Evidence map›Paper›PMID 31450235›Full record

ArticlePloS one2019

Prediction of significant prostate cancer in biopsy-naïve men: Validation of a novel risk model combining MRI and clinical parameters and comparison to an ERSPC risk calculator and PI-RADS.

Jan Philipp Radtke, Francesco Giganti, Manuel Wiesenfarth, Armando Stabile, Jose Marenco, Clement Orczyk, Veeru Kasivisvanathan, Joanne Nyaboe Nyarangi-Dix, Viktoria Schütz, Svenja Dieffenbacher and 10 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 3 pooled it
1.7field-weighted citation impact, top 14% 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, 3 syntheses or guidelines pooled it, 22 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

20 authors at 5 institutions in 3 countries.

Jan Philipp RadtkeDepartment of Urology, University Hospital Heidelberg, Heidelberg, Germany.ORCID 0000-0003-1009-6563
Francesco GigantiDepartment of Radiology, University College London Hospital NHS Foundation Trust, London, United Kingdom.
Manuel WiesenfarthDivision of Biostatistics, German Cancer Research Center, Heidelberg, Germany.
Armando StabileDivision of Surgery & Interventional Science, University College London, London, United Kingdom.
Jose MarencoDepartment of Urology, University College London Hospitals NHS Foundation Trust, London, United Kingdom.
Clement OrczykDivision of Surgery & Interventional Science, University College London, London, United Kingdom.
Veeru KasivisvanathanDivision of Surgery & Interventional Science, University College London, London, United Kingdom.
Joanne Nyaboe Nyarangi-DixDepartment of Urology, University Hospital Heidelberg, Heidelberg, Germany.
Viktoria SchützDepartment of Urology, University Hospital Heidelberg, Heidelberg, Germany.
Svenja DieffenbacherDepartment of Urology, University Hospital Heidelberg, Heidelberg, Germany.
Magdalena GörtzDepartment of Urology, University Hospital Heidelberg, Heidelberg, Germany.
Albrecht StenzingerInstitute of Pathology, University of Heidelberg, Heidelberg Germany.
Wilfried RothInstitute of Pathology, University of Heidelberg, Heidelberg Germany.
Alex FreemanDepartment of Pathology, University College Hospital, London, United Kingdom.
Shonit PunwaniDepartment of Radiology, University College London Hospital NHS Foundation Trust, London, United Kingdom.
David BonekampDepartment of Radiology, German Cancer Research Center, Heidelberg, Germany.
Heinz-Peter SchlemmerDepartment of Radiology, German Cancer Research Center, Heidelberg, Germany.
Markus HohenfellnerDepartment of Urology, University Hospital Heidelberg, Heidelberg, Germany.
Mark EmbertonDivision of Surgery & Interventional Science, University College London, London, United Kingdom.
Caroline M MooreDivision of Surgery & Interventional Science, University College London, London, United Kingdom.
University College London Hospitals NHS Foundation Trust · GBGerman Cancer Research Center · DEHeidelberg University · DEJohannes Gutenberg University Mainz · DEUniversity College Hospital · GB

Funding

Cancer Research UK 16463Cancer Research UK 27066Department of Health
6 · The paper itself

Abstract

backgroundRisk models (RM) need external validation to assess their value beyond the setting in which they were developed. We validated a RM combining mpMRI and clinical parameters for the probability of harboring significant prostate cancer (sPC, Gleason Score ≥ 3+4) for biopsy-naïve men. MATERIAL AND

methodsThe original RM was based on data of 670 biopsy-naïve men from Heidelberg University Hospital who underwent mpMRI with PI-RADS scoring prior to MRI/TRUS-fusion biopsy 2012-2015. Validity was tested by a consecutive cohort of biopsy-naïve men from Heidelberg (n = 160) and externally by a cohort of 133 men from University College London Hospital (UCLH). Assessment of validity was performed at fusion-biopsy by calibration plots, receiver operating characteristics curve and decision curve analyses. The RM`s performance was compared to ERSPC-RC3, ERSPC-RC3+PI-RADSv1.0 and PI-RADSv1.0 alone.

resultsSPC was detected in 76 men (48%) at Heidelberg and 38 men (29%) at UCLH. The areas under the curve (AUC) were 0.86 for the RM in both cohorts. For ERSPC-RC3+PI-RADSv1.0 the AUC was 0.84 in Heidelberg and 0.82 at UCLH, for ERSPC-RC3 0.76 at Heidelberg and 0.77 at UCLH and for PI-RADSv1.0 0.79 in Heidelberg and 0.82 at UCLH. Calibration curves suggest that prevalence of sPC needs to be adjusted to local circumstances, as the RM overestimated the risk of harboring sPC in the UCLH cohort. After prevalence-adjustment with respect to the prevalence underlying ERSPC-RC3 to ensure a generalizable comparison, not only between the Heidelberg and die UCLH subgroup, the RM`s Net benefit was superior over the ERSPC`s and the mpMRI`s for threshold probabilities above 0.1 in both cohorts.

conclusionsThe RM discriminated well between men with and without sPC at initial MRI-targeted biopsy but overestimated the sPC-risk at UCLH. Taking prevalence into account, the model demonstrated benefit compared with clinical risk calculators and PI-RADSv1.0 in making the decision to biopsy men at suspicion of PC. However, prevalence differences must be taken into account when using or validating the presented risk model.

Indexed as

Early Detection of CancerMagnetic Resonance ImagingAgedHumansImage-Guided BiopsyLondonMaleMiddle AgedNeoplasm GradingPrognosisProstateProstate-Specific AntigenProstatic NeoplasmsRisk AssessmentRisk FactorsProstate-Specific Antigen

Identifiers

PMID31450235
PMCPMC6710031
OpenAlexW2970477064

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.