dc.contributor.author | Ünal, Emre | |
dc.contributor.author | Yıldız, A. Elçin | |
dc.contributor.author | Güler, Ezgi | |
dc.contributor.author | Karcaaltıncaba, Muşturay | |
dc.contributor.author | Akata, Deniz | |
dc.contributor.author | Kılınçer, Abidin | |
dc.contributor.author | Atlı, Eray | |
dc.contributor.author | Topçuoğlu, Melih | |
dc.contributor.author | Hazırolan, Tuncay | |
dc.date.accessioned | 2019-12-10T11:31:13Z | |
dc.date.available | 2019-12-10T11:31:13Z | |
dc.date.issued | 2015 | |
dc.identifier.issn | 2149-2263 | |
dc.identifier.uri | https://doi.org/10.5152/akd.2014.5720 | |
dc.identifier.uri | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5368488/ | |
dc.identifier.uri | http://hdl.handle.net/11655/15864 | |
dc.description.abstract | Objective: To evaluate radiation dose and image quality of prospectively electrocardiography (ECG)-triggered and retrospectively ECG-gated coronary computed tomography (CT) angiography and to establish cut-off values of heart rates (HRs) for each technique in firstgeneration dual-source CT. Methods: A total of 200 consecutive patients with suspected coronary artery disease were accepted into the study. Patients were selected randomly for each technique (prospective triggering group n=99, mean age 55.85±10.74 and retrospective gating group n=101, mean age 53.38±11.58). Two independent radiologists scored coronary artery segments for image quality using a 5-point scale. Also, attenuation values of each coronary artery segment and dose-length product values were measured. For each technique, cut-off HR values were determined for the best image quality. Results: Mean image quality scores and attenuation values were found to be higher in the prospective triggering group (p<0.05). Mean radiation dose was 73% lower for the prospective triggering group (p<0.01). The cut-off HR values for good image quality scores were ≤67 beats per minute (bpm) and ≤80 bpm for the prospective triggering and retrospective gating groups, respectively (p<0.05). Increased HR (≥68 and ≥81 bpm, respectively) had negative effects on image quality (p<0.05). Conclusion: The prospective ECG triggering technique has better image quality scores than retrospective ECG gating, particularly in patients who have an HR of less than 68 bpm. Also, a 73% radiation dose reduction can be achieved with prospective ECG triggering. In patients with higher heart rates, retrospective ECG gating is recommended. | |
dc.relation.isversionof | 10.5152/akd.2014.5720 | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.title | Comparison Of Image Quality And Radiation Dose Between Prospectively Ecg-Triggered And Retrospectively Ecg-Gated Ct Angiography: Establishing Heart Rate Cut-Off Values In First-Generation Dual-Source Ct | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:eu-repo/semantics/publishedVersion | |
dc.relation.journal | Anatolian Journal of Cardiology | |
dc.contributor.department | Radyoloji | |
dc.identifier.volume | 15 | |
dc.identifier.issue | 9 | |
dc.identifier.startpage | 759 | |
dc.identifier.endpage | 764 | |
dc.description.index | PubMed | |
dc.description.index | WoS | |
dc.description.index | Scopus | |