Thoracic Chamber Calibration
Thoracic Chamber Calibration - Related Videos
07:43
Calibration Curves
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2023
Source: Laboratory of Dr. B. Jill Venton - University of Virginia Calibration curves are used to understand the instrumental response to an analyte and predict the concentration in an unknown sample. Generally, a set of standard samples are made at various concentrations with a range than includes the unknown of interest and the instrumental response at each concentration is recorded. For more accuracy and to understand the error, the response at each concentration can be repeated so an error...
09:47
Measurement of Endothelium-Dependent Vasorelaxation in the Mouse Thoracic Aorta Using Tensometric Small Volume Chamber Myography
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Cited by 1 •
2022
The present protocol describes the concepts and technical application of the tensometric myograph technique using a multi-chamber myograph system in the experimental ex vivo assessment of mouse aortic endothelial function.
01:11
Glassware Calibration
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2024
Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes. Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
06:57
Transaxillary First Rib Resection for Treatment of the Thoracic Outlet Syndrome
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Cited by 3 •
2020
Here, we present a protocol of the transaxillary resection of the first rib for treatment of thoracic outlet syndrome caused by compression of the brachial plexus, subclavian vein and artery.
01:15
Thoracic Aorta
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2024
The thoracic section of the aorta begins at the T5 vertebra and extends to the T12 level at the diaphragm, initially progressing through the mediastinum to the left of the spinal column. Throughout its course in the thoracic segment, the thoracic aorta emits various offshoots known collectively as visceral and parietal branches. The branches that predominantly supply blood to visceral organs are termed visceral branches and include bronchial, pericardial, esophageal, and mediastinal arteries,...
FAQs
The procedure links a sensor response to a known volume or pressure change introduced into the sealed chamber. This produces a conversion relationship that can be applied to subsequent recordings, allowing changes detected by the sensors to be interpreted as respiratory volume or related mechanical measurements rather than as unscaled signal values.
Baseline instability can make sensor readings change even when the thoracic volume has not changed, while air leakage can prevent the chamber from responding as expected to an introduced change. Checking both conditions helps separate true respiratory movement from chamber or sensor behavior, improving the validity of measurements collected during physiological or clinical studies.
Known changes provide controlled reference points for evaluating how the chamber and its sensors respond. Comparing the introduced change with the recorded response supports construction of the conversion relationship and shows whether the measurement system behaves consistently under the selected conditions. This reference-based approach is important when respiratory signals must be compared across experiments.
Reliability depends on the chamber remaining sealed, the sensors producing a stable response, and the calibration conditions being controlled. Deviations in any of these features can alter the relationship between an actual thoracic change and the recorded signal. Reviewing baseline behavior and leakage therefore helps identify measurement limitations before interpreting respiratory data.
A typical workflow establishes the sealed chamber condition, introduces a known volume or pressure change under controlled conditions, and records the corresponding sensor response. The response is then used to generate the conversion relationship. Baseline stability and air leakage are checked as part of the workflow so later measurements can be interpreted with greater confidence.
Suitability is supported when the chamber maintains its sealed condition, the baseline remains stable, and sensor responses can be related to the known changes introduced during calibration. These checks do not replace interpretation of the respiratory recording, but they provide evidence that the system is producing a usable measurement relationship for the planned study.
The calibrated system can support assessment of breathing movements, respiratory volume, and related mechanical parameters. In medicine, these measurements may contribute to studies of pulmonary function, respiratory disorders, and responses to therapeutic interventions. Calibration also strengthens comparisons between experiments by improving measurement validity and providing a consistent basis for interpreting chamber-derived respiratory data.