相关实验视频
Updated: Feb 4, 2026

10:25
Deep Learning-Based Segmentation of Cryo-Electron Tomograms
Published on: November 11, 2022
10.8K
网状网络:通过深度学习在近红外反射图像上对网状伪流体的自动像素级细分
Souvick Mukherjee1, Dylan Wu1, Leon von der Emde1
1Division of Epidemiology and Clinical Applications, National Eye Institute, National Institutes of Health, Bethesda, Maryland.
Ophthalmology science
|February 2, 2026
概括
一个深度学习模型,ReticularNet,在近红外反射率 (NIR) 图像上提供自动化像素级分级的网状伪流体 (RPD). 它的性能超过了人类分级器,为与年龄相关的黄斑变性 (AMD) 研究提供了改进的定量分析.
科学领域:
- 眼科医生 眼科 眼科
- 医疗成像医学成像
- 人工智能的人工智能
背景情况:
- 网状伪 (RPD) 是与年龄相关的黄斑变性 (AMD) 的关键生物标志物.
- 目前对RPD的分级方法通常是定性的,缺乏空间或定量分析.
- 准确的RPD评估对于了解AMD进展至关重要.
研究的目的:
- 开发和验证用于使用近红外反射 (NIR) 图像进行像素级RPD分级的深度学习模型.
- 为了能够对RPD负担进行定量和空间分析.
- 在临床实践中提高RPD评估的准确性和效率.
主要方法:
- 一个名为ReticularNet的深度学习模型 (DeepLabv3-ResNet-18) 在117只眼睛的508张NIR图像上接受了训练.
- 该模型执行了像素级别的细分和RPD病变的分级.
- 由四名眼科医生对手工分级进行评估,使用子相似系数 (DSC) 和类内相关系数 (ICC).
主要成果:
- 网红网络实现了0.36的平均DSC,明显优于个人眼科医生 (平均DSC为0.03-0.23) 和组 (P < 0.0001).
- 该模型显示了损伤数 (0.44),像素面积 (0.56) 和轮面积 (0.61) 的高ICC值.
- 与人类分级器相比,ReticularNet的分级显示出更高的一致性和准确性.
结论:
- 网红网络在NIR图像上提供自动,精确的像素级RPD分级.
- 这种深度学习方法超过了人类的评分性能,提供了增强的定量和空间分析.
- 这种模型和代码的可用性有望推动RPD研究和对AMD生物标志物的理解.
相关概念视频
Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview
1.3K
Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...
The ATR process begins by directing a beam...
1.3K
Reticular Dermis
4.7K
The papillary and reticular dermis are the two layers of the dermis. They are made of connective tissue with fibers of collagen extending from one to the other, making the border between the two somewhat indistinct. The dermal papillae extending into the epidermis belong to the papillary layer, whereas the dense collagen fiber bundles below belong to the reticular layer.
Reticular Layer
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
Reticular Layer
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
4.7K
The Sense of Self: Reflected Self-Appraisal and Social Comparison
56.1K
According to Charles Cooley, we base our image on what we think other people see (Cooley 1902). We imagine how we must appear to others, then react to this speculation. We don certain clothes, prepare our hair in a particular manner, wear makeup, use cologne, and the like—all with the notion that our presentation of ourselves is going to affect how others perceive us. We expect a certain reaction, and, if lucky, we get the one we desire and feel good about it. But more than that, Cooley...
56.1K
Functional Brain Systems: Reticular Formation
4.9K
The reticular formation is a complex network of gray and white matter located within the brainstem extending from the medulla to the midbrain.
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
4.9K
Reflection of Waves
4.6K
When a wave travels from one medium to another, it gets reflected at the boundary of the second medium. A common example of this is when a person yells at a distance from a cliff and hears the echo of their voice. The sound waves (longitudinal waves) traveling in the air are reflected from the bounding cliff. Similarly, flipping one end of a string whose other end is tied to a wall causes a pulse (transverse wave) to travel through the string, which gets reflected upon reaching the wall. In...
4.6K
Leveling Effect
1.4K
In acid-base chemistry, the leveling effect refers to the limitation imposed by the solvent on the strength of acids and bases in solution. When a base stronger than the solvent's conjugate base is used, it deprotonates the solvent until the base is entirely consumed, making it ineffective against weaker acids. Conversely, an acid stronger than the solvent's conjugate acid protonates the solvent until the acid is depleted, rendering it ineffective against weaker bases. Essentially, the...
1.4K

