议的方法在COSMOS2022数据集 (DSClu 0.821,DSCwa 0.841) 上实现了与完全监督的方法可比的性能.
- 类似的结果在独立的哈佛数据集上得到了验证.
- 有效细分内动脉,外动脉和常见的动脉.
结论:
- 开发的方法为动脉细分提供了高效和有效的解决方案.
- 这种方法,利用单点注释,可以帮助管理动脉样硬化.
- 该代码是公开可用的,用于研究.
相关概念视频
01:24Magnetic Resonance Imaging
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
01:21Imaging Studies for Cardiovascular System IV: CMRI
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...