Evidence map›Paper›PMID 26959611›Full record

ArticleThe British journal of radiology2016

Intraductal papillary mucinous neoplasms of the pancreas: radiological predictors of malignant transformation and the introduction of bile duct dilation to current guidelines.

Albert Strauss, Matthew Birdsey, Stefan Fritz, Bogata D Schwarz-Bundy, Frank Bergmann, Thilo Hackert, Hans-Ullrich Kauczor, Lars Grenacher, Miriam Klauss

Open access · greenAbstract read
In one paragraph

Article in The British journal of radiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Imaging modalities for characterising focal pancreatic lesions.The Cochrane database of systematic reviews · 2017
    Pooled it
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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

9 authors at 2 institutions in 1 country.

Albert Strauss1 Radiology Department, University Hospital Heidelberg, Heidelberg, Germany.
Matthew Birdsey1 Radiology Department, University Hospital Heidelberg, Heidelberg, Germany.
Stefan Fritz2 Surgery Department, University Hospital Heidelberg, Heidelberg, Germany.
Bogata D Schwarz-Bundy1 Radiology Department, University Hospital Heidelberg, Heidelberg, Germany.
Frank Bergmann3 Institute of Pathology Heidelberg, University Hospital of Heidelberg, Heidelberg, Germany.
Thilo Hackert2 Surgery Department, University Hospital Heidelberg, Heidelberg, Germany.
Hans-Ullrich Kauczor1 Radiology Department, University Hospital Heidelberg, Heidelberg, Germany.
Lars Grenacher4 Diagnostic Imaging Center, Diagnostik Muenchen, München, Germany.
Miriam Klauss1 Radiology Department, University Hospital Heidelberg, Heidelberg, Germany.
University Hospital Heidelberg · DEHeidelberg University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the current guidelines as a model to predict malignancy and to determine further radiological predictors of malignancy in intraductal papillary mucinous neoplasms (IPMNs).

methods384 patients who had undergone a pancreatic operation with the pathological diagnosis of IPMN as well as applicable pre-operative imaging (CT/MRI) were included in the study. Images were evaluated retrospectively in consensus by two radiologists, using a standardized checklist. Descriptive statistics, binary logistic regression and receiver operator curve analysis were performed to assess the International Consensus Guidelines and other radiological predictors of clinical malignancy (defined as carcinoma in situ and invasive carcinoma).

resultsThe best independent predictors of malignancy (n = 191) were solid components [odds ratio (OR) 3.98], parenchymal atrophy with main pancreatic duct dilation 5-9 mm (OR: 5.1) and common bile duct (CBD) dilation (OR: 31.26). >96% of all cases with CBD dilation were malignant IPMNs (positive-predictive value 96.4%; negative-predictive value 63.1%). Analysis of the current guidelines showed a diagnostic improvement with the addition of CBD dilation on determining the malignancy of IPMNs (sensitivity 82.2%/86.9%; specificity 72.7%/74.6%). Subanalysis of branch duct intraductal papillary mucinous neoplasms (BD-IPMNs; n = 168) also resulted in a diagnostic improvement with the addition of CBD dilation (sensitivity 28.6%/45.2%; specificity 92.9%/92.1%). The best independent predictors of malignancy for BD-IPMNs were parenchymal atrophy (OR: 4.00) and CBD dilation (OR: 29.3). Frequency analysis revealed that even small BD-IPMNs had already undergone malignant transformation (≤1 cm: 15%; 1-2 cm: 26%; 2-3 cm: 20%) with about 10% of those having a dilated bile duct.

conclusionCBD dilation was a significant positive predictor of malignancy in IPMNs regardless of their size. ADVANCES IN KNOWLEDGE: Introduction of CBD dilation as a radiological predictor for malignancy might increase the diagnostic accuracy of current imaging-based guidelines.

Indexed as

Adenocarcinoma, MucinousAdultAgedAged, 80 and overBile DuctsCell Transformation, NeoplasticCholangiographyCholangiopancreatography, Magnetic ResonanceConstriction, PathologicFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedObserver VariationPancreas

Identifiers

PMID26959611
PMCPMC4985463
OpenAlexW2294139631

What OpenQuestion holds

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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.