Use of a Foot-Induced Digitally Controlled Resistance Device for Functional Magnetic Resonance Imaging Evaluation in Patients with Foot Paresis

Mark P. Ottensmeyer; Sabrina Elbach; Loukas Astrakas; Shasha Li; A. Aria Tzika

doi:10.3791/64613

Use of a Foot-Induced Digitally Controlled Resistance Device for Functional Magnetic Resonance Im...

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Neuroscience

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JoVE Journal Neuroscience

Use of a Foot-Induced Digitally Controlled Resistance Device for Functional Magnetic Resonance Imaging Evaluation in Patients with Foot Paresis

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08:55 min

July 7, 2023

DOI: 10.3791/64613-v

Mark P. Ottensmeyer^1,2, Sabrina Elbach^3,4, Loukas Astrakas^3,5, Shasha Li^2,3,4, A. Aria Tzika^2,3,4

¹Medical Device & Simulation Laboratory, Department of Radiology,Massachusetts General Hospital, ²Harvard Medical School,Harvard University, ³NMR Surgical Laboratory, Department of Surgery, Shriners Children’s Boston,Massachusetts General Hospital, ⁴Athinoula A. Martinos Center of Biomedical Imaging, Department of Radiology,Massachusetts General Hospital, ⁵Medical Physics Laboratory, Faculty of Medicine,University of Ioannina

Overview

This study investigates brain activity related to walking in chronic stroke patients to establish biomarkers for assessing rehabilitation outcomes. A novel magnetic resonance-compatible foot motion device and a protocol for its use in fMRI are introduced, aiming to justify extended tailored therapy.

Key Study Components

Area of Science

Neuroscience
Rehabilitation
Imaging

Background

Chronic stroke patients have limited access to insurance-covered rehabilitation.
Imaging can provide insights into brain activity during rehabilitation tasks.
Establishing biomarkers is crucial for measuring therapy effectiveness.

Purpose of Study

To create a method for measuring improvements in walking-related tasks post-stroke.
To justify extending rehabilitation therapy based on imaging findings.

Methods Used

Using a magnetic resonance-compatible foot motion device.
Functional magnetic resonance imaging (fMRI) to monitor brain activity.
Implementing specific protocols for rehabilitation tasks within the imaging context.

Main Results

The study introduces a new tool to analyze brain responses during walking tasks.
Insights from imaging can guide rehabilitation protocols and assess their effectiveness.

Conclusions

This approach enables enhanced measurement of rehabilitation outcomes in stroke patients.
Insights gained can support tailored therapies based on individual progress.

Frequently Asked Questions

What is the advantage of the magnetic resonance-compatible foot motion device?

The device allows for the assessment of brain activity in real-time during motor tasks without interfering with MRI imaging.

How is the rehabilitation intervention implemented in this study?

The intervention involves using the foot motion device during fMRI to perform walking-related tasks that reflect rehabilitation goals.

What types of data are obtained from this study?

The primary data involves brain activity imaging while patients engage in specific motor tasks related to walking.

How can this method be adapted for wider applications?

The methodology can be used with other motor tasks and in different patient populations to explore various rehabilitation strategies.

What are the key limitations of the proposed protocol?

Limitations may include the specific patient population or the time constraints of insurance-covered rehabilitation sessions.

Chronic stroke patients' insured rehabilitation is generally time limited. Imaging-based study of brain activity from walking-related motor tasks can lead to establishing biomarkers to measure improved outcomes and justify extending tailored therapy. A novel, magnetic resonance-compatible, variable-resistance foot motion device and a protocol for use during functional magnetic resonance imaging are presented.