Value of multi-detector computed tomography in delineation of the normal cardiac conduction system and related anatomic structures

Abstract

The cardiac conduction system is responsible for rhythmic myocardial stimulation for physiologic contraction of the heart. Aim of the work: To assess the value of MDCT in outlining anatomic landmarks and variants of conductive system, therefore provides crucial information used in clinical practice. Patients and methods: Thirty adult patients (18 males, 12 females) (mean age: 51.5 years) underwent elective retrospective ECG gated cardiac angiography using 128 MDCT. Results: MDCT enables accurate delineation of conduction system components such as SANa, AVNa, CT, BB, CTI, Koch triangle, LAI and PVs. Conclusion: MDCT has a fundamental role in demarcating potential arrhythmogenic structures before ablation procedures.

Keywords

• ECG-gated MDCT
• Cardiac angiography
• Conduction system