Pediatric Thoracic MRI: Safer, Sharper and Smarter Diagnostics

Area of Science:

• Radiology
• Pediatric Imaging
• Medical Technology

Background:

• Pediatric thoracic MRI is a valuable diagnostic tool for high-resolution morphological and functional assessment.
• Conventional radiography and CT pose radiation risks for children needing repeated imaging.
• Technological advancements address prior MRI limitations, expanding its role in pediatric thoracic imaging.

Purpose of the Study:

• To review recent literature on technical advancements, MRI sequences, and clinical applications in pediatric thoracic imaging.
• To highlight innovations addressing MRI limitations in pediatric lung assessment.

Main Methods:

• Literature review focusing on technical advancements and clinical applications.
• Emphasis on ultrashort echo time (UTE), PREFUL MRI, hyperpolarized xenon-129 MRI, radial imaging, compressed sensing, parallel imaging, and respiratory gating.

Main Results:

• Modern MRI sequences provide detailed anatomic and quantitative functional assessment of the pediatric thorax.
• UTE and PREFUL MRI evaluate lung parenchyma, ventilation, and perfusion; hyperpolarized gas imaging offers functional mapping.
• Advanced techniques reduce motion artifacts and acquisition times, improving feasibility in children.

Conclusions:

• Pediatric thoracic MRI is a versatile, patient-friendly alternative and complementary method to CT.
• Ongoing developments in speed, motion compensation, and functional imaging will enhance diagnostic accuracy and clinical utility.