Reducing sedation for pediatric body MRI using accelerated and abbreviated imaging protocols

Area of Science:

• Radiology
• Pediatric Imaging
• Medical Imaging Technology

Background:

• Magnetic resonance imaging (MRI) is vital for pediatric disease diagnosis without ionizing radiation.
• Sedation and general anesthesia (GA) are frequently used in pediatric MRI to manage motion, but carry risks.
• Concerns about potential long-term neurocognitive side effects of sedation/GA in children complicate risk-benefit assessments.

Purpose of the Study:

• To review technical and clinical strategies for reducing or eliminating sedation and general anesthesia in pediatric MRI.
• To focus on image acquisition acceleration and protocol abbreviation as key methods.
• To provide a basis for abbreviated MR protocols using reporting elements for specific pediatric body MRI indications.

Main Methods:

• Review of existing literature on accelerated MRI techniques for pediatric imaging.
• Discussion of physiological and technical considerations specific to pediatric body MRI.
• Introduction of a framework for abbreviating MRI protocols based on clinical indications and reporting needs.

Main Results:

• Accelerated MRI techniques show potential for acquiring diagnostic-quality images from faster scans.
• Abbreviated protocols, informed by clinical reporting elements, can be developed for specific pediatric indications.
• These approaches can significantly reduce the need for sedation and GA in pediatric chest, cardiovascular, and abdominal MRI.

Conclusions:

• Technical advancements in MRI acquisition and protocol design are key to minimizing sedation in pediatric patients.
• Implementing accelerated and abbreviated MRI protocols can improve safety and reduce the challenges associated with sedation/GA.
• This strategy supports safer and more efficient diagnostic imaging for children undergoing MRI.