P16071: MRI-Compatible EEG Cap
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Problem Definition

Table of Contents

Team Vision for Problem Definition Phase

The Team plans to:

The Team has accomplished:

Project Summary

The simultaneous collection of electroencephalogram (EEG) and functional magnetic resonance imaging (fMRI) is of interest in research and diagnostics, as it could take advantage of both the high spatial resolution of MRI and the high temporal resolution of EEG. The initial motivation behind the development of an fMRI-compatible EEG cap was born from the desire to monitor blood flow changes in the brain during epileptic seizures, which are only identifiable by EEG data collection. However, correlating EEG signals to cerebral blood flow is of interest in a broader research scope as well, as this correlation may aid in understanding brain function and aging. The powerful magnets and magnetic field gradients in an MRI scanner prohibit the use of standard EEG caps, which are generally made from insufficiently shielded metals that generate heat and introduce data artifacts in the scanner. Some MRI-compatible EEG caps exist on the market, but these products suffer from several shortcomings. Chief among these concerns are their high cost, time-consuming setup, and lack of adjustability, which make these systems impractical for use in most research settings.

The end goal of our project is to produce a functional prototype MRI-compatible EEG system to enable novel RIT faculty research. Importantly, the system must be inexpensive to manufacture and operate; therefore, it must be produced from low-cost materials, universally fitting to avoid the need for multiple cap sizes, durable for frequent use and travel, and easy to apply and adjust given the high cost of time in an MRI. Furthermore, the device must be safe and functional when placed in magnetic fields of strength in excess of 3T, as well as capable of producing reliable EEG data for at least three hours of continuous operation.

Link to 1-page project summary.

Communication Plan

  1. Communication with Team
    • Team plans to meet every Wednesday from 4-6 pm to work on deliverables and provide updates to the rest of the team
    • Individual progress will be tracked via a live Gantt Chart
    • Texting is the preferred method of communication to inform team of meeting absences
    • Emails are preferred to alert members of document completion
    • Research findings are communicated via a Google doc
  2. Communication with Customer
    • Tri-weekly meetings will be held at the end of each phase to inform customer of progress
    • Email and in-person communication will be used for informal updates and clarifications
    • Public relations team member will serve as the primary mode of contact

Use Cases

The following is the use case scenario which will provide an example to implement requirements and set limits.
Research Use Case

Research Use Case

Constraints

The following are a list of constraints, limitations that set the boundaries of the design.
Constraints

Constraints

Customer Requirements (Needs)

Customer Requirements

Customer Requirements

The Customer and Engineering Requirements can be found here.

The Customer Interview Questions and Answers can be found here.

Engineering Requirements (Metrics & Specifications)

Engineering Requirements

Engineering Requirements

The Customer and Engineering Requirements can be found here

House of Quality

The House of Quality sets the customer requirements against the engineering requirements to determine which parameters are of greater importance.

This can be viewed here.

Key Deliverables

The following are the deliverables that are expected at the end of the project.
Key Deliverables

Key Deliverables

Project Timeline

The following is an overview of the project plan.
 Overall Project Plan

Overall Project Plan

Plans for Next Phase

Phase 1 Accomplishments

The team plans for the next phase to:

The following is a section of the Gantt Chart that represents phase 2.

 Gantt Chart Phase 2

Gantt Chart Phase 2

The full project plan can be viewed on the current Gantt Chart.


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