Evidence map›Paper›PMID 31748858›Full record

ArticleEuropean radiology2020

Update of national diagnostic reference levels for adult CT in Switzerland and assessment of radiation dose reduction since 2010.

Christoph Aberle, Nick Ryckx, Reto Treier, Sebastian Schindera

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Article in European radiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  9. Assessment of radiographers' knowledge about radiation doses and DRLs in computed tomography departments in Jeddah, Saudi Arabia: A cross-sectional study.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2023
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4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Christoph AberleDepartment of Radiology, University Hospital Basel, University of Basel, Petersgraben 4, 4031, Basel, Switzerland. christoph.aberle@usb.ch.ORCID http://orcid.org/0000-0002-8763-4801
Nick RyckxDepartment of Diagnostic and Interventional Radiology, Lausanne University Hospital, Lausanne, Switzerland.
Reto TreierRadiation Protection Division, Federal Office of Public Health, Bern, Switzerland.
Sebastian SchinderaInstitute of Radiology, Cantonal Hospital of Aarau, Aarau, Switzerland.

Funding

Bundesamt für Gesundheit 16.001593
6 · The paper itself

Abstract

objectivesTo update the national diagnostic reference levels (DRLs) for adult CT in Switzerland using dose management software and to compare them to the previous Swiss DRLs from 2010.

methodsCT dose data from 14 radiological institutes with a total of 50 CT scanners were collected with locally installed dose management software between 2014 and 2017. Data were assigned to 15 defined master protocols. Data cleaning steps were developed and adjusted individually for each participating institute and protocol. The DRLs for each master protocol were calculated as the 75th percentile of the distribution of the median volume computed tomography dose index (CTDI

resultsIn total, 220,269 CT exams were available after data cleaning. Updated DRLs showed a clear trend towards lower doses compared with previous DRLs. The average relative change in the DRLs for CTDI

conclusionsThe updated national DRLs are substantially lower than the previous values from 2010, demonstrating technological progress and the efforts of the radiological community to lower CT radiation exposure. KEY POINTS: • Dose management software allows the establishment of DRLs based on big data. • Updated Swiss DRLs for adult CT are substantially lower compared with those from 2010. • Swiss DRLs are low compared with other national DRLs.

Indexed as

AlgorithmsAdultHumansRadiation DosageRadiation ExposureReference ValuesSoftwareSwitzerlandTomography, X-Ray ComputedRadiation monitoringRadiation protectionSwitzerlandTomography, X-ray computed

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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.