Observational studyJournal of cardiovascular computed tomography
Coronary CT angiography in the emergency department utilizing second and third generation dual source CT.
Observational study in Journal of cardiovascular computed tomography. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
What it found
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Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.
- Update of the Brazilian Guideline on Nuclear Cardiology - 2020.Arquivos brasileiros de cardiologia · 2020Guideline
- Pediatric Cardiac Imaging With Second- and Third-generation Dual Source CT Scanners: Radiation Dose, and Diagnostic Accuracy in Comparison With Echocardiography and MRI-A Systematic Review and Meta-analysis.Journal of the Saudi Heart Association · 2026Review
- Improvement of coronary stent visualization using ultra-high-resolution photon-counting detector CT.European radiology · 2024Article
- Selective Use of CT Fractional Flow at a Large Academic Medical Center: Insights from Clinical Implementation after 1 Year of Practice.Radiology. Cardiothoracic imaging · 2024Observational
- Sex Differences in Coronary Artery Disease Characteristics Among Patients With Type 2 Myocardial Infarction.JACC. Advances · 2024Article
- Quantitative evaluation of coronary artery visibility on CT angiography in Kawasaki disease: young vs. old children.The international journal of cardiovascular imaging · 2021Article
- Role of Coronary CT Angiography in Spontaneous Coronary Artery Dissection.Radiology. Cardiothoracic imaging · 2020Review
- Preventive Management of Nonobstructive CAD After Coronary CT Angiography in the Emergency Department.JACC. Cardiovascular imaging · 2020Article
- Simultaneous Assessment of Left Ventricular Function and Coronary Artery Anatomy by Third-generation Dual-source Computed Tomography Using a Low Radiation Dose.Journal of cardiovascular imaging · 2020Article
- False-Negative Low Tube Voltage Coronary CT Angiography: High Intravascular Attenuation at Coronary CT Angiography Can Mask Calcified Plaques.Radiology. Cardiothoracic imaging · 2019Article
- Vascular computed tomography angiography technique and indications.Cardiovascular diagnosis and therapy · 2019Review
- Ultra-low dose one-step CT angiography for coronary, carotid and cerebral arteries using 128-slice dual-source CT: A feasibility study.Experimental and therapeutic medicine · 2019Article
- Automatic tube potential selection with tube current modulation in coronary CT angiography: Can it achieve consistent image quality among various individuals?Experimental and therapeutic medicine · 2018Article
- Perivascular Epicardial Fat Stranding at Coronary CT Angiography: A Marker of Acute Plaque Rupture and Spontaneous Coronary Artery Dissection.Radiology · 2018Article
- Fractional Flow Reserve Derived from Coronary Computed Tomography Angiography Datasets: The Next Frontier in Noninvasive Assessment of Coronary Artery Disease.BioMed research international · 2018Review
- Advances in cardiac CT contrast injection and acquisition protocols.Cardiovascular diagnosis and therapy · 2017Article
- Incidental pulmonary nodules in emergent coronary CT angiography for suspected acute coronary syndrome: Impact of revised 2017 Fleischner Society Guidelines.Journal of cardiovascular computed tomographyArticle
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
backgroundCoronary computed tomography angiography (coronary CTA) allows efficient triage of low to intermediate risk patients with suspected acute coronary syndrome (ACS) in the emergency department (ED). Techniques for coronary CTA acquisition in the ED continue to evolve with the establishment of standardized scan protocols and the introduction of newer generations of CT hardware.
objectivesTo evaluate qualitative and quantitative image quality and radiation dose exposure of coronary CTA acquired on 2nd versus 3rd generation dual source CT (DSCT) scanners using a standardized institutional scan protocol designed for the ED.
methodsA retrospective observational case-control study was performed of 246 ED patients referred to coronary CTA with suspicion of ACS (56.5% male; mean age 53.3 ± 11.6 years) between October 2013 and August 2015.123 consecutive patients were scanned on 3rd generation DSCT, and a cohort of 123 patients matched by age, BMI and heart rate were identified who had undergone 2nd generation DSCT imaging utilizing the same standard clinical protocol. Qualitative and quantitative image quality parameters and radiation exposures were evaluated.
resultsQualitative image quality was significantly higher using 3rd generation DSCT as compared to 2nd generation (p < 0.001). Mean attenuation in the proximal coronary arteries was also significantly higher on 3rd generation DSCT than for 2nd generation (586 HU vs. 426 HU in the left main coronary artery (LM), p < 0.001). Signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) values, however, were lower in 3rd generation DSCT than 2nd generation (SNR 11.2 [9.9-13.4] vs 13.5 [11.0-15.5] and CNR 12.4 [10.9-14.8] vs 15.2 [12.8-17.9] in the LM, p < 0.001). Median effective dose was also lower for 3rd generation DSCT than for 2nd generation (2.9 [2.3-5.0] mSv and 3.7 mSv [2.5-5.7], respectively) although this trend did not reach statistical significance (p = 0.065).
conclusionQualitative image quality and mean CT attenuation values of the assessed coronary segments were significantly higher using 3rd generation DSCT. SNR and CNR were lower on 3rd generation DSCT, however this was accompanied by a trend toward lower radiation dose exposure when using the same standard institutional protocol.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.