可解释的深度学习和TMJ障碍的生物力学建模 形态风险因素
Shuchun Sun1, Pei Xu2, Nathan Buchweitz1
1Clemson-MUSC Joint Bioengineering Program, Department of Bioengineering and.
JCI insight
|July 11, 2024
概括
这项研究结合了深度学习和生物机械建模,揭示了关节 (TMJ) 疾病的原因. 研究结果揭示了特定的面部特征如何通过改变关节力学和细胞功能来增加关节障碍风险.
科学领域:
- 生物医学工程 生物医学工程
- 计算生物学 计算生物学
- 肌肉骨研究 研究
背景情况:
- 了解像关节 (TMJ) 关节疾病这样的多因素肌肉骨疾病对于有效的预防和治疗至关重要.
- 深度学习擅长识别风险因素,但缺乏用于临床应用的机制性见解.
- 多尺度生物机械建模在生理学背景下提供了机械学的理解.
研究的目的:
- 开发和应用一种混合方法,整合3D可解释深度学习和多尺度生物机械建模.
- 通过识别风险因素及其与关节生物力学的机制联系,调查关节疾病的病因.
- 提高深度学习在病因学研究中的临床适用性.
主要方法:
- 使用3D卷积神经网络,确定与关节疾病相关的患者特异性形态特征.
- 可解释的深度学习输出被用来驱动多尺度生物力学模型.
- 生物机械模型模拟了关节力,组织营养物质的可用性,细胞ATP生产和磁盘应变能量密度.
主要成果:
- 深度学习模型准确地识别了基于状骨,骨和下巴形态的TMJ障碍患者.
- 小下大小和平坦的状形状被确定为关节疾病的危险因素.
- 这些形态因素在机理上与增加的关节力,降低的营养素/ATP水平和增加的磁盘应变能量密度有关.
结论:
- 混合方法成功地将深度学习的风险识别与生物力学建模的机械解释相结合.
- 这种整合解决了深度学习对病因学研究的临床翻译信心的局限性.
- 该方法通过结合必要的生物力学背景,提高了分析较小临床数据集的可访问性.
相关概念视频
Three-Dimensional Force System:Problem Solving
1.5K
A three-dimensional force system refers to a scenario in which three forces act simultaneously in three different directions. This type of problem is commonly encountered in physics and engineering, where it is necessary to calculate the resultant force on the system, which can then be used to predict or analyze the behavior of the object or structure under consideration.
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
1.5K
Multicompartment Models: Overview
716
Multicompartment models are mathematical constructs that depict how drugs are distributed and eliminated within the body. They segment the body into several compartments, symbolizing various physiological or anatomical areas connected through drug transfer processes such as absorption, metabolism, distribution, and elimination.
These models offer a more comprehensive representation of drug behavior in the body than one-compartment models. They accommodate the complexity of drug distribution,...
These models offer a more comprehensive representation of drug behavior in the body than one-compartment models. They accommodate the complexity of drug distribution,...
716
Mechanistic Models: Overview of Compartment Models
589
Mechanistic models, a category encompassing both physiological and compartmental modeling, differ from empirical models' approaches to incorporating known factors about the systems being modeled. Empirical models describe data with minimal assumptions, while mechanistic models aim to provide a robust description of available data by specifying assumptions and integrating known factors about the system. Compartmental analysis is a key example of a mechanistic model in pharmacokinetics and...
589
Mechanistic Models: Compartment Models in Individual and Population Analysis
360
Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
360
Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving
442
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
442
Pharmacodynamic Models: Overview
163
Pharmacodynamic (PD) responses describe the interaction between a drug and its biological target, culminating in a physiological effect. These responses can be classified into different types: continuous variables, such as blood glucose levels; categorical outcomes, like survival rates; and time-to-event metrics, such as disease progression. Understanding and modeling PD responses are critical for optimizing drug efficacy and safety.PD models describe the relationship between drug concentration...
163


