Evidence map›Paper›PMID 28378236›Full record

ArticleEmergency radiology2017

A new low-dose multi-phase trauma CT protocol and its impact on diagnostic assessment and radiation dose in multi-trauma patients.

Zlatan Alagic, Andreas Eriksson, Erika Drageryd, Sara Rezaei Motamed, Marius C Wick

Abstract readComparative Study
In one paragraph

Article in Emergency radiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–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

11 citing papers in PubMed.

  1. Review
  2. Observational
  3. Article
  4. Article
  5. Article
  6. Current Standards for and Clinical Impact of Emergency Radiology in Major Trauma.International journal of environmental research and public health · 2022
    Review
  7. Article
  8. Article
  9. Observational
  10. Article
  11. Review
4 · The record

Corrections and comments

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

5 authors.

Zlatan AlagicFunctional Unit for Musculoskeletal Radiology, Function Imaging and Physiology, Karolinska University Hospital, Karolinska Vägen Solna, SE-17176, Stockholm, Sweden.
Andreas ErikssonFunctional Unit for Musculoskeletal Radiology, Function Imaging and Physiology, Karolinska University Hospital, Karolinska Vägen Solna, SE-17176, Stockholm, Sweden.
Erika DragerydGeneral Electrics Healthcare Sverige AB, Danderyd, Sweden.
Sara Rezaei MotamedFunctional Unit for Musculoskeletal Radiology, Function Imaging and Physiology, Karolinska University Hospital, Karolinska Vägen Solna, SE-17176, Stockholm, Sweden.
Marius C WickFunctional Unit for Musculoskeletal Radiology, Function Imaging and Physiology, Karolinska University Hospital, Karolinska Vägen Solna, SE-17176, Stockholm, Sweden. marius.wick@sll.se.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeComputed tomography (CT) examinations, often using high-radiation dosages, are increasingly used in the acute management of polytrauma patients. This study compares a low-dose polytrauma multi-phase whole-body CT (WBCT) protocol on a latest generation of 16-cm detector 258-slice multi-detector CT (MDCT) scanner with advanced dose reduction techniques to a single-phase polytrauma WBCT protocol on a 64-slice MDCT scanner.

methodsBetween March and September 2015, 109 polytrauma patients (group A) underwent acute WBCT with a low-dose multi-phase WBCT protocol on a 258-slice MDCT whereas 110 polytrauma patients (group B) underwent single-phase trauma CT on a 64-slice MDCT. The diagnostic accuracy to trauma-related injuries, radiation dose, quantitative and semiquantitative image quality parameters, subjective image quality scorings, and workflow time parameters were compared.

resultsIn group A, statistically significantly more arterial injuries (p = 0.04) and arterial dissections (p = 0.002) were detected. In group A, the mean (±SD) dose length product value was 1681 ± 183 mGy*cm and markedly lower when compared to group B (p < 0.001). The SDs of the mean Houndsfield unit values of the brain, liver, and abdominal aorta were lower in group A (p < 0.001). Mean signal-to-noise ratios (SNRs) for the brain, liver, and abdominal aorta were significantly higher in group A (p < 0.001). Group A had significantly higher image quality scores for all analyzed anatomical locations (p < 0.02). However, the mean time from patient registration until completion of examination was significantly longer for group A (p < 0.001).

conclusionsThe low-dose multi-phase CT protocol improves diagnostic accuracy and image quality at markedly reduced radiation. However, due to technical complexities and surplus electronic data provided by the newer low-dose technique, examination time increases, which reduces workflow in acute emergency situations.

Indexed as

AdultContrast MediaFemaleHumansIohexolMaleMultiple TraumaRadiation DosageRetrospective StudiesTomography, X-Ray ComputedWhole Body ImagingContrast MediaIohexolASIR-VCT protocolMissed injuriesRadiation doseTrauma CTWhole-body CT angiography

Identifiers

PMID28378236
PMCPMC5596047

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Registered trials

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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.