Cot-side imaging of functional connectivity in the developing brain during sleep using wearable high-density diffuse...

Area of Science:

• Neuroscience
• Medical Imaging
• Neonatal Research

Background:

• Traditional neuroimaging is challenging in newborns.
• Functional near-infrared spectroscopy (fNIRS) has limitations in spatial resolution and depth specificity.
• Bulky optical fibers in fNIRS pose mechanical challenges for infant studies.

Purpose of the Study:

• Introduce wearable, high-density diffuse optical tomography (HD-DOT) for neonatal brain imaging.
• Conduct the first clinical cot-side study using wearable HD-DOT in newborn infants.
• Investigate the impact of neonatal sleep states (active sleep and quiet sleep) on functional brain connectivity (FC).

Main Methods:

• Utilized a new generation of wearable, modular HD-DOT technology.
• Performed cot-side functional brain imaging in a clinical setting with newborn infants.
• Analyzed resting-state functional brain connectivity (FC) during different sleep states.

Main Results:

• Demonstrated the feasibility of obtaining high-quality functional brain images in neonates at the bedside.
• Observed that neonatal sleep states differentially affect resting-state functional brain connectivity.
• Results are consistent with previous findings on sleep state effects on brain connectivity.

Conclusions:

• Wearable HD-DOT is a viable, high-quality neuroimaging tool for clinical neonatal research.
• Neonatal sleep states play a significant role in modulating functional brain connectivity.
• This technology overcomes limitations of traditional fNIRS, enabling new research avenues.