Evidence map›Paper›PMID 35802179›Full record

ArticleEuropean radiology2023

Significant improvement after training in the assessment of lateral compartments and short-axis measurements of lateral lymph nodes in rectal cancer.

Tania C Sluckin, Sanne-Marije J A Hazen, Karin Horsthuis, Doenja M J Lambregts, Regina G H Beets-Tan, Pieter J Tanis, Miranda Kusters, Dutch Lateral Node Imaging group

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In one paragraph

Article in European radiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

11 citing papers in PubMed, 19 citations in OpenAlex.

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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

8 authors at 6 institutions in 2 countries.

Tania C SluckinDepartment of Surgery, Amsterdam UMC location Vrije Universiteit Amsterdam, De Boelelaan 1117, PO Box 7057, 1007 MB, Amsterdam, the Netherlands.
Sanne-Marije J A HazenDepartment of Surgery, Amsterdam UMC location Vrije Universiteit Amsterdam, De Boelelaan 1117, PO Box 7057, 1007 MB, Amsterdam, the Netherlands.
Karin HorsthuisImaging and Biomarkers, Cancer Center Amsterdam, Amsterdam, the Netherlands.
Doenja M J LambregtsDepartment of Radiology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, the Netherlands.
Regina G H Beets-TanDepartment of Radiology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, the Netherlands.
Pieter J TanisTreatment and Quality of Life, Cancer Center Amsterdam, Amsterdam, the Netherlands.
Miranda KustersDepartment of Surgery, Amsterdam UMC location Vrije Universiteit Amsterdam, De Boelelaan 1117, PO Box 7057, 1007 MB, Amsterdam, the Netherlands. m.kusters@amsterdamumc.nl.ORCID http://orcid.org/0000-0002-2468-9186
Dutch Lateral Node Imaging group
Amsterdam University Medical Centers · NLCancer Center Amsterdam · NLErasmus MC Cancer Institute · NLEuropean Organisation for Research and Treatment of Cancer · NLThe Netherlands Cancer Institute · NLUniversity of Southern Denmark · DK

Funding

KWF Kankerbestrijding 12768
6 · The paper itself

Abstract

objectivesIn patients with rectal cancer, the size and location of lateral lymph nodes (LLNs) are correlated to increased lateral local recurrence rates. Sufficient knowledge and accuracy when measuring these features are therefore essential. The objective of this study was to evaluate the variation in measurements and anatomical classifications of LLNs before and after training.

methodsFifty-three Dutch radiologists examined three rectal MRI scans and completed a questionnaire. Presence, location, size, and suspiciousness of LLNs were reported. This assessment was repeated after a 2-hour online training by the same radiologists with the same three cases plus three additional cases. Three expert radiologists independently evaluated these 6 cases and served as the standard of reference.

resultsCorrect identification of the anatomical location improved in case 1 (62 to 77% (p = .077)) and in case 2 (46 to 72% (p = .007)) but decreased in case 3 (92 to 74%, p = .453). Compared to the first three cases, cases 4, 5, and 6 all had a higher initial consensus of 73%, 79%, and 85%, respectively. The mean absolute deviation of the short-axis measurements in cases 1-3 were closer-though not significantly-to the expert reference value after training with reduced ranges and standard deviations. Subjective determination of malignancy had a high consensus rate between participants and experts.

conclusionThough finding a high consensus rate for determining malignancy of LLNs, variation in short-axis measurements and anatomical location classifications were present and improved after training. Adequate training would support the challenges involved in evaluating LLNs appropriately. KEY POINTS: • Variation was present in the assessment of the anatomical location and short-axis size of lateral lymph nodes. • In certain cases, the accuracy of short-axis measurements and anatomical location, when compared to an expert reference value, improved after a training session. • Consensus before and after training on whether an LLN was subjectively considered to be suspicious for malignancy was high.

Indexed as

Rectal NeoplasmsHumansLymphatic MetastasisLymph Node ExcisionLymph NodesMagnetic Resonance ImagingNeoplasm StagingRectumRetrospective StudiesLateral lymph nodesMagnetic resonance imagingRectal cancer

Identifiers

PMID35802179
PMCPMC9755077
OpenAlexW4284958286

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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.