Evidence map›Paper›PMID 20862476›Full record

ArticleEuropean radiology2011

Dose levels at coronary CT angiography--a comparison of Dual Energy-, Dual Source- and 16-slice CT.

J Matthias Kerl, Ralf W Bauer, Tobias B Maurer, Rene Aschenbach, Huedayi Korkusuz, Thomas Lehnert, Simon Deseive, Hanns Ackermann, Thomas J Vogl

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in European radiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. Review
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  4. Advanced abdominal imaging with dual energy CT is feasible without increasing radiation dose.Cancer imaging : the official publication of the International Cancer Imaging Society · 2016
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  6. Review
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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

9 authors.

J Matthias KerlDepartment of Diagnostic and Interventional Radiology, Johann Wolfgang Goethe-University, Theodor Stern Kai 7, 60590, Frankfurt, Germany. matthias.kerl@gmail.com
Ralf W Bauer
Tobias B Maurer
Rene Aschenbach
Huedayi Korkusuz
Thomas Lehnert
Simon Deseive
Hanns Ackermann
Thomas J Vogl

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo compare the dose estimates and image quality of Dual Energy CT (DECT), Dual Source CT (DSCT) and 16-slice CT for coronary CT angiography (cCTA).

methodsSixty-eight patients were examined with 16 - slice MDCT (group 1), 68 patients with DSCT (group 2) and 68 patients using DSCT in dual energy mode (DECT group 3). CT dose index volume, dose length product, effective dose, signal-to-noise, and contrast-to-noise ratio were compared. Subjective image quality was rated by two observers, blinded to technique.

resultsThe mean estimated radiation dose of all patients investigated on a 16 - slice MDCT was 12 ± 3.59 mSv, for DSCT in single energy 9.8 ± 4.77 mSv and for DECT 4.54 ± 1.87 mSv. Dose for CTA was significantly lower in group 3 compared to group 1 and 2. The image noise was significantly lower in Group 2 in comparison to group 1 and group 3. There was no significant difference in diagnostic image quality comparing DECT and DSCT.

conclusioncCTA shows better dose levels at both DECT and DSCT compared to 16-slice CT. Further, DECT delivers significantly less dose than regular DSCT or single source single energy cCTA while maintaining diagnostic image quality.

Indexed as

Body BurdenRadiation DosageAgedCoronary AngiographyFemaleHumansMaleRadiography, Dual-Energy Scanned ProjectionReproducibility of ResultsSensitivity and SpecificityTomography, X-Ray Computed

Identifiers

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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.