What is the MEP-Option Wireless?

The MEP-Option Wireless is MAG & More’s integrated wireless EMG device for online motor evoked potential (MEP) measurement during TMS sessions. Connecting directly to the PowerMAG stimulator, it enables real-time monitoring of corticospinal excitability without cumbersome cables between the patient and recording equipment — streamlining the workflow for motor threshold determination, MEP amplitude tracking, and connectivity studies.

With two bipolar input channels and 2048-step resolution, the MEP-Option Wireless provides high-fidelity EMG recording at the quality needed for precise cortical excitability assessment during both clinical and research TMS protocols.

Key Features

• Wireless Operation: Eliminates the cable connection between the patient and the recording device, improving patient comfort and reducing setup time during motor threshold determination and MEP tracking.
• Two Bipolar Input Channels: Dual-channel configuration enables simultaneous recording from two muscle groups, supporting bilateral MEP comparisons or two-site excitability measurements in a single session.
• 2048-Step Resolution: High-resolution analog-to-digital conversion ensures accurate capture of MEP waveform morphology, latency, and amplitude for quantitative excitability assessment.
• Real-Time MEP Display: Provides immediate visual feedback of the corticospinal response following each TMS pulse, enabling rapid motor threshold determination.
• Integrated with PowerMAG Stimulators: Purpose-designed to work with all PowerMAG research and clinical stimulators, with synchronization triggered directly by the stimulator output.
• Motor Threshold Determination: Essential for calculating individualized TMS dosing as a percentage of resting motor threshold (rMT) in research and clinical protocols.