ArticleEuropean radiology2019
Single- and dual-energy CT pulmonary angiography using second- and third-generation dual-source CT systems: comparison of radiation dose and image quality.
Article in European radiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed, 35 citations in OpenAlex.
- Comparison of breast-level surface dose between single-energy CT and fast kilovoltage-switching dual-energy CT under matched CTDIvol conditions: a chest phantom study.Radiological physics and technology · 2026Article
- 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
- Comprehensive review of pulmonary embolism imaging: past, present and future innovations in computed tomography (CT) and other diagnostic techniques.Japanese journal of radiology · 2025Review
- Dual-Energy CT as a Well-Established CT Modality to Reduce Contrast Media Amount: A Systematic Review from the Computed Tomography Subspecialty Section of the Italian Society of Radiology.Journal of clinical medicine · 2024Review
- Imaging in chronic thromboembolic pulmonary disease: Current practice and advances.International journal of cardiology. Congenital heart disease · 2024Review
- Comparison of image quality, arterial depiction, and radiation dose between two rapid kVp-switching dual-energy CT scanners in CT angiography at 40-keV.Japanese journal of radiology · 2023Article
- Multi-Contrast Differentiation by Dual-Energy Spectral CT Angiography in a Patient with Pulmonary Barium Granulomas.Diagnostics (Basel, Switzerland) · 2023Article
- Acute Pulmonary Embolism: Prognostic Role of Computed Tomography Pulmonary Angiography (CTPA).Tomography (Ann Arbor, Mich.) · 2022Review
- Comparison of Image Quality and Radiation Dose Between Single-Energy and Dual-Energy Images for the Brain With Stereotactic Frames on Dual-Energy Cerebral CT.Frontiers in radiology · 2022Article
- Virtual non-calcium dual-energy CT: clinical applications.European radiology experimental · 2021Review
- Dual-Energy CT for Pulmonary Embolism: Current and Evolving Clinical Applications.Korean journal of radiology · 2021Review
- Building a dual-energy CT service line in abdominal radiology.European radiology · 2021Review
- Dual-energy computed tomography in acute ischemic stroke: state-of-the-art.European radiology · 2021Review
- Head and neck single- and dual-energy CT: differences in radiation dose and image quality of 2nd and 3rd generation dual-source CT.The British journal of radiology · 2021Article
- Endovascular therapies for pulmonary embolism.Heliyon · 2021Review
- Does dual-energy abdominal computed tomography increase the radiation dose to patients: a prospective observational study.Polish journal of radiology · 2021Article
- Dual energy imaging in cardiothoracic pathologies: A primer for radiologists and clinicians.European journal of radiology open · 2021Review
- Dual-energy CT angiography in suspected pulmonary embolism: influence of injection protocols on image quality and perfused blood volume.The international journal of cardiovascular imaging · 2020Article
- Acquisition time, radiation dose, subjective and objective image quality of dual-source CT scanners in acute pulmonary embolism: a comparative study.European radiology · 2020Article
- Optimizing the diagnosis and assessment of chronic thromboembolic pulmonary hypertension with advancing imaging modalities.Pulmonary circulationReview
Corrections and comments
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Authors and funding
10 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo evaluate radiation exposure and image quality in matched patient cohorts for CT pulmonary angiography (CTPA) acquired in single- and dual-energy mode using second- and third-generation dual-source CT (DSCT) systems.
methodsWe retrospectively included 200 patients (mean age, 65.5 years ± 15.7 years) with suspected pulmonary embolism-equally divided into four study groups (n = 50) and matched by gender and body mass index. CTPA was performed with vendor-predefined second-generation (group A, 100-kV single-energy computed tomography (SECT); group B, 80/Sn140-kV dual-energy computed tomography (DECT)) or third-generation DSCT (group C, 100-kV SECT; group D, 90/Sn150-kV DECT) devices. Radiation metrics were assessed using a normalized scan range of 27.5 cm. For objective image quality evaluation, dose-independent figure-of-merit (FOM) contrast-to-noise ratios (CNRs) were calculated. Subjective image analysis included ratings for overall image quality, reader confidence, and image artifacts using five-point Likert scales.
resultsCalculations of the effective dose (ED) of radiation for a normalized scan range of 27.5 cm showed nonsignificant differences between SECT and DECT acquisitions for each scanner generation (p ≥ 0.253). The mean effective radiation dose was lower for third-generation groups C (1.5 mSv ± 0.8 mSv) and D (1.4 mSv ± 0.7 mSv) compared to second-generation groups A (2.5 mSv ± 0.9 mSv) and B (2.3 mSv ± 0.6 mSv) (both p ≤ 0.013). FOM-CNR measurements were highest for group D. Qualitative image parameters of overall image quality, reader confidence, and image artifacts showed nonsignificant differences among the four groups (p ≥ 0.162).
conclusionsThird-generation DSCT systems show lower radiation dose parameters for CTPA compared to second-generation DSCT. DECT can be performed with both scanner generations without radiation dose penalty or detrimental effects on image quality compared to SECT. KEY POINTS: • Radiation exposure showed nonsignificant differences between SECT and DECT for both DSCT scanner devices. • Dual-energy CTPA provides equivalent image quality compared to standard image acquisition. • Subjective image quality assessment was similar among the four study groups.
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