Three-dimensional and four-dimensional flow assessment in congenital heart disease

Area of Science:

• Cardiology
• Medical Imaging
• Biomedical Engineering

Background:

• Congenital heart disease (CHD) is the most common birth defect, with improved survival rates but increased long-term morbidity.
• Altered hemodynamics and abnormal blood flow patterns are increasingly recognized as contributors to cardiovascular deterioration in CHD patients.
• Current management often requires repeat interventions due to the complex nature of CHD and its long-term consequences.

Purpose of the Study:

• To review the role of altered hemodynamics in congenital heart disease.
• To discuss the utility of novel non-invasive cardiovascular hemodynamic evaluation techniques.
• To highlight the potential of these techniques in guiding interventions for patients with specific CHD conditions.

Main Methods:

• Review of current literature on hemodynamics in CHD.
• Discussion of two advanced non-invasive four-dimensional (4D) techniques: 4D-flow cardiac magnetic resonance (CMR) and computational fluid dynamics (CFD).
• Focus on the application of these methods in specific CHD patient groups with abnormal flow patterns.

Main Results:

• Abnormal blood flow patterns in CHD can lead to diminished cardiac and vascular function.
• Serial assessment of hemodynamic parameters is crucial for understanding disease progression.
• 4D-flow CMR and CFD offer advanced, non-invasive evaluation of complex cardiovascular hemodynamics.

Conclusions:

• Novel non-invasive hemodynamic assessment tools can provide valuable insights into CHD pathophysiology.
• These advanced techniques may help optimize timing and type of interventions, potentially preventing cardiovascular deterioration.
• Further research and clinical integration of 4D-flow CMR and CFD are warranted for improved CHD management.