ECG non-gated multi-detector computed tomography protocol prior to catheter ablation of atrial fibrillation provides sufficient data quality with lower radiation exposure compared to ECG-gated protocol. A prospective, randomized and blinded study
oleh: Zbynek Tudos, Tomas Skala, Martin Homola, Ondrej Moravec, Milos Taborsky, Martin Kocher, Marie Cerna, Filip Ctvrtlik, Frantisek Odstrcil, Katerina Langova, Olga Klementova
| Format: | Article |
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| Diterbitkan: | Palacký University Olomouc, Faculty of Medicine and Dentistry 2018-11-01 |
Deskripsi
Background: The role of ECG-gating in left atrium (LA) computed tomography (MDCT) imaging is not precisely defined. Methods and Results: 62 patients were randomized according to ECG gating with prospective evaluation of image quality, Volume CT Dose Index, Dose Length Product, Effective Dose and registration error between anatomical map and MDCT. We found significant difference in all radiation variables, but not in visual quality, registration error, CA duration, CA fluoroscopy time and CA fluoroscopy dose. Conclusion: Helical non-gated MDCT achieved a radiation dose more than four times lower with comparable image quality and course of ablation compared to ECG-gated protocol.