Evidence map›Paper›PMID 38611692›Full record

ArticleDiagnostics (Basel, Switzerland)2024

The Doppler Perfusion Index of the Liver and the Underlying Duplex Sonography of Visceral Vessels-A Systematic and Comprehensive Evaluation of Reproducibility.

Christian Lueders, Johannes Gladitz, Georg Bauer, Christian Jenssen, Jana Belaschki, Arndt von Kirchbach, Christoph Schneider, Thomas Kiefer, Heinz Voeller, Daniel Merkel

Open access · goldAbstract read
In one paragraph

Article in Diagnostics (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-weighted citation impact, top 31% 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

3 citing papers in PubMed, 2 citations in OpenAlex.

  1. Article
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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

10 authors at 5 institutions in 1 country.

Christian LuedersKlinik am See, Rehabilitation Center for Internal Medicine, 15562 Rüdersdorf bei Berlin, Germany.
Johannes GladitzStatistik-Service Dr. Gladitz, 10119 Berlin, Germany.
Georg BauerDepartment of General Surgery, Krankenhaus Maerkisch-Oderland, 15344 Strausberg, Germany.
Christian JenssenDepartment of Internal Medicine, Krankenhaus Maerkisch-Oderland, 15344 Strausberg, Germany.ORCID 0000-0002-7008-6650
Jana BelaschkiDepartment of General Surgery, Krankenhaus Maerkisch-Oderland, 15344 Strausberg, Germany.
Arndt von KirchbachHeart Center Brandenburg, Department of Surgery, University Hospital of the Brandenburg Medical School (MHB), 16321 Bernau, Germany.
Christoph SchneiderImmanuel Klinik Rüdersdorf, University Hospital of the Brandenburg Medical School (MHB), 15562 Rüdersdorf bei Berlin, Germany.
Thomas KieferKlinik am See, Rehabilitation Center for Internal Medicine, 15562 Rüdersdorf bei Berlin, Germany.
Heinz VoellerKlinik am See, Rehabilitation Center for Internal Medicine, 15562 Rüdersdorf bei Berlin, Germany.
Daniel MerkelBrandenburg Institute of Clinical Ultrasound (BIKUS), Medical University Brandenburg, 16816 Neuruppin, Germany.ORCID 0000-0001-9615-3017
Krankenhaus Märkisch-Oderland · DEMedizinische Hochschule Brandenburg Theodor Fontane · DEStatistisches Bundesamt · DEUniversitätsklinikum Brandenburg an der Havel · DEUniversity of Potsdam · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Prior to the curative resection of colorectal carcinoma (CRC) or pancreatic ductal adenocarcinoma (PDAC), the exclusion of hepatic metastasis using cross-sectional imaging is mandatory. The Doppler perfusion index (DPI) of the liver is a promising method for detecting occult liver metastases, but the underlying visceral duplex sonography is critically viewed in terms of its reproducibility. The aim of this study was to investigate systematically the reproducibility of the measured variables, the calculated blood flow, and the DPI. Between February and September 2023, two examinations were performed on 80 subjects within a period of 0-30 days and at two previously defined quality levels, aligned to the German standards of the DEGUM. Correlation analyses were carried out using Pearson's correlation coefficient (PCC) and the intraclass correlation coefficient (ICC). The diameters, blood flow, and DPI showed a high degree of agreement (PCC of 0.9 and ICC of 0.9 for AHP). Provided that a precise standard of procedure is adhered to, the Doppler examination of AHC, AHP, and PV yields very reproducible blood flows and DPI, which is a prerequisite for a comprehensive investigation of its prognostic value for the prediction of metachronous hepatic metastasis in the context of curatively treated CRC or PDAC.

Indexed as

colorectal cancerDoppler perfusion index (DPI)hepatic metastasesinterobserver variabilityintraclass coefficient (ICC)mesenteric Dopplerpancreatic ductal adenocarcinoma (PDAC)Person’s correlation coefficient (PCC)reproducibilityvisceral Doppler

Identifiers

PMID38611692
PMCPMC11012103
OpenAlexW4394580756

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.