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.
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| http://dx.doi.org/10.5507/bp.2018.045 | DOI Listing |
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