Portable MRI in Pediatrics: Weighing the Costs and Benefits. Revolution or Novelty?

Area of Science:

• Pediatric Neurology
• Medical Imaging Technology
• Critical Care Medicine

Background:

• Conventional MRI (cMRI) provides high-quality brain imaging but requires patient transport.
• Portable MRI (pMRI) offers bedside capabilities and reduced costs, addressing cMRI limitations.
• Pediatric patients present unique challenges for MRI due to motion and critical illness.

Purpose of the Study:

• To review the utility and limitations of portable MRI (pMRI) in a pediatric hospital setting.
• To evaluate pMRI's effectiveness in diagnosing various pediatric brain pathologies.
• To define the complementary role of pMRI alongside cMRI and CT.

Main Methods:

• Literature review of studies examining pMRI in pediatric populations.
• Analysis of pMRI's performance in detecting specific intracranial abnormalities.
• Comparison of pMRI capabilities with cMRI and CT for pediatric brain imaging.

Main Results:

• pMRI facilitates bedside imaging, enhancing access for critically ill children and reducing transport risks.
• pMRI effectively identifies large intracranial issues like hydrocephalus, edema, and hemorrhage.
• pMRI demonstrates lower reliability for subtle parenchymal injuries, white-matter changes, and small hemorrhages due to motion artifact and lower resolution.

Conclusions:

• pMRI is a valuable adjunct to cMRI and CT in pediatric critical care, especially where bedside monitoring or limited MRI access is a concern.
• pMRI cannot replace cMRI for diagnosing subtle pediatric brain injuries due to limitations in spatial resolution and signal-to-noise ratio.
• Further research is needed to optimize pMRI protocols and fully define its clinical role in pediatric neurology.