Methods for prenatal assessment of fetal cardiac function

Area of Science:

• Cardiology
• Fetal Medicine
• Medical Imaging

Background:

• Fetal cardiac function is a key indicator of disease severity and prognosis.
• Magnetic Resonance Imaging (MRI) is limited in human fetal cardiology due to the lack of a noninvasive fetal electrocardiogram (ECG).
• Ultrasound remains the primary noninvasive method for evaluating human fetal cardiac function.

Purpose of the Study:

• To provide a comprehensive overview of ultrasound techniques for fetal cardiac function assessment.
• To discuss the strengths and limitations of various ultrasound methods.
• To highlight advancements in fetal cardiac imaging.

Main Methods:

• Review of conventional ultrasound techniques: M-mode for ventricular contractility, Doppler for precordial veins and cardiac output.
• Discussion of advanced techniques: Myocardial Performance Index (MPI), tissue Doppler, speckle tracking, and 3D ultrasound.
• Analysis of theoretical strengths and shortcomings of each method.

Main Results:

• Conventional ultrasound methods provide foundational assessments of fetal cardiac function.
• Advanced techniques offer more detailed insights into myocardial performance and motion.
• Each ultrasound modality presents unique advantages and limitations for clinical application.

Conclusions:

• Ultrasound is crucial for assessing fetal cardiac function in the absence of feasible MRI-based methods.
• A range of ultrasound techniques, from conventional to advanced, are available for clinical use.
• Understanding the capabilities of each technique is essential for accurate fetal cardiac assessment and management.