Scopus
🔓 Açık Erişim YÖKSİS Eşleşti
Radiation dose and diagnostic accuracy of high-pitch dual-source coronary angiography in the evaluation of coronary artery stenoses
Diagnostic and Interventional Imaging · Nisan 2016
YÖKSİS Kayıtları
Radiation dose and diagnostic accuracy of high pitch dual source coronary angiography in the evaluation of coronary artery stenoses
Diagnostic and Interventional Imaging · 2016 SCI-Expanded
PROFESÖR MUSTAFA KOPLAY →
Makale Bilgileri
DergiDiagnostic and Interventional Imaging
Yayın TarihiNisan 2016
Cilt / Sayfa97 · 461-469
Scopus ID2-s2.0-85014334786
Erişim🔓 Açık Erişim
Özet
Purpose: “Flash Spiral” imaging is a new prospective ECG-triggered spiral scan mode that uses a very high-pitch for coronary computed tomography angiography (CTA). This enables complete image acquisition within one cardiac cycle with a very low radiation exposure. The aim of this study was to investigate the diagnostic accuracy, image quality, and effective radiation dose of prospectively ECG-triggered high-pitch spiral method (Flash spiral mode) of coronary CTA using dual-source technology for the evaluation of coronary artery stenoses. Material and methods: The study included 186 consecutive patients (115 men, 71 women; mean age: 53.37 years) who underwent coronary CTA. Coronary CTA was performed with a 128 × 2-slice dual-source CT (Somatom Definition Flash, Siemens, Germany) using a prospectively ECG-triggered high-pitch spiral mode. Patients were divided into three groups according to heart rate (≤ 65 bpm, 66–75 bpm, ≥ 76 bpm) and body mass index (BMI) (20–24 kg/m<sup>2</sup>, 25–29 kg/m<sup>2</sup>, 30–34 kg/m<sup>2</sup>) values. The correlation between heart rates, image quality and BMI values are investigated. A four-point scale (1 = excellent, 4 = poor/non-diagnostic) was used to rank the comparative image quality. Effective radiation doses were calculated. Also the correlation between radiation dose, sex and BMI values were investigated. In addition, diagnostic accuracy of CTA for detection of significant (≥ 50%) coronary artery stenoses was compared with invasive coronary angiography findings of 612 vessel segments in 38 patients. The sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy rate were calculated. Results: A total of 2976 coronary artery segments were present. Of all coronary artery segments, 2381 (80%) had an image quality score of 1, and 1.5% segments were rated as “poor/non-diagnostic”. When the correlation between heart rate and image quality is investigated, there was a significant difference between ≤ 65 bpm and ≥ 76 bpm groups. However, there was no significant difference between ≤ 65 bpm and 66–75 bpm groups. The mean effective dose was found as 1.3 mSv (min: 0.5, max: 2.4 mSv). The correlation between effective radiation dose and BMI was moderate. However, the correlation between gender and radiation dose was significant. Sensitivity, specificity, negative predictive value and accuracy of coronary CTA on a per-vessel segment were 90.1%, 97.4%, 98.6%, and 96.5%, respectively. Conclusions: Prospectively ECG-triggered high-pitch spiral mode coronary CTA provides high image quality and diagnostic accuracy, with very low radiation dose for evaluation and exclusion of coronary artery stenoses.
Yazarlar (8)
1
M. Koplay
ORCID: 0000-0001-7513-4968
2
Hasan Erdogan
3
A. Avci
4
Mesut Sivri
5
Kenan Demir
6
Ibrahim Guler
7
Lütfi Saltuk Demir
8
Y. Paksoy
Anahtar Kelimeler
Coronary angiography
Dual source CT
High-pitch spiral acquisition
Image quality
Radiation dose
Kurumlar
Necmettin Erbakan Üniversitesi
Meram Turkey
Selçuk Üniversitesi
Selçuklu Turkey
Metrikler
25
Atıf
8
Yazar
5
Anahtar Kelime