Trial reportMedicine2014
High-pitch coronary CT angiography at 70 kVp with low contrast medium volume: comparison of 80 and 100 kVp high-pitch protocols.
Trial report in Medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02971176 (Low-dose Protocol for Computed Tomography-guided Lung Biopsy), which is not on this map. Cited by 16 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Low-dose Protocol for Computed Tomography-guided Lung Biopsy
Who cites it
16 citing papers in PubMed.
- Contrast dose reduction with shortened injection durations in coronary CT angiography on 16-cm Wide-detector CT scanner.The British journal of radiology · 2018Trial
- Ultra-low-dose CT coronary angiography using 128-slice dual source CT with low concentration contrast agent: initial experience.Japanese journal of radiology · 2017Trial
- High-Pitch Coronary CT Angiography at 70 kVp Adopting a Protocol of Low Injection Speed and Low Volume of Contrast Medium.Korean journal of radiologyTrial
- 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
- Evaluation of Low-kVp Low-Volume Iodinated Contrast Protocol for Coronary CT Angiography Using Retrospective ECG Gating.The Indian journal of radiology & imaging · 2021Article
- Radiation Dose and Image Quality of a High-Pitch Prospective Spiral First Approach in Coronary Computed Tomography Angiography (CCTA).Journal of cardiovascular development and disease · 2021Article
- Tube Voltage, DNA Double-Strand Breaks, and Image Quality in Coronary CT Angiography.Korean journal of radiology · 2020Article
- Effect of patient size on image quality in radiotherapy kV planar verification imaging: a phantom study.Journal of medical radiation sciences · 2020Article
- Application of Low Tube Voltage, Low-concentration Contrast Agent Using a 320-row CT in Coronary CT Angiography: Evaluation of Image Quality, Radiation Dose and Iodine Intake.Current medical science · 2020Article
- Image quality and diagnostic value of ultra low-voltage, ultra low-contrast coronary CT angiography.European radiology · 2019Article
- Reducing both radiation and contrast doses in coronary CT angiography in lean patients on a 16-cm wide-detector CT using 70 kVp and ASiR-V algorithm, in comparison with the conventional 100-kVp protocol.European radiology · 2019Article
- 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
- Computed tomography in paediatric heart disease.The British journal of radiology · 2018Review
- Influence of tube potential on quantitative coronary plaque analyses by low radiation dose computed tomography: a phantom study.The international journal of cardiovascular imaging · 2018Article
- Pediatric thoracic CT angiography at 70 kV: a phantom study to investigate the effects on image quality and radiation dose.Pediatric radiology · 2016Article
- Image Quality and Dose Reduction by Dual Source Computed Tomography Coronary Angiography: Protocol Comparison.Dose-response : a publication of International Hormesis SocietyArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The purpose of this article is to evaluate image quality and radiation dose of prospectively electrocardiogram (ECG)-triggered high-pitch coronary computed tomography angiography (CCTA) at 70 kVp and 30 mL contrast medium.One hundred fifty patients with a heart rate ≤70 beats per minute (bpm) underwent CCTA using a second-generation dual-source computed tomography (CT) scanner and were randomized into 3 groups according to tube voltage and contrast medium volume (370 mg/mL iodine concentration) (100 kVp group, 100 kVp/60 mL, n = 55; 80 kVp group, 80 kVp/60 mL, n = 44; 70 kVp group, 70 kVp/30 mL, n = 51). Objective and subjective image quality along with the effect of heart rate (HR) and body mass index (BMI) was evaluated and compared between the groups. Radiation dose was estimated for each patient.CT attenuation and image noise were higher in the 80 and 70 kVp groups than in the 100 kVp group (all P < 0.001). Signal-to-noise ratios (SNRs) and contrast-to-noise ratios (CNRs) were lower in the 70 kVp group than in the 80 and 100 kVp groups (all P < 0.05). There was no difference for subjective image quality between the groups (P > 0.05). HR did not affect subjective image quality (all P > 0.05), while patients with BMI <23 kg/m had higher image quality than patients with BMI ≥23 kg/m (P < 0.05). Compared with the 100 kVp group, the radiation dose of the 70 kVp group was reduced by 75%.In conclusion, prospectively ECG-triggered high-pitch 70 kVp/30 mL CCTA can obtain diagnostic image quality with lower radiation dose in selected patients with BMI <23 kg/m compared with 80/100 kVp/60 mL CCTA.
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