Evidence map›Paper›PMID 26356551›Full record

ReviewDeutsches Arzteblatt international2015

The role of PET and PET-CT scanning in assessing response to neoadjuvant therapy in esophageal carcinoma.

Milly Schröer-Günther, Fülöp Scheibler, Robert Wolff, Marie Westwood, Brigitta Baumert, Stefan Lange

Open access · greenAbstract readComparative StudyEvaluation StudyMulticenter Study
In one paragraph

Review in Deutsches Arzteblatt international, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.3field-weighted citation impact, top 33% 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

6 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Estimation of esophageal involvement length in esophagogastric junction tumors using PET-CT.Esophagus : official journal of the Japan Esophageal Society · 2026
    Article
  3. Evaluation of prognostic risk factors of triple-negative breast cancer withFrontiers in cell and developmental biology · 2024
    Article
  4. Article
  5. Article
  6. 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

6 authors at 1 institution in 1 country.

Milly Schröer-GüntherInstitute for Quality and Efficiency in Health Care (IQWiG), Köln, Department of Radiation-Oncology, MediClin Robert Janker Clinic & Cooperation Unit Neurooncology, University of Bonn Medical Center, and Department of Radiation-Oncology (MAASTRO) & GROW (School for Oncology), Maastricht University MC.
Fülöp Scheibler
Robert Wolff
Marie Westwood
Brigitta Baumert
Stefan Lange
Institute for Quality and Efficiency in Health Care · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe response to neoadjuvant (radio-)chemotherapy for esophageal carcinoma is often assessed with the aid of positron-emission tomography (PET), either alone or in combination with computed tomography (PET-CT). In this review, we discuss the diagnostic validity and clinical benefit of these imaging techniques.

methodsWe systematically searched the Medline, Embase, and Cochrane Library databases for randomized controlled trials (RCTs) and controlled clinical trials (CCTs) comparing PET-CT with conventional techniques such as endosonography and CT. We then determined the diagnostic validity of these methods on the basis of information from published systematic reviews, updated with further information from more recent primary studies.

resultsWe did not find any RCTs that addressed the question of the patient-relevant benefit of PET-CT. We found 20 studies of diagnostic methods, carried out on a total of 854 patients, of whom 82.2% were male. These studies had a high potential for bias. In two of them, PET-CT was directly compared with endosonography or CT. Estimates of sensitivity and specificity varied widely across studies. 54% of all patients (median value across studies) had no histopathological response to therapy at the end of treatment. Taking a reduction of the standard uptake value (SUV) by at least 35% as a threshold criterion, we found that the median negative predictive value of PET across all studies was 86.5.

conclusionThere is no robust evidence for a patient-relevant benefit of PET and PET-CT in patients with esophageal carcinoma. PET could potentially be used to distinguish treatment responders from non-responders after the first cycle of treatment. RCTs with patient-relevant endpoints will be needed in order to determine whether this is useful.

Indexed as

AdultAgedChemoradiotherapy, AdjuvantEsophageal NeoplasmsFemaleHumansMaleMiddle AgedNeoadjuvant TherapyPositron-Emission TomographyPositron Emission Tomography Computed TomographyPrevalencePrognosisReproducibility of ResultsRisk AssessmentSensitivity and Specificity

Identifiers

PMID26356551
PMCPMC4570959
OpenAlexW2423239987

What OpenQuestion holds

Textmetadata
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.