拉曼光谱用改进的支向量机用于区分甲状腺和副甲状腺组织
Jie Hu1, Jinyu Xing1,2, Pengfei Shao1
1Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, China.
Journal of biophotonics
|June 19, 2024
概括
这项研究引入了一种新的拉曼光谱法,与PLS-GA-SVM算法相结合,以准确区分甲状腺和副甲状腺组织,这对于安全的甲状腺手术至关重要.
科学领域:
- 生物医学光学 生物医学光学
- 手术病理学手术病理学
- 化学测量 化学测量 化学测量
背景情况:
- 甲状腺手术带有无意切除副甲状腺的风险,导致并发症.
- 甲状腺和副甲状腺组织之间的准确的手术内区分具有临床意义.
- 目前用于组织歧视的方法缺乏特异性,需要改进的诊断工具.
研究的目的:
- 开发和验证一种基于拉曼光谱的方法,用于区分甲状腺和副甲状腺组织.
- 通过使用光谱数据来提高支向量机 (SVM) 算法的分类准确性.
- 评估优化SVM算法的诊断潜力与部分最小方程 (PLS) 结合用于外科指导.
主要方法:
- 拉曼光谱检测对43名个体的组织样本进行.
- 使用部分最小平方 (PLS) 来减少数据的维度.
- 通过基因算法 (GA) 优化的改进的支持向量机 (SVM) 算法用于光谱分析和分类.
主要成果:
- 开发的PLS-GA-SVM算法显示出高的诊断准确性和可靠性.
- 该算法在区分甲状腺和副甲状腺组织方面实现了94.67%的灵敏度和94.44%的准确性.
- 对SVM算法的优化显著改善了光谱分析中的分类性能.
结论:
- 拉曼光谱与PLS-GA-SVM算法相结合,显示出在甲状腺手术期间实时,体内组织歧视的巨大潜力.
- 这种技术提供了一种可靠和准确的方法来防止意外的甲状腺切除.
- 需要进一步的临床验证,以便将这项技术纳入标准的外科实践.
相关概念视频
01:26Raman Spectroscopy Instrumentation: Overview
324
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
324
01:20Raman Spectroscopy: Overview
360
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
360
01:33Peptide Identification Using Tandem Mass Spectrometry
6.4K
Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
6.4K