区域肺透气评估方法和系统基于来自五肺叶的阻抗传感信息
Yapeng Zhang1, Chengxin Song1, Wei He1
1State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China.
这项研究提出了一种新的生物传感器方法,用于区域肺透气评估,使用五个肺叶的阻抗测量. 这种方法可以准确地检测肺部疾病和阻塞,改进了传统方法.
科学领域:
- 生物医学工程 生物医学工程
- 肺部医学 肺部医学
- 医疗成像医学成像
背景情况:
- 区域肺透气评估对于诊断肺部疾病和评估术后康复至关重要.
- 基于生物传感器的阻抗测量为传统的压力传感器方法提供了一个非侵入性的替代方案.
- 整体胸腔阻抗不足以准确评估区域肺空气体积变化.
研究的目的:
- 开发一种新的方法来评估区域肺透气,使用来自五个肺叶的阻抗数据.
- 创建一个非线性模型,将区域阻抗与肺空气体积相关联.
- 根据阻抗变化,识别区域通风障碍.
主要方法:
- 数字模拟以确定五个肺叶的电极配置.
- 为区域阻抗和空气体积开发非线性功率函数模型.
- 分析了389个肺功能测试,以完善个人差异的计算.
- 验证使用30例病例的阻抗数据和50名重症监护患者的CT扫描.
主要成果:
- 在区域阻抗和空气体积变化之间发现了功率函数非线性关系.
- 精制的肺功能参数方程显示出高准确度 (FVC的最大相对误差为0.82%,FEV1的0.98%).
- 区域通风障碍指数显示与重症监护病例中CT扫描病变局部化一致.
结论:
- 拟议的基于阻抗的方法提供了精确的区域肺透气评估.
- 该技术有效地识别区域通风障碍,并有助于疾病检测和术后评估.
- 这些发现支持使用生物传感器阻抗测量用于先进的肺部诊断.
更多相关视频
02:09Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function
Published on: April 12, 2024
10:02Characterization of the Isolated, Ventilated, and Instrumented Mouse Lung Perfused with Pulsatile Flow
Published on: April 29, 2011
相关概念视频
Assessment of Ventilation I: Respiratory Rate
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
Assessment of Respiration
Subjective Assessment: Nurses interview the patient to gather information directly during the subjective assessment. It includes questions about the individual's medical history, medications, and symptoms, focusing on past respiratory conditions like...
Physical Assessment of the Respiratory Tract II: Palpation
Thoracic Palpation
Thoracic palpation detects tenderness, masses, lesions, respiratory excursions, and vocal fremitus. The nurse assesses...
Physical Assessment of the Respiratory Tract III: Percussion
Percussion in Respiratory Assessment
Percussion evaluates underlying tissue composition with audible and tactile vibrations,...
Pulmonary Function Tests
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
Assessment of Ventilation II: Respiratory Depth and Rhythm
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
