ArticleActa Cardiologica Sinica2018
Non-Gated Triple Flash Coronary Computed Tomographic Angiography in Patients with Atrial Fibrillation.
Article in Acta Cardiologica Sinica, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Basic Concepts and Insights into Aortopulmonary Collateral Arteries in Congenital Heart Diseases.The Indian journal of radiology & imaging · 2023Review
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8 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundAtrial fibrillation (AF) presents a potential challenge when performing coronary computed tomography angiography (CTA). To date, there is no ideal protocol for CTA in patients with AF. We sought to design a protocol for single-heartbeat coronary CTA in patients with AF.
methodsWe enrolled 32 patients with AF and a very low probability of coronary artery disease who were referred for CTA to assess pulmonary vein anatomy for catheter ablation. A 256-slice scanner was used. Twelve patients underwent CTA using non-gated triple Flash (NGTF) consisting of three prospective electrocardiogram (ECG)-triggered helical scans with a built-in ECG simulator, while retrospectively gated helical (RGH) was used in 20 patients. Radiation dose, and a 4-point scale was used to assess coronary artery image quality between CTA scan modes.
resultsA total of 96 vessels were analyzed. The 4-point score showed no significant differences between the RGH and NGTF scans (2.9 ± 0.6 vs. 2.8 ± 0.8, respectively; p = 0.34). The number of coronary arteries with extensive blurring did not significantly differ between the protocols, and included four vessels (6.6%) in RGH vs. three vessels (8.3%) in NGTF (p = 0.5). Radiation exposure was significantly higher with RGH scans, with a dose-length product of 835 ± 146 mGy compared with 382 ± 35 mGy for NGTF (p < 0.0001).
conclusionsSingle heartbeat NGTF CTA has comparable image quality and significantly lower radiation dose compared to RGH scans in patients with AF. Whether this protocol can be used in next-generation computed tomography scanners has yet to be determined.
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