BIOPAC® Systems, Inc. Logo

NIBP100A single pulse data analysis

The NIBP100A has a data output mode that outputs the blood pressure reading to AcqKnowledge only at the actual time of a successful reading. This results in a data record that contains a single beat approximately every 10-15 sec and a straight line in-between. The following description explains how to obtain continuous systolic and diastolic blood pressure channels from this raw blood pressure data.
The following image shows blood pressure data collected from an NIBP100A in this mode.
Raw NIBP100A data
The arrow in the following picture corresponds to the diastolic blood pressure level. Therefore, it is sufficient to take the minimum of the blood pressure waveform 1 sec after the maximum (which is the systolic pressure) in order to obtain the diastolic pressure reading.
Single NIBP100A beat
Use the measurement boxes to measure two separate channels for systolic and diastolic pressure. Set the measurement boxes so that they contain only two measurements: Max and Min, both from the blood pressure channel (in this screenshot channel 3 is the blood pressure channel):

The Find cycle/Peak feature will identify each cusycle and measure the max and min values. Go to Analysis->Find Cycle/Peak and enter the following settings (Set the correct channel number and the threshold. The threshold level should be less than the systolic blood pressure and higher than the diastolic blood pressure) and click Find all cycles.
Cycle detector - Setup
Cycle detector selection
Cycle detector output
Two new channels will be output. The max channel gives you systolic blood pressure, the min channel diastolic. (Select the Save measurements to Excel to paste the measurements into Excel. If exporting to Excel, set up a time measurement box to export the time of each measurement).
The file should look like this (blood pressure channel on top, max and min below):
Data step 1
Use Analysis->Find Rate to obtain two continuous waveforms with systolic and diastolic blood pressure.
Select the Max waveform (make sure no data is highlighted) and go to Analysis->Find Rate. Set it up as shown in the screenshot below:
Find rate
Repeat the last step for the Min waveform.
The following screen show shows the new channels…rename them from max/min to systolic and diastolic.
Data step 2

Associated Applications

Associated Application Notes

Spotlight On
wireless EEG ECG telemetry for rodents

Epoch Wireless ECG Systems

Long-term wireless ECG system Wireless ECG implantable transmitters for mice or rats Additional transmitters available—just move the receiver tray to record from multiple home cages The Epoch ECG Transmitter amplifies and transmits high-fidelity ECG data. Implants are small enough to be implanted into mice as young as P18. To record, simply place the animal’s cage on top of the […]

View All
Latest News

New Citations | Psychophysiology, Chewing Study, Pulse Wave Velocity

Recent studies in Psychophysiology, EMG, ECG and PPG measurement utilizing BIOPAC software and hardware: Fight or Flight (Reflex Response Time) “Fight or flight” is a physiological response that occurs due to a perceived threat to survival. It can physiologically be observed through an increase in heart rate, respiratory rate, blood pressure, oxygen availability, and other mechanisms. In […]

New Citations | Heart Rate & Heart Rate Variability, Wingate Anaerobic Test, and Neuroscience of Music

HRV, EMG, and EEG studies using BIOPAC hardware and software include: DON’T STRESS Humans encounter various stressful situations everyday at work, home, and school. Such stress when experienced at high degrees and/or for a long duration of time could lead to cardiovascular diseases, cognitive dysfunctions, and psychological disorders. This study examined the validity of a novel physiological measurement […]

Read All
Request a Demonstration
Request a Demonstration