How to behave with paediatric myocarditis: imaging methods and clinical considerations

Area of Science:

• Cardiology
• Pediatric Cardiology
• Medical Imaging

Background:

• Paediatric myocarditis presents heterogeneously, from mild symptoms to life-threatening complications.
• Early diagnosis and management are vital for improving outcomes in children.
• Traditional echocardiography has limitations in detecting subtle myocardial changes and inflammation.

Purpose of the Study:

• To review the critical role of advanced imaging in diagnosing, prognosticating, and managing paediatric myocarditis.
• To highlight the benefits of multimodal imaging approaches integrating echocardiography and cardiovascular magnetic resonance (CMR).
• To emphasize an imaging-driven strategy for optimizing care in pediatric myocarditis.

Main Methods:

• Review of current literature on advanced imaging techniques for paediatric myocarditis.
• Discussion of echocardiography, including speckle-tracking echocardiography.
• Emphasis on cardiovascular magnetic resonance (CMR) and its parametric mapping techniques (T1 and T2 mapping).

Main Results:

• Advanced imaging, particularly CMR, offers superior tissue characterization for myocardial edema, necrosis, and fibrosis.
• Parametric mapping techniques enable accurate detection of inflammation and fibrosis, even without contrast agents.
• Multimodal imaging provides a comprehensive assessment of disease severity, guiding therapeutic decisions.

Conclusions:

• Multimodal imaging, combining echocardiography and CMR, is essential for a thorough understanding and management of paediatric myocarditis.
• An imaging-driven, tailored approach is crucial for optimizing long-term outcomes in pediatric patients.
• Advanced imaging techniques significantly enhance the diagnosis, prognosis, and treatment of paediatric myocarditis.