Scopus
🔓 Açık Erişim YÖKSİS Eşleşti
Comparison of image quality and radiation dose between prospectively establishing ECG-triggered heart rate and retrospectively cut-off values in ECG-gated first-generation CT angiography: Dual-source CT
Anatolian Journal of Cardiology · Ocak 2015
YÖKSİS Kayıtları
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
ANATOLIAN JOURNAL OF CARDIOLOGY · 2015 SCI-Expanded
DOÇENT ABİDİN KILINÇER →
Makale Bilgileri
DergiAnatolian Journal of Cardiology
Yayın TarihiOcak 2015
Cilt / Sayfa15 · 759-764
Scopus ID2-s2.0-84988530160
Erişim🔓 Açık Erişim
Özet
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 first-generation 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.
Yazarlar (9)
1
Emre Ünal
2
A. Elçin Yıldız
3
Ezgi Güler
4
Muşturay Karçaaltincaba
5
Deniz Akata
6
Abidin Kılınçer
7
Eray Atlı
8
Melih Topçuoğlu
9
Tuncay Hazirolan
Anahtar Kelimeler
Cardiac gated imaging techniques
Comparative study
Coronary angiography
Multidetector computed tomography
Radiation protection
Kurumlar
Hacettepe Üniversitesi
Ankara Turkey
Metrikler
12
Atıf
9
Yazar
5
Anahtar Kelime