BIOPAC® Systems, Inc. Logo

Magnetic Resonance Imaging with BIOPAC Equipment

Record Physiological Signals During MRI

Options for human and small animal MRI life science research

Advanced line of MR Safe and MR Conditional solutions

AcqKnowledge MRI gating data ECG and respiration

High-Quality Data for Human & Animal Protocols

BIOPAC® offers a series of amplifiers, electrodes, electrode leads, transducers, and stimulus options for safe data acquisition of physiological signals in the MRI environment. Specialized cable systems provide isolated and RF filtered interfacing between the subject/chamber panel and the control room.

Record physiological signals such as: Electrocardiogram (ECG), Electromyogram (EMG), Electroculogram (EOG), Electrogastrogram (EGG), Temperature, Respiration, Electrodermal Activity (EDA, EDR, SCL, SCR or GSR), Pulse, Hand Grip Strength (Dynamometry), CO2 and O2 Gas Analysis, Pulse Oximeter (SpO2), Finger Twitch, and a variety of pressure based signals. Microvascular blood perfusion can be measured with the Laser Doppler Flow System. Electrical stimulation is also available for constant current and constant voltage electrical stimulation. Physiological signals in the MRI can be used for psychophysiological studies, neuromarketing, subject monitoring, and more.

See More...


Complete triggering and gating solutions for small animal and human subjects

MRI Smart Amplifiers

Advanced signal processing circuitry removes spurious MRI artifact from the source physiological data

Full line of specialized equipment

Transducers, cables/filters, amplifiers, electrodes & other accessories

Application Starter Hardware  

Hardware Packages   |   Magnetic Resonance Imaging with BIOPAC Equipment

Hardware Bundles are complete solutions for the specified application. Choose your preferred platform and bundle, then click "Request Pricing" to request an estimate, add/remove items, or complete purchase. If you have questions about specific items, click through to the product web page for details and specifications, or contact your Local Sales contact.




MRI Signal Conditioning—Automated Routines

MRI, Signal Conditioning, Routines, Analysis

Run the Magnetic Resonance Imaging routines for automated signal conditioning to focus on the signal of interest by removing MR gradient and other interference. Use individual filter options from the Transform and Analysis menus to further refine data cleaning parameters.

AcqKnowledge Filters for Additional Signal Clean-up

When subjects are monitored in the fMRI, imaging sequence types impact the physiological signal recording.

  • In the case of Blood Oxygen Level Dependent (BOLD) imaging, T1 is unaffected by blood oxygen levels but T2 is greatly affected by blood oxygen levels. Impact varies based on the type of Blood Oxygen Level Dependent Effect (BOLD) Imaging, including
    • Echo Planar Imaging (EPI): EPI is a magnetic resonance imaging (MRI) method valuable to neuroscience. EPI is employed for nearly all functional MRI (fMRI) and diffusion imaging of neural fiber connections in the brain.
    • Multiband (MB) Excitation: MB excitation, during EPI, allows for the simultaneous acquisition of multiple slices during imaging. MB factor 6, means that six slices are acquired in the same time that one slice would be acquired during regular EPI. This technique is helpful for fMRI studies to improve the statistical definition of neural fiber connections and for diffusion-based imaging neural fiber tractography, to visualize structural connections in the brain.
      • Axial EPI MB scans generate significant harmonics in the recorded physiological data at the point of scanning commencement; Coronal EPI MB scans generate significantly less harmonic energy.
    • Multiplexed-EPI (M-EPI) Sequencing: M-EPI sequencing combines two forms of image acquisition multiplexing: time-based multiplexing (T) and space-based multiplexing (S) with Multiband RF pulses to acquire (T x S) images in an EPI sequence instead of just one image. M-EPI provides a substantial increase in time resolution and higher statistical power for fMRI, resulting in improved image resolution.

In these cases, the resulting scanning artifact can’t be removed by the MRI Smart Amplifiers because it falls close enough to the range and type of the physiological signal of interest. However, the data can be cleaned in AcqKnowledge by employing a comb-band-stop (CBS) filter to remove the offending harmonics, in post-processing or real time. The data will be well-scrubbed of artifact but some non-harmonic-related artifact presence will remain; this artifact is likely related to non-homogeneous qualities associated with the subject’s body and switching magnetic fields. Request Application Note 283 to learn more about fMRI Imaging Sequencing Effects upon Physiological Measurement.

Advanced Features Spotlight

AcqKnowledge MRI gating data ECG and respiration

MRI Trigger / R-wave Synch

Use the DTU100 Digital Trigger Unit to trigger an MRI System with the occurrence of the R-wave present in ECG, respiratory data or blood pressure for More...

Remote Monitor - IP-Based Network Display

Simplified view of subject data on another computer or mobile device. Remote Monitoring provides a simple browser interface, from which acquisitions can be started, stopped More...

MRI Small Animal Monitoring

The BIOPAC MP160 System supports small animal MRI monitoring system for ECG, Heart Rate, EMG, blood pressure, respiration, temperature, pulse oximetry, CO2 and O2 gas More...

MRI Airflow

The TSD117-MRI is used outside the bore in the MRI Chamber Room and AFT7-L tubing is connected to reach the subject. Use coupler AFT11D to add More...

MRI ECG Recording

Record ECG, heart rate, and R-R interval from a subject inside a functional MRI with a BIOPAC MP150 data acquisition system. The AcqKnowledge software (included More...


Dual-Channel MRI Gating

MRI - Cleaning Data - EMG example

BIOPAC NIBP-MRI: How to Apply Sensor to Brachial Artery

Slew Rate Limiter in AcqKnowledge


Application Notes

Knowledge Base

Spotlight On

Eye Tracking Glasses ETV

The ETVision (ETV) wearable unit resembles an eyeglasses frame that can be worn by itself or over the participant’s prescription eyeglasses. It contains miniature “eye cameras” that view each eye and a “scene camera” that views the scene in front of the participant, and a microphone. An optional visor can be mounted to the front […]

View All
Latest News

New Citations | Predicting Indicators of Driver Fatigue with Eye Tracking Technology

Correlating Driver Fatigue and Altitude Change In ongoing efforts to make our roads ever safer, frequent studies are published researching driver fatigue. In this study, researchers used wearable Eye Tracking technology and recorded eye movement, blink rate, and other physiological signals with the BIOPAC MP160 Data Acquisition Unit. The purpose of the study was to […]

Electrocardiography Guide Now Available

BIOPAC’s just released Introductory ECG Guide addresses fundamental to advanced concerns to optimize electrocardiography data recording and analysis. Topics include: ECG Complex; Electrical and Mechanical Sequence of a Heartbeat; Systole and Diastole; Configurations for Lead I, Lead II, Lead III, 6-lead ECG, 12-lead ECG, precordial leads; Ventricular Late Potentials (VLPs); ECG Measurement Tools; Automated Analysis Routines […]

Read All
Request a Demonstration
Request a Demonstration