Preoperative Assessment of Coronary Arteries in Patients Undergoing Thoraco-Abdominal and Noncoronary Cardiovascular Surgery with Dual-Source Computed Tomography Angiography

2013 ◽  
Vol 29 (1) ◽  
pp. 59-65 ◽  
Author(s):  
Ling-Yi Wen ◽  
Zhi-Gang Yang ◽  
Li-Qing Peng ◽  
Yuan Li ◽  
Jing Chen
Keyword(s):  
Computed Tomography ◽  
Coronary Arteries ◽  
Computed Tomography Angiography ◽  
Cardiovascular Surgery ◽  
Preoperative Assessment ◽  
Dual Source ◽  
Dual Source Computed Tomography

Visualization of anomalous coronary arteries on dual-source computed tomography

2008 ◽  
Vol 18 (11) ◽  
pp. 2425-2432 ◽  
Author(s):  
G. J. de Jonge ◽  
P. M. A. van Ooijen ◽  
L. H. Piers ◽  
R. Dikkers ◽  
R. A. Tio ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Coronary Arteries ◽  
Dual Source ◽  
Anomalous Coronary ◽  
Anomalous Coronary Arteries ◽  
Dual Source Computed Tomography

Dual-Source Computed Tomography for Chronic Total Occlusion of Coronary Arteries

2014 ◽  
Vol 88 (4) ◽  
pp. E117-E125 ◽  
Author(s):  
Sandeep Singh ◽  
Navreet Singh ◽  
Gurpreet S. Gulati ◽  
Sivasubramanian Ramakrishnan ◽  
Guresh Kumar ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Coronary Arteries ◽  
Chronic Total Occlusion ◽  
Total Occlusion ◽  
Dual Source ◽  
Dual Source Computed Tomography

Dual-Source Computed Tomography Angiography in Aortic Stenosis: Comparison with Transthoracic Echocardiography

2014 ◽  
Vol 4 (5) ◽  
pp. 749-755
Author(s):  
Nur Adura Yaakup ◽  
Hooi Fang Phuah ◽  
Yang Faridah Abdul Aziz ◽  
Imran Zainal Abidin ◽  
Zhonghua Sun ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Aortic Stenosis ◽  
Computed Tomography Angiography ◽  
Transthoracic Echocardiography ◽  
Dual Source ◽  
Dual Source Computed Tomography

P6169Ultra-low radiation 70kv-coronary computed tomography angiography with low-dose contrast media using dual source computed tomography

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
S Komatsu ◽  
S Takahashi ◽  
C Yutani ◽  
M Takewa ◽  
T Ohara ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Body Weight ◽  
Contrast Media ◽  
Computed Tomography Angiography ◽  
Low Dose ◽  
Coronary Computed Tomography Angiography ◽  
Agatston Score ◽  
Coronary Computed Tomography ◽  
Dual Source ◽  
Dual Source Computed Tomography

Abstract Background The major concerns with coronary computed tomography angiography (CCTA) is the amount of contrast media (CM) injected and the radiation dose. Purpose To establish low radiation CCTA with low amount of contrast media. Methods Consecutive 60 patients (body weight ≤70mg or less and Agatston score ≤400) who were scheduled coronary computed tomography angiography were enrolled. Dual-source scanner (SOMATOM Force, Siemens, Germany) was used and CM used was Iopamidol 370mg/I (Bayer, Germany). Coronary CT angiography was performed with Turbo Flash Spiral and Sinogram Affirmed Iterative Reconstruction was done. The dose of contrast media was decided according to our original predicting system for 300HU. This study was approved by the local ethics committee and all patients gave written, informed consent. Exclusion criteria for CCTA were low Agatston score (<50), atrial fibrillation, allergy to CM, renal insufficiency (glomerular filtration rate <60 mL/min/1.73 mm2), pregnancy, congenital heart disease, low left ventricular function, and coronary artery bypass graft. All segments were evaluated using a 5-point scale: 5, excellent and easily assessable,; 4, good, mild artifacts at 1 segment and assessable; 3, evaluable, moderate artifacts on a few segments; 2, evaluable, diagnostic combined with axial images; and 1, not assessable. Results All patients successfully performed CCTA. Age averaged 46±15 yo (mean±S.D.) and body mass index averaged 22.5±3.0. Used CM was 12±7ml and intracoronary CT number 329±28HU. Dose-length product averaged 21.7±15.0 mGy cm and effective dose averaged 0.30±0.21mSv. Image quality averaged 4.8±0.7. CCTA with the lowest effective dose was 0.04mSv and CCTA with the lowest CM was 4ml. Conclusions Ultra-low dose 70kV-CCTA with low dose of contrast media can be performed using dual source computed tomography in patients with body weight ≤70mg or less and Agatston score ≤400.

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