Related Experiment Video
Updated: Feb 15, 2026
07:27
Simplified Whole Body Plethysmography to Characterize Lung Function During Respiratory Melioidosis
Published on: February 24, 2023
3.9K
High-resolution respiratory inductive plethysmography in rats: validation in anesthetized conditions
T Flénet1, J Fontecave-Jallon1, P-Y Guméry1
1Université Grenoble Alpes, CNRS, TIMC-IMAG Laboratory UMR 5525, PRETA team, F-38041 Grenoble, France.
Physiological Measurement
|March 17, 2017
Summary
A new non-invasive respiratory inductive plethysmography (RIP) system effectively monitors rodent breathing. This method shows high accuracy and correlation compared to invasive techniques, offering a promising alternative for physiological studies.
Area of Science:
- Physiology
- Pharmacology
- Biomedical Engineering
Background:
- Rodent respiratory monitoring is crucial for physiological and pharmacological studies.
- Current methods like intubation and whole-body plethysmography are invasive, costly, or restrictive.
- Respiratory inductive plethysmography (RIP) is non-invasive but not yet validated in small rodents.
Purpose of the Study:
- To develop and evaluate a rodent-specific RIP apparatus for non-invasive respiratory monitoring in rats.
- To assess the feasibility of implementing RIP technology in small animal models.
Main Methods:
- A novel rodent-specific RIP system was designed and tested.
- The RIP system's performance was compared against a pneumotachograph (PNT), the invasive gold standard.
- Experiments involved anesthetized rats under artificial ventilation across a range of tidal volumes.
Main Results:
- Calibrated RIP signals closely matched PNT values, with a 93% Euclidean distance fit.
- Bland and Altman analysis showed RIP-PNT differences below 20%.
- Highly significant correlation (R=0.98, p<0.001) was observed between RIP and PNT measurements.
Conclusions:
- The developed RIP system is suitable for measuring tidal volumes and airflow in anesthetized rats.
- This non-invasive technique offers a viable alternative to existing methods.
- Further validation in diverse physiological conditions is warranted.
Related Concept Videos
01:16The Respiratory System
89.8K
The respiratory system is comprised of the organs that enable breathing. Air enters the nostrils and mouth, followed by the pharynx (throat) and larynx (voice box), which lead to the trachea (windpipe). In the thoracic cavity, the trachea splits into two bronchi that allow air to enter the lungs. The bronchi split into progressively smaller bronchioles and terminate in small groups of tiny sacs in the lungs called alveoli, where gas exchange occurs.
89.8K
01:29Reliability and Validity
14.1K
Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
14.1K
01:31Anatomy of Respiratory System II: Lower Respiratory Tract
4.1K
The lower respiratory tract is anatomically composed of several vital structures, including the larynx, trachea, bronchial tree, alveoli, lungs, and pleurae. Each component has a specific function, and all are intricately connected to ensure efficient respiration.
The Larynx
It is located between the pharynx and the trachea, acts as a passageway for air, and hosts several critical structures, such as the epiglottis, vocal cords, and glottis. The epiglottis acts as a gateway, guiding food to the...
The Larynx
It is located between the pharynx and the trachea, acts as a passageway for air, and hosts several critical structures, such as the epiglottis, vocal cords, and glottis. The epiglottis acts as a gateway, guiding food to the...
4.1K
01:13Local Anesthetics: Pharmacokinetics
1.3K
The potency and duration of action of local anesthetics (LAs) are determined by their pharmacokinetics. Pharmacokinetics describes how LAs are absorbed, distributed, metabolized, and eliminated from the body. When administered to the vascular tissues, LAs are quickly absorbed and enter the systemic circulation, reducing their localized effects. Adding vasoconstrictors such as epinephrine to LAs reduces their absorption into the systemic circulation, making them clinically effective. The...
1.3K
01:20Inhalational Anesthetics: Overview
1.2K
Inhalation anesthetics are drugs that induce general anesthesia upon inhalation. They work by increasing the sensitivity of GABAA receptors or inhibiting NMDA receptors, leading to a decrease in central nervous system activity. The depth of anesthesia can be rapidly adjusted by changing the concentration of the inhaled gas. Some common examples of inhalational anesthetics include volatile liquids like isoflurane, desflurane, sevoflurane and gases like xenon and nitrous oxide. Isoflurane, a...
1.2K
01:15Data Validation
2.4K
Method validation is a crucial process in analytical chemistry designed to confirm that a given method consistently produces reliable and high-quality results. This process is essential when a method is applied to different sample matrices or when procedural modifications are made, ensuring that the results meet acceptable standards across various applications.
Key parameters for method validation include:
Key parameters for method validation include:
2.4K