A user-friendly method of cardiac venous system visualization in 64-slice computed tomography

Area of Science:

• Cardiovascular Imaging
• Medical Technology
• Radiology

Background:

• Cardiac venous system previsualization is crucial for interventions such as cardiac resynchronization therapy (CRT).
• Current visualization methods may lack user-friendliness or optimal clarity.
• Accurate anatomical mapping of cardiac veins is essential for procedural success.

Purpose of the Study:

• To introduce and evaluate a novel, user-friendly method for visualizing the cardiac venous system using 64-slice computed tomography (CT).
• To assess the utility of this method for preprocedural planning in cardiac interventions.
• To compare CT-generated images with intraoperative fluoroscopy views.

Main Methods:

• A retrospective analysis of 112 patients (66 male) undergoing 64-slice CT with electrocardiogram gating for suspected ischemic heart disease.
• Image reconstruction protocols were optimized for cardiac resynchronization therapy (CRT) planning.
• Specific attention was given to generating standard fluoroscopic views (anterior-posterior, left anterior oblique, right anterior oblique).

Main Results:

• The proposed CT method successfully generated images comparable to intraoperative fluoroscopy views in 74% of patients.
• The coronary sinus was consistently visualized (100%), with measured ostium diameter and entrance angle.
• At least one target cardiac vein was clearly visible in 95% of patients, with posterolateral and lateral veins being most frequently identified (78%).

Conclusions:

• The developed 64-slice CT imaging protocol provides a user-friendly approach to cardiac venous system visualization.
• The generated images closely mimic intraoperative fluoroscopy, offering valuable previsualization for CRT and similar procedures.
• This technique can enhance procedural planning and potentially improve patient outcomes where cardiac venous anatomy is critical.