Evidence map›Paper›PMID 32770125›Full record

ArticleScientific reports2020

Spectral photon-counting CT imaging of colorectal peritoneal metastases: initial experience in rats.

Arnaud Thivolet, Salim Si-Mohamed, Pierre-Emmanuel Bonnot, Christophe Blanchet, Vahan Képénékian, Loïc Boussel, Philippe Douek, Pascal Rousset

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

15 citing papers in PubMed, 25 citations in OpenAlex.

  1. K-Edge imaging using a clinical dual-source photon-counting CT system.Journal of applied clinical medical physics · 2026
    Article
  2. Article
  3. Review
  4. Article
  5. Imaging in malignant peritoneal neoplasms.Abdominal radiology (New York) · 2025
    Review
  6. Review
  7. Review
  8. Imaging in translational cancer research.Cancer biology & medicine · 2022
    Review
  9. Advances in the management of peritoneal malignancies.Nature reviews. Clinical oncology · 2022
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
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

8 authors at 2 institutions in 1 country.

Arnaud ThivoletRadiology Department, Hospices Civils de Lyon, pavillon B, 5 Place d'Arsonval, 69003, Lyon, France. arnaud.thivolet@chu-lyon.fr.
Salim Si-MohamedRadiology Department, Hospices Civils de Lyon, pavillon B, 5 Place d'Arsonval, 69003, Lyon, France.
Pierre-Emmanuel BonnotEMR 3738, Oullins, France.
Christophe BlanchetPathology Department, Hospices Civils de Lyon, Lyon, France.
Vahan KépénékianEMR 3738, Oullins, France.
Loïc BousselRadiology Department, Hospices Civils de Lyon, pavillon B, 5 Place d'Arsonval, 69003, Lyon, France.
Philippe DouekRadiology Department, Hospices Civils de Lyon, pavillon B, 5 Place d'Arsonval, 69003, Lyon, France.
Pascal RoussetRadiology Department, Hospices Civils de Lyon, pavillon B, 5 Place d'Arsonval, 69003, Lyon, France.
Hospices Civils de Lyon · FRUniversité Claude Bernard Lyon 1 · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Computed tomography imaging plays a major role in the preoperative assessment of tumor burden by providing an accurate mapping of the distribution of peritoneal metastases (PM). Spectral Photon Counting Computed Tomography (SPCCT) is an innovative imaging modality that could overcome the current limitations of conventional CT, offering not only better spatial resolution but also better contrast resolution by allowing the discrimination of multiple contrast agents. Based on this capability, we tested the feasibility of SPCCT in the detection of PM at different time of tumor growth in 16 rats inoculated with CC531 cells using dual-contrast injection protocols in two compartments (i.e. intravenous iodine and intraperitoneal gadolinium or the reverse protocol), compared to surgery. For all peritoneal regions and for both protocols, sensitivity was 69%, specificity was 100% and accuracy was 80%, and the correlation with surgical exploration was strong (p = 0.97; p = 0.0001). No significant difference was found in terms of diagnostic performance, quality of peritoneal opacification or diagnostic quality between the 2 injection protocols. We also showed poor vascularization of peritoneal metastases by measuring low concentrations of contrast agent in the largest lesions using SPCCT, which was confirmed by immunohistochemical analyses. In conclusion, SPCCT using dual-contrast agent injection protocols in 2 compartments is a promising imaging modality to assess the extent of PM in a rat model.

Indexed as

PhotonsAnimalsCell Line, TumorColorectal NeoplasmsContrast MediaDisease Models, AnimalGadoliniumMaleNeoplasm TransplantationPeritoneal NeoplasmsRats, Inbred StrainsSensitivity and SpecificityTomography, X-Ray ComputedContrast MediaGadolinium

Identifiers

PMID32770125
PMCPMC7414131
OpenAlexW3047873723

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.