Evidence map›Paper›PMID 26853510›Full record

Trial reportThe British journal of radiology2016

Dose reduction in 64-row whole-body CT in multiple trauma: an optimized CT protocol with iterative image reconstruction on a gemstone-based scintillator.

Lucas L Geyer, Markus Körner, Andreas Harrieder, Fabian G Mueck, Zsuzsanna Deak, Stefan Wirth, Ulrich Linsenmaier

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The British journal of radiology, 2016. 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
4.0field-weighted citation impact, top 7% of its field
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, 28 citations in OpenAlex.

  1. Imaging strategies for patients with multiple and/or severe injuries in the resuscitation room: a systematic review and clinical practice guideline update.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2025
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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

7 authors at 4 institutions in 1 country.

Lucas L Geyer1 Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Munich, Germany.
Markus Körner2 Radiologie Muehleninsel, Landshut, Germany.
Andreas Harrieder1 Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Munich, Germany.
Fabian G Mueck1 Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Munich, Germany.
Zsuzsanna Deak1 Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Munich, Germany.
Stefan Wirth1 Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Munich, Germany.
Ulrich Linsenmaier3 Institute for Diagnostic and Interventional Radiology, HELIOS Klinikum Munich West and Munich Perlach, Munich, Germany.
LMU Klinikum · DELudwig-Maximilians-Universität München · DEMünchen Klinik · DEUniversity of Applied Sciences Landshut · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveEvaluation of potential dose savings by implementing adaptive statistical iterative reconstruction (ASiR) on a gemstone-based scintillator in a clinical 64-row whole-body CT (WBCT) protocol after multiple trauma.

methodsDose reports of 152 WBCT scans were analysed for two 64-row multidetector CT scanners (Scanners A and B); the main scanning parameters were kept constant. ASiR and a gemstone-based scintillator were used in Scanner B, and the noise index was adjusted (head: 5.2 vs 6.0; thorax/abdomen: 29.0 vs 46.0). The scan length, CT dose index (CTDI) and dose-length product (DLP) were analysed. The estimated mean effective dose was calculated using normalized conversion factors. Student's t-test was used for statistics.

resultsBoth the mean CTDI (mGy) (Scanner A: 53.8 ± 2.0, 10.3 ± 2.5, 14.4 ± 3.7; Scanner B: 48.7 ± 2.2, 7.1 ± 2.3, 9.1 ± 3.6; p < 0.001, respectively) and the mean DLP (mGy cm) (Scanner A: 1318.9 ± 167.8, 509.3 ± 134.7, 848.8 ± 254.0; Scanner B: 1190.6 ± 172.6, 354.6 ± 128.3, 561.0 ± 246.7; p < 0.001, respectively) for the head, thorax and abdomen were significantly reduced with Scanner B. There was no relevant difference in scan length. The total mean effective dose (mSv) was significantly decreased with Scanner B (24.4 ± 6.0, 17.2 ± 5.8; p < 0.001).

conclusionThe implementation of ASiR and a gemstone-based scintillator allows for significant dose savings in a clinical WBCT protocol. ADVANCES IN KNOWLEDGE: Recent technical developments can significantly reduce radiation dose of WBCT in multiple trauma. Dose reductions of 10-34% can be achieved.

Indexed as

Radiation DosageTomography Scanners, X-Ray ComputedAdultFemaleHumansImage Processing, Computer-AssistedMaleMiddle AgedMultiple TraumaRadiographic Image Interpretation, Computer-AssistedRetrospective StudiesSingle-Blind MethodTomography, X-Ray ComputedWhole Body Imaging

Identifiers

PMID26853510
PMCPMC4985483
OpenAlexW2260388147

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.