Evidence map›Paper›PMID 25981379›Full record

ArticleLa Radiologia medica2015

Dose levels and image quality of second-generation 128-slice dual-source coronary CT angiography in clinical routine.

Julian L Wichmann, Xiaohan Hu, Alexander Engler, J Matthias Kerl, Martin Beeres, Claudia Frellesen, Wolfgang Luboldt, Thomas J Vogl, Ralf W Bauer, Thomas Lehnert

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Article in La Radiologia medica, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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0cells of the map it votes in
1citing papers in PubMed
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1 · What the graph read from it

What it found

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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.

2 · The registry

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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

1 citing paper in PubMed.

  1. Review
4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Julian L WichmannDepartment of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany. docwichmann@gmail.com.
Xiaohan HuDepartment of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany.
Alexander EnglerDepartment of Cranio-Maxillofacial and Plastic Facial Surgery, University Hospital Frankfurt, Frankfurt, Germany.
J Matthias KerlDepartment of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany.
Martin BeeresDepartment of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany.
Claudia FrellesenDepartment of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany.
Wolfgang LuboldtDepartment of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany.
Thomas J VoglDepartment of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany.
Ralf W BauerDepartment of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany.
Thomas LehnertDepartment of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo compare radiation exposure and image quality of second-generation 128-slice dual-source CT (DSCT) coronary angiography (cCTA) protocols. MATERIALS AND

methodsWe retrospectively analyzed data from four groups with 25 patients, each examined by one of the following DSCT cCTA protocols: prospectively ECG-gated high-pitch (group 1) or sequential (group 2) acquisition, retrospectively ECG-gated acquisition in dual-energy (DECT, group 3) or dual-source (group 4) mode. CT dose index volume, dose length product, estimated radiation dose, contrast-to-noise- and signal-to-noise-ratios were compared. Subjective image quality was rated by two observers blinded to the protocols.

resultsHigh-pitch DSCT showed a mean estimated radiation dose of 1.27 ± 0.62 mSv, significantly (p < 0.01) lower than sequential (2.04 ± 0.94 mSv), dual-energy (3.97 ± 1.29 mSv) or dual-source (8.11 ± 4.95 mSv) acquisition. Image noise showed no statistical difference (p > 0.91), ranging from 15.2 ± 4.4 (group 2) up to 24.5 ± 22.0 (group 4). Each protocol showed diagnostic image quality in at least 98.1 % of evaluated coronary segments without significant differences (p > 0.05).

conclusionsProspectively ECG-gated DSCT protocols enable cCTA with significant dose reduction and consistently diagnostic image quality. In patients requiring retrospectively ECG-gated DSCT for functional analysis or due to arrhythmia, dual-energy mode should be preferred over dual-source mode as it significantly decreases estimated dose without compromising image quality.

Indexed as

Image EnhancementRadiation DosageAgedCoronary AngiographyHumansRetrospective StudiesTomography, X-Ray ComputedCoronary computed tomography angiographyDual-source computed tomography angiographyHigh-pitch spiral acquisitionMultidetector-computed tomographyRadiation dose

Identifiers

PMID25981379

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