Evidence map›Paper›PMID 34184127›Full record

SynthesisInternational journal of colorectal disease2021

Apparent diffusion coefficient cannot discriminate metastatic and non-metastatic lymph nodes in rectal cancer: a meta-analysis.

Alexey Surov, Hans-Jonas Meyer, Maciej Pech, Maciej Powerski, Jasan Omari, Andreas Wienke

Open access · hybridAbstract readMeta-Analysis
In one paragraph

Synthesis in International journal of colorectal disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
0.9field-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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
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

6 authors at 3 institutions in 1 country.

Alexey SurovDepartment of Radiology and Nuclear Medicine, Otto-von-Guericke University Magdeburg, Magdeburg, Germany. Alexey.Surov@med.ovgu.de.ORCID http://orcid.org/0000-0002-9273-3943
Hans-Jonas MeyerDepartment of Diagnostic and Interventional Radiology, University of Leipzig, Leipzig, Germany.ORCID http://orcid.org/0000-0001-8489-706X
Maciej PechDepartment of Radiology and Nuclear Medicine, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.
Maciej PowerskiDepartment of Radiology and Nuclear Medicine, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.
Jasan OmariDepartment of Radiology and Nuclear Medicine, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.
Andreas WienkeInstitute of Medical Epidemiology, Martin-Luther-University Halle-Wittenberg, Biostatistics, and Informatics, Halle (Saale), Germany.
Otto-von-Guericke-Universität Magdeburg · DELeipzig University · DEMartin Luther University Halle-Wittenberg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOur aim was to provide data regarding use of diffusion-weighted imaging (DWI) for distinguishing metastatic and non-metastatic lymph nodes (LN) in rectal cancer.

methodsMEDLINE library, EMBASE, and SCOPUS database were screened for associations between DWI and metastatic and non-metastatic LN in rectal cancer up to February 2021. Overall, 9 studies were included into the analysis. Number, mean value, and standard deviation of DWI parameters including apparent diffusion coefficient (ADC) values of metastatic and non-metastatic LN were extracted from the literature. The methodological quality of the studies was investigated according to the QUADAS-2 assessment. The meta-analysis was undertaken by using RevMan 5.3 software. DerSimonian, and Laird random-effects models with inverse-variance weights were used to account the heterogeneity between the studies. Mean DWI values including 95% confidence intervals were calculated for metastatic and non-metastatic LN.

resultsADC values were reported for 1376 LN, 623 (45.3%) metastatic LN, and 754 (54.7%) non-metastatic LN. The calculated mean ADC value (× 10

conclusionNo reliable ADC threshold can be recommended for distinguishing of metastatic and non-metastatic LN in rectal cancer.

Indexed as

Lymph NodesRectal NeoplasmsDiffusion Magnetic Resonance ImagingHumansLymphatic MetastasisSensitivity and SpecificityADCDWILymph nodeRectal cancer

Identifiers

PMID34184127
PMCPMC8426255
OpenAlexW3176498668

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.