The efficiency and safety of multidetector computed tomography-guided transseptal puncture during atrial fibrillation catheter ablation.

Cardiac MDCT can provide a clear vision of IAS orientation, and provide the appropriate RAO angle and height for TSP. The efficiency and safety of our MDCT-guided TSP were comparable to ICE-guided TSP, which may serve as an alternative method for TSP with ICE unavailable.