Imaging Techniques in Percutaneous Cardiac Structural Interventions: Atrial Septal Defect Closure and Left Atrial...

Area of Science:

• Cardiology
• Medical Imaging
• Interventional Cardiology

Background:

• Advances in cardiac structural interventional procedures necessitate sophisticated imaging techniques.
• Imaging provides critical anatomic detail for successful interventional outcomes.
• Percutaneous closure of atrial septal defects and left atrial appendage are established procedures.

Purpose of the Study:

• To highlight the indispensable role of imaging in cardiac structural interventions.
• To emphasize the utility of 3D echocardiography in patient assessment and procedural guidance.
• To discuss the current and future applications of imaging in percutaneous cardiac interventions.

Main Methods:

• Systematic assessment of atrial septum anatomy, including defect size, shape, rims, and shunting.
• Utilizing 3D echocardiography for enhanced anatomic visualization and procedural planning.
• Integration of 3D echocardiography with other imaging modalities like CT and fluoroscopy.

Main Results:

• Percutaneous closure of ostium secundum atrial septal defects achieves up to 98% success rates.
• Left atrial appendage closure demonstrates 94% to 99% device implantation success rates.
• 3D echocardiography significantly improves anatomic assessments and procedural outcomes.

Conclusions:

• 3D echocardiography is the optimal imaging modality for assessing suitability, guiding procedures, and follow-up for percutaneous cardiac interventions.
• Experienced cardiac structural interventional teams are essential for successful left atrial appendage closure.
• Future focus may shift towards stroke prevention in selected patients using percutaneous closure techniques.