Targeted Flow Cardiac MRI in Neonates with Intracardiac Shunts: A Novel Multi-Modality Imaging Approach to...

Area of Science:

• Pediatric Cardiology
• Cardiovascular Imaging
• Medical Diagnostics

Background:

• Elevated right-heart pressures in infants are difficult to attribute to pulmonary vascular resistance or intracardiac shunts using traditional methods.
• Clinical assessment and echocardiography have limitations in precisely quantifying the contributions of these factors.

Purpose of the Study:

• To evaluate the initial experience of using cardiac MRI for non-invasive Qp:Qs measurement in infants.
• To assess the feasibility of performing cardiac MRI with minimal or no sedation for this indication.

Main Methods:

• Cardiac MRI was implemented to non-invasively measure the Qp:Qs ratio.
• The study involved infants with suspected pulmonary hypertension, utilizing varying levels of sedation (none, minimal, or baseline).

Main Results:

• Cardiac MRI provides a non-invasive approach to quantify Qp:Qs in infants.
• The technique shows promise for differentiating the causes of elevated right-heart pressures.

Conclusions:

• Cardiac MRI is a viable tool for assessing Qp:Qs in infants with potential pulmonary hypertension.
• This non-invasive imaging modality can assist in clinical decision-making for complex pediatric cardiovascular conditions.