Evidence map›Paper›PMID 31882698›Full record

ArticleScientific reports2019

Feasibility of improving vascular imaging in the presence of metallic stents using spectral photon counting CT and K-edge imaging.

Monica Sigovan, Salim Si-Mohamed, Daniel Bar-Ness, Julia Mitchell, Jean-Baptiste Langlois, Philippe Coulon, Ewald Roessl, Ira Blevis, Michal Rokni, Gilles Rioufol and 2 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

27 citing papers in PubMed, 65 citations in OpenAlex.

  1. Review
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  3. Clinical application of cardiac computed tomography in cardiomyopathy.The international journal of cardiovascular imaging · 2026
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  8. Impact of the confluence of cardiac motion and high spatial resolution on performance of ECG-gated imaging with an investigational photon-counting CT system: A phantom study.Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB) · 2023
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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

12 authors at 8 institutions in 3 countries.

Monica SigovanHospices Civils de Lyon, Louis Pradel Cardiology Hospital, Lyon, France.
Salim Si-MohamedHospices Civils de Lyon, Louis Pradel Cardiology Hospital, Lyon, France. salim.si-mohamed@chu-lyon.fr.
Daniel Bar-NessUniv Lyon, INSA-Lyon, Université Claude Bernard Lyon 1, UJM-Saint Etienne, CNRS, Inserm, CREATIS UMR 5220, U1206, Lyon, France.
Julia MitchellCardiac surgery, Hospices Civils de Lyon, Lyon, France.
Jean-Baptiste LangloisCERMEP Centre d'imagerie du vivant, Lyon, France.
Philippe CoulonCT Clinical Science, Philips, Suresnes, France.
Ewald RoesslPhilips Research Laboratories, Hamburg, Germany.
Ira BlevisGlobal Advanced Technologies, CT, Philips, Haifa, Israel.
Michal RokniGlobal Advanced Technologies, CT, Philips, Haifa, Israel.
Gilles RioufolHospices Civils de Lyon, Louis Pradel Cardiology Hospital, Lyon, France.
Philippe DouekHospices Civils de Lyon, Louis Pradel Cardiology Hospital, Lyon, France.
Loic BousselHospices Civils de Lyon, Louis Pradel Cardiology Hospital, Lyon, France.
Hôpital Louis Pradel · FRPhilips (Israel) · ILCentre de Recherche en Acquisition et Traitement de l'Image pour la Santé · FRCentre d'Exploration et de Recherche Médicale par Emission de Positons · FRHospices Civils de Lyon · FRPhilips (France) · FRPhilips (Germany) · DEUniversité Claude Bernard Lyon 1 · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Correct visualization of the vascular lumen is impaired in standard computed tomography (CT) because of blooming artifacts, increase of apparent size, induced by metallic stents and vascular calcifications. Recently, due to the introduction of photon-counting detectors in the X-ray imaging field, a new prototype spectral photon-counting CT (SPCCT) based on a modified clinical CT system has been tested in a feasibility study for improving vascular lumen delineation and visualization of coronary stent architecture. Coronary stents of different metal composition were deployed inside plastic tubes containing hydroxyapatite spheres to simulate vascular calcifications and in the abdominal aorta of one New Zealand White (NZW) rabbit. Imaging was performed with an SPCCT prototype, a dual-energy CT system, and a conventional 64-channel CT system (B64). We found the apparent widths of the stents significantly smaller on SPCCT than on the other two systems in vitro (p < 0.01), thus closer to the true size. Consequently, the intra-stent lumen was significantly larger on SPCCT (p < 0.01). In conclusion, owing to the increased spatial resolution of SPCCT, improved lumen visualization and delineation of stent metallic mesh is possible compared to dual-energy and conventional CT.

Indexed as

StentsAnimalsArtifactsCoronary AngiographyCoronary VesselsFeasibility StudiesHumansMaleMetalsRabbitsReproducibility of ResultsTomography, X-Ray ComputedMetals

Identifiers

PMID31882698
PMCPMC6934567
OpenAlexW2997671962

What OpenQuestion holds

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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.