What type of study is this?

This is a Experimental Study study.

September 17, 2025

A Head-Cap RF-Coil Array to Enable Comfortable Sleep and Concurrent TMS/EEG/fMRI

Key Points

The head-cap rf-coil array allows for prolonged overnight sleep studies without significant performance loss during tms and eeg.
Results indicate enhanced comfort and full brain coverage compared to traditional head arrays, minimizing performance degradation.
Designed with 25 reinforced elements, the head-cap enables flexible cable management and optimal head positioning for studies.
The impact of this technology may transform how researchers investigate neural dynamics during sleep and tms effects.

Abstract

Motivation: To address the limitations of performing whole night uninterrupted sleep studies and concurrent TMS/EEG/fMRI in an MR environment. Goal(s): To develop an advanced 25-channel ultra-thin Head-Cap RF-Coil Array that provides full brain coverage, durability, and EEG/TMS compatibility with minimal performance degradation. Approach: An ultra-thin and modular Head-Cap Array is designed using 25 reinforced Twstr elements arranged in a "soccer-ball" geometry with adjustable cable routes to accommodate the needs of a study. Results: The Head-Cap demonstrates improved performance when compared to a standard head array, provides comfort and unrestricted head placement for sleep with minimal reduction in performance when used with EEG or TMS. Impact: This Head-Cap Array could enable prolonged overnight sleep studies and concurrent TMS/EEG/fMRI allowing researchers to study neural dynamics during sleep, and monitor the causal effects of TMS with minor reduction in imaging performance.

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