用新的标签策略对小型中风病变进行细分
Liang Shang1, Zhengyang Lou1, Andrew L Alexander1
1University of Wisconsin-Madison, Madison, WI 53706, USA.
概括
细分小中风病变的新方法提高了准确性. 多尺寸标记 (MSL) 和基于距离的标记 (DBL) 提高了脑中风损伤细分中的深度神经网络性能,有助于诊断.
科学领域:
- 医疗成像医学成像
- 人工智能的人工智能
- 神经学 神经学
背景情况:
- 深度神经网络 (DNN) 在中风病变细分方面表现出色.
- 精确细分小病变对于中风诊断至关重要,但仍然具有挑战性.
- 现有的DNN在精确划分最小的中风损伤方面扎.
研究的目的:
- 引入新的方法来改善小中风病变细分.
- 为了提高DNN在中风后识别和概述小脑病变的准确性.
- 为各种神经网络架构提供可适应的技术.
主要方法:
- 通过根据体积对病变口罩进行分类,提出多尺寸标签 (MSL).
- 引入基于距离的标签 (DBL) 以强调病变边界.
- 将MSL和DBL集成到现有的DNN框架中进行评估.
主要成果:
- 一组MSL和DBL在回忆,F1和子得分方面表现优于2022年MICCAI ATLAS挑战赛的获胜者.
- 在小损伤子集和整个数据集上,MSL和DBL实现了优越或相同的性能.
- 一个单一的MSL模型在小损伤子集上超越了先前的集体方法,改善了F1和Dice的得分.
结论:
- MSL和DBL是增强小中风病变细分的有效策略.
- 这些方法比现有技术提供了显著的改进,特别是在最小的病变.
- 提出的方法很容易整合,并提高了AI在中风护理中的诊断能力.
相关概念视频
Regulation of Stroke Volume
5.2K
The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
5.2K
Persuasion Strategies
43.5K
Researchers have tested many persuasion strategies, including the foot-in-the door and the door-in-the-face techniques, in a variety of contexts. Ultimately, the principles are effective in selling products and changing people’s attitude, ideas, and behaviors (Cialdini & Goldstein, 2004).
43.5K
Coping Strategies: Problem Focused
524
Coping strategies are methods people use to manage, tolerate, or reduce the effects of stressors. These strategies involve both behavioral and psychological actions to handle stressful situations. One common approach is problem-focused coping, which aims to change or eliminate the source of stress rather than merely addressing its consequences. This method involves taking direct action to resolve the issue causing stress.
For example, consider a student who struggles to understand their...
For example, consider a student who struggles to understand their...
524
Strategies of Self-Presentation II: Self-Verification
196
Self-verification is a fundamental psychological drive wherein individuals seek affirmation of their self-concept from others, striving for consistency between their internal self-view and external perceptions. This drive operates even when the self-concept is negative, influencing interpersonal behavior and feedback preferences in complex and often counterintuitive ways. Unlike the self-enhancement motive, which seeks positive evaluations, self-verification prioritizes coherence and...
196
Labeling Emotion
740
Emotional labeling is a cognitive process that involves identifying and naming one's emotions, such as anger, fear, happiness, or sadness. It allows individuals to recognize and express their internal emotional states, a critical aspect of emotional regulation and communication. Labeling emotions requires more than mere recognition; it also involves drawing upon memory and contextual cues to understand the current situation and apply a corresponding emotional label. For instance, feeling...
740
Cardiac Output and Stroke Volume
4.9K
Cardiac output (CO) is an integral aspect of human physiology, reflecting the heart's efficiency and responsiveness to the body's needs. It represents the volume of blood that the left or right ventricle ejects into the aorta or pulmonary trunk each minute. The CO is calculated by multiplying the heart rate (HR)—the number of heartbeats per minute—by the stroke volume (SV)—the amount of blood pumped out with each heartbeat.
In an average resting adult male, the typical cardiac...
In an average resting adult male, the typical cardiac...
4.9K


