Evidence map›Paper›PMID 28684756›Full record

ArticleScientific reports2017

Multicolor spectral photon-counting computed tomography: in vivo dual contrast imaging with a high count rate scanner.

David P Cormode, Salim Si-Mohamed, Daniel Bar-Ness, Monica Sigovan, Pratap C Naha, Joelle Balegamire, Franck Lavenne, Philippe Coulon, Ewald Roessl, Matthias Bartels and 4 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
8.9field-weighted citation impact, top 1% 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

71 citing papers in PubMed, 142 citations in OpenAlex.

  1. Article
  2. Article
  3. Advanced X-Ray Imaging Technology.Recent results in cancer research. Fortschritte der Krebsforschung. Progres dans les recherches sur le cancer · 2026
    Review
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  12. Photon-counting computed tomography in radiology.Polish journal of radiology · 2024
    Review
  13. Article
  14. Review
  15. Review
  16. Review
  17. Review
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  19. Review
  20. Nanomaterial-based contrast agents.Nature reviews. Methods primers · 2023
    Article

11 more citing papers are in PubMed but not listed here.

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

14 authors at 6 institutions in 4 countries.

David P CormodeDepartment of Radiology, University of Pennsylvania, Philadelphia, PA, USA.ORCID 0000-0002-8391-9500
Salim Si-MohamedRadiology Department, Hospices Civils de Lyon, Lyon, France.ORCID 0000-0003-0314-4010
Daniel Bar-NessRadiology Department, Hospices Civils de Lyon, Lyon, France.
Monica SigovanRadiology Department, Hospices Civils de Lyon, Lyon, France.
Pratap C NahaDepartment of Radiology, University of Pennsylvania, Philadelphia, PA, USA.
Joelle BalegamireLAGEP Laboratory, University Lyon 1 Claude Bernard, Lyon, France.
Franck LavenneCERMEP, Lyon, France.
Philippe CoulonCT Clinical Science, Philips, Suresnes, France.
Ewald RoesslPhilips GmbH Innovative Technologies, Research Laboratories, Hamburg, Germany.
Matthias BartelsPhilips GmbH Innovative Technologies, Research Laboratories, Hamburg, Germany.
Michal RokniGlobal Advanced Technologies, CT, Philips, Haifa, Israel.
Ira BlevisGlobal Advanced Technologies, CT, Philips, Haifa, Israel.
Loic BousselRadiology Department, Hospices Civils de Lyon, Lyon, France.
Philippe DouekRadiology Department, Hospices Civils de Lyon, Lyon, France. douek@creatis.insa-lyon.fr.
Université Claude Bernard Lyon 1 · FRPhilips (Germany) · DEPhilips (Israel) · ILUniversity of Pennsylvania · USCentre d'Exploration et de Recherche Médicale par Emission de Positons · FRPhilips (France) · FR

Funding

Biodegradable polymetal nanoparticle CT contrast agents for vascular imagingR01HL131557 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI CORMODE, DAVID PETER · 2016 to 2020
$2.0M
NHLBI NIH HHS R01 HL131557
6 · The paper itself

Abstract

A new prototype spectral photon-counting computed tomography (SPCCT) based on a modified clinical CT system has been developed. SPCCT analysis of the energy composition of the transmitted x-ray spectrum potentially allows simultaneous dual contrast agent imaging, however, this has not yet been demonstrated with such a system. We investigated the feasibility of using this system to distinguish gold nanoparticles (AuNP) and an iodinated contrast agent. The contrast agents and calcium phosphate were imaged in phantoms. Conventional CT, gold K-edge, iodine and water images were produced and demonstrated accurate discrimination and quantification of gold and iodine concentrations in a phantom containing mixtures of the contrast agents. In vivo experiments were performed using New Zealand White rabbits at several times points after injections of AuNP and iodinated contrast agents. We found that the contrast material maps clearly differentiated the distributions of gold and iodine in the tissues allowing quantification of the contrast agents' concentrations, which matched their expected pharmacokinetics. Furthermore, rapid, repetitive scanning was done, which allowed measurement of contrast agent kinetics with high temporal resolution. In conclusion, a clinical scale, high count rate SPCCT system is able to discriminate gold and iodine contrast media in different organs in vivo.

Indexed as

AnimalsCalcium PhosphatesContrast MediaFemaleGoldIopamidolMaleMetal NanoparticlesPhantoms, ImagingRabbitsTomography, X-Ray Computedcalcium phosphateCalcium PhosphatesContrast MediaGoldiomeprolIopamidol

Identifiers

PMID28684756
PMCPMC5500581
OpenAlexW2724672945

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.