The Pulmonary Air Flow analysis is part of a suite of three automated respiration routines that are included in AcqKnowledge®. The other two are Compliance and Resistance and Full Body Plethysmograph – Penh. Each routine provides breath-by-breath analysis, event marking and exporting of the values to excel.
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This is one of many ADVANCED FEATURES for the selected Application. Scroll down for hardware options.Pulmonary Airflow
The pulmonary airflow analysis uses a calibrated airflow signal from a pneumotach transducer. The analysis will work with animal or human data. The routine will operate from an existing volume signal or will create a volume signal from the flow data. The system requires a user threshold so that it can identify each respiratory cycle. The software will provide the following measures. Extract basic parameters from a calibrated airflow signal, such as would be recorded using BIOPAC’s pneumotach or airflow transducers. Measures include inspire start, expire start, tidal volume and apnea threshold.
| Name | Abbrev. | Description | Units |
|---|---|---|---|
| Cycle | Index of the exhalation cycle in the data, beginning at 1. | ||
| Time | Starting time of the exhale for the cycle. This is the location of the Exhale Start event. | Seconds | |
| Peak inspiratory flow | PIF | Maximum absolute airflow occurring in the inspiration cycle immediately preceding the exhalation cycle. This measure is recorded as an interval, so its value is always positive. | Airflow channel units |
| Peak expiratory flow | PEF | Maximum airflow during the exhalation cycle being examined. | Airflow channel units |
| Tidal volume | TV | Total volume of air inhaled during the breath. | liters |
| Minute volume | MV | Volume of air that would be inspired during a minute given the tidal volume and breathing rate of this breath. | liters / minute |
| Breaths per minute | BPM | Breathing rate for the breath. | BPM |
| Inspiration time | IT | Time interval between the start of inhale and the start of exhale in the breath. | seconds |
| Exhalation time | ET | Time interval between the start of exhale and either: start of apnea (if apnea present) start of subsequent breath (if no apnea present) | seconds |
| Total breath time | TT | Time interval between the start of inhale and the start of inhale of the following breath. This is the sum of the inhalation time, exhalation time, and apnea time. | seconds |
| Apnea time | AT | Time after end of exhalation where the airflow signal remained within the apnea threshold defined at the start of the analysis. | seconds |
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MP160 System
Wired | Pulmonary Air Flow Analysis
MP160 plus AcqKnowledge, transducer amplifiers, airflow transducer, pressure transducer, and sample accessories. Contact BIOPAC to discuss best options for pressure range and airflow accessories for your desired setup.
MP160 System
MP160 System
MRI | Pulmonary Air Flow Analysis
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MP36R System
Animal | Pulmonary Air Flow Analysis
MP36R with AcqKnowledge plus pneumotach transducer
MP160 System
Animal | Pulmonary Air Flow Analysis
MP160 plus AcqKnowledge with transducer amp and pneumotach transducer for animal
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MP160 System
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