3T MRI in paediatrics: challenges and clinical applications

Area of Science:

• Medical Imaging
• Pediatric Radiology
• Magnetic Resonance Imaging

Background:

• 3 Tesla (3T) MRI is increasingly utilized in pediatrics due to its enhanced spatial and temporal resolution.
• These improvements help address the unique anatomical, physiological, and behavioral challenges in pediatric imaging.
• 3T MRI facilitates imaging of small anatomical structures and offers potential for whole-body scans due to faster acquisition times.

Purpose of the Study:

• To review the applications and challenges of 3T MRI in pediatric imaging.
• To highlight the advantages of 3T MRI in visualizing small pediatric structures.
• To discuss the opportunities and limitations of 3T MRI in various pediatric subspecialties.

Main Methods:

• Review of current literature on 3T MRI in pediatric clinical practice.
• Discussion of technical aspects including resolution, artifacts, and safety considerations (e.g., specific absorption rate).
• Exploration of advanced MRI techniques applicable at 3T, such as MR angiography and functional MRI.

Main Results:

• 3T MRI provides superior resolution for imaging small pediatric structures like the inner ear and vascular system.
• Despite challenges (T1 contrast alteration, susceptibility artifacts, B1 inhomogeneity), software and hardware advances mitigate some issues.
• Advanced techniques like MR angiography, arterial spin labelling, and functional MRI show promise for pediatric applications.
• Whole-body imaging becomes more feasible due to faster scan times.
• Neonatal brain, pediatric spine, and cardiac imaging present specific challenges at 3T.

Conclusions:

• 3T MRI offers significant potential for comprehensive pediatric imaging across various systems.
• Addressing current challenges in neonatal brain, spine, and cardiac imaging requires further coil technology and sequence development.
• Continued advancements are expected to expand the utility of 3T MRI in pediatric radiology.