ArticleEuropean radiology2021
Multicentric study of patients receiving 50 or 100 mSv in a single day through CT imaging-frequency determination and imaging protocols involved.
Article in European radiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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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.
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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.
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Who cites it
10 citing papers in PubMed, 31 citations in OpenAlex.
- Cumulative dose in pediatric CT "frequent flyers": cohort results and risk review.Pediatric radiology · 2026Article
- Cumulative radiation exposure from multimodality recurrent imaging of CT, fluoroscopically guided intervention, and nuclear medicine.European radiology · 2024Article
- Lattice engineering for stabilized black FAPbIScience advances · 2023Article
- Strategies for Dose Optimization: Views From Health Care Systems.Journal of the American College of Radiology : JACR · 2022Article
- Organ doses and cancer risk assessment in patients exposed to high doses from recurrent CT exams.European journal of radiology · 2022Article
- Radiation protection perspective to recurrent medical imaging: what is known and what more is needed?The British journal of radiology · 2021Review
- Cumulative radiation doses from recurrent PET-CT examinations.The British journal of radiology · 2021Review
- Radiation risk issues in recurrent imaging.The British journal of radiology · 2021Review
- The cumulative radiation dose paradigm in pediatric imaging.The British journal of radiology · 2021Review
- Contemporary issues in radiation protection in medical imaging: introductory editorial.The British journal of radiology · 2021Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo assess the magnitude and characterization of CT imaging protocols of patients receiving 50 or 100 mSv in a single day.
methodsIn this multicentric retrospective study covering up to 279 hospitals from January 2015 to December 2019, the effective dose (E) as estimated by dose management system from dose length product of patients was filtered and grouped into per-day dose bands (≤ 20, > 20-50, > 50-70, > 70-100, > 100-200, > 200 mSv). Information on patient's age and imaging protocol was noted. The data were analyzed to determine the frequency of occurrence in each dose band. Top 20 CT imaging protocols that led to patients with a dose of ≥ 50 mSv in a single acquisition were identified and their relative frequency was estimated.
resultsA total of approx. 4.3 million (4,283,738) CT exams were performed in approx. 3.9 million (3,880,524) patient-days indicating 9.41% had more than one CT exam in a single day. There were 31,058 (0.8%) patient-days with ≥ 50 mSv and 1191 (0.03%) with ≥ 100 mSv. Nearly 1/3
conclusionsIn the first study of its kind, we report that patients with 50 mSv+ in a single day or a single exam are not rare. The information on imaging protocols leading to such doses and their frequency has been provided to help develop dose management strategies. KEY POINTS: • Our study of 4,283,738 CT exams performed in 3,880,524 patient-days indicates 0.8% with 50 mSv+ and 0.03% with 100 mSv+ in a single day. • A total of 9.41% underwent more than one CT exam in a single day; nearly 1/3
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