ArticleDiagnostic and interventional radiology (Ankara, Turkey)2019
Ultra-low dose contrast CT pulmonary angiography in oncology patients using a high-pitch helical dual-source technology.
Article in Diagnostic and interventional radiology (Ankara, Turkey), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 26 citations in OpenAlex.
- Vascular attenuation and volumetric lung iodine density in dual-layer spectral CT pulmonary angiography: a randomized controlled trial comparing three contrast doses.European radiology · 2026Trial
- Deep learning reconstruction combined with contrast-enhancement boost in dual-low dose CT pulmonary angiography: a two-center prospective trial.European radiology · 2025Trial
- Individualized Scan Protocol Based on Body Mass Index in Dual-Energy Computed Tomography Pulmonary Angiography to Reduce Radiation and Contrast Doses with Improved Image Quality.Medical science monitor : international medical journal of experimental and clinical research · 2023Trial
- Minimizing contrast media dose in CT pulmonary angiography with high-pitch technique.The British journal of radiology · 2020Trial
- Dual-energy CT pulmonary angiography using dual-flow mixture bolus tracking: potential for contrast medium and radiation exposure reduction.Insights into imaging · 2026Article
- High-pitch photon-counting detector computed tomography angiography of the coronary arteries: Qualitative and quantitative evaluation of monoenergetic image reconstructions.European journal of radiology open · 2025Article
- Study on the effect of three-low technique in aortic computed tomography angiography for patients with body mass index <30 kg/mQuantitative imaging in medicine and surgery · 2025Article
- Performance of iodine quantification through high-pitch dual-source photon-counting CT: a phantom study.Japanese journal of radiology · 2025Article
- High-pitch CT pulmonary angiography (CTPA) with ultra-low contrast medium volume for the detection of pulmonary embolism: a comparison with standard CTPA.European radiology · 2024Article
- Photon-counting CT for diagnosis of acute pulmonary embolism: potential for contrast medium and radiation dose reduction.European radiology · 2023Article
- What the Baby Formula and Medical Contrast Material Shortages Have in Common: Insights and Recommendations for Managing the Iodinated Contrast Media Shortage.Radiology. Cardiothoracic imaging · 2022Article
- Evaluation of ultralow-dose computed tomography on detection of pulmonary nodules in overweight or obese adult patients.Journal of applied clinical medical physics · 2022Article
- Optimizing low contrast volume thoracic CT angiography: From the basics to the advanced.Journal of clinical imaging science · 2022Article
- Split-bolus computed tomography urography (CTU) achieves more than half of radiation dose reduction in females and overweight patients than conventional single-bolus computed tomography urography.Translational oncology · 2021Article
- Factors Affecting Radiation Dose in Computed Tomography Angiograms for Pulmonary Embolism: A Retrospective Cohort Study.Journal of clinical imaging science · 2020Article
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeWe aimed to determine if the image quality and vascular enhancement are preserved in computed tomography pulmonary angiography (CTPA) studies performed with ultra-low contrast and optimized radiation dose using high-pitch helical mode of a second generation dual source scanner.
methodsWe retrospectively evaluated oncology patients who had CTPA on a 128-slice dual-source scanner, with a high-pitch helical mode (3.0), following injection of 30 mL of Ioversal at 4 mL/s with body mass index (BMI) dependent tube potential (80-120 kVp) and current (130-150 mAs). Attenuation, noise, and signal-to-noise ratio (SNR) were measured in multiple pulmonary arteries. Three independent readers graded the images on a 5-point Likert scale for central vascular enhancement (CVE), peripheral vascular enhancement (PVE), and overall quality.
resultsThere were 50 males and 101 females in our study. BMI ranged from 13 to 38 kg/m2 (22.8±4.4 kg/m2). Pulmonary embolism was present in 29 patients (18.9%). Contrast enhancement and SNR were excellent in all the pulmonary arteries (395.3±131.1 and 18.3±5.7, respectively). Image quality was considered excellent by all the readers, with average reader scores near the highest possible score of 5.0 (CVE, 4.83±0.48; PVE, 4.68±0.65; noise/quality, 4.78±0.47). The average radiation dose length product (DLP) was 161±60 mGy.cm.
conclusionUsing a helical high-pitch acquisition technique, CTPA images of excellent diagnostic quality, including visualization of peripheral segmental/sub-segmental branches can be obtained using an ultra-low dose of iodinated contrast and low radiation dose.
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