Evidence map›Paper›PMID 27391860›Full record

ArticleJournal of magnetic resonance imaging : JMRI2017

Accuracy and agreement of PIRADSv2 for prostate cancer mpMRI: A multireader study.

Matthew D Greer, Anna M Brown, Joanna H Shih, Ronald M Summers, Jamie Marko, Yan Mee Law, Sandeep Sankineni, Arvin K George, Maria J Merino, Peter A Pinto and 2 more

Open access · greenAbstract readComparative StudyEvaluation StudyMulticenter Study
In one paragraph

Article in Journal of magnetic resonance imaging : JMRI, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
93citing papers in PubMed, 2 pooled it
30.7field-weighted citation impact, top 1% 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

93 citing papers in PubMed, 2 syntheses or guidelines pooled it, 210 citations in OpenAlex.

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33 more citing papers are in PubMed but not listed here.

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

12 authors at 6 institutions in 2 countries.

Matthew D GreerMolecular Imaging Program, NCI, NIH, Bethesda, Maryland, USA.
Anna M BrownMolecular Imaging Program, NCI, NIH, Bethesda, Maryland, USA.
Joanna H ShihBiometric Research Program, NCI, NIH, Bethesda, Maryland, USA.
Ronald M SummersNational Institutes of Health Clinical Center, Imaging Biomarkers and Computer-Aided Diagnosis Laboratory, Radiology and Imaging Sciences, Bethesda, Maryland, USA.
Jamie MarkoWalter Reed National Military Medical Center, Bethesda, Maryland, USA.
Yan Mee LawSingapore General Hospital, Singapore.
Sandeep SankineniMolecular Imaging Program, NCI, NIH, Bethesda, Maryland, USA.
Arvin K GeorgeUrologic Oncology Branch, NCI, NIH, Bethesda, Maryland, USA.
Maria J MerinoLaboratory of Pathology, NCI, NIH, Bethesda, Maryland, USA.
Peter A PintoUrologic Oncology Branch, NCI, NIH, Bethesda, Maryland, USA.
Peter L ChoykeMolecular Imaging Program, NCI, NIH, Bethesda, Maryland, USA.
Baris TurkbeyMolecular Imaging Program, NCI, NIH, Bethesda, Maryland, USA.
National Institutes of Health · USCleveland Clinic Lerner College of Medicine · USNational Institutes of Health Clinical Center · USSingapore General Hospital · SGWalter Reed National Military Medical Center · USZimmer Biomet (United States) · US

Funding

Prostate SectionZIABC011081 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI PINTO, PETER · 2009 to 2025
$15.2M
Prostate Cancer ImagingZ01BC010655 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI CHOYKE, PETER L · 2005 to 2008
$2.1M
miRNA profiling of prostate cancer in young and older male patientsZIABC011406 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI MERINO, MARIA · 2011 to 2023
$1.8M
SURGICAL PATHOLOGYZ01SC000853 · SC · DIVISION OF CLINICAL SCIENCES - NCI · PI MERINO NEUMANN, MARIA · 1996 to 2008
$823k
Prostate SectionZ01BC011081 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI PINTO, PETER · 2008 to 2008
$99k
Computer Aided Detection for Radiologic ImagesZIACL040004 · CLC · CLINICAL CENTER · PI SUMMERS, RONALD M. · 2009 to 2025
$0k
Intramural NIH HHS Z01 BC010655Intramural NIH HHS Z01 BC011081Intramural NIH HHS Z01 SC000853
6 · The paper itself

Abstract

purposeMultiparametric MRI (mpMRI) improves the detection of clinically significant prostate cancer, but is limited by interobserver variation. The second version of theProstate Imaging Reporting and Data System (PIRADSv2) was recently proposed as a standard for interpreting mpMRI. To assess the performance and interobserver agreement of PIRADSv2 we performed a multi-reader study with five radiologists of varying experience. MATERIALS AND

methodsFive radiologists (n = 2 prostate dedicated, n = 3 general body) blinded to clinicopathologic results detected and scored lesions on prostate mpMRI using PIRADSv2. The endorectal coil 3 Tesla MRI included T2W, diffusion-weighted imaging (apparent diffusion coefficient, b2000), and dynamic contrast enhancement. Thirty-four consecutive patients were included. Results were correlated with radical prostatectomy whole-mount histopathology produced with patient-specific three-dimensional molds. An index lesion was defined on pathology as the lesion with highest Gleason score or largest volume if equivalent grades. Average sensitivity and positive predictive values (PPVs) for all lesions and index lesions were determined using generalized estimating equations. Interobserver agreement was evaluated using index of specific agreement.

resultsAverage sensitivity was 91% for detecting index lesions and 63% for all lesions across all readers. PPV was 85% for PIRADS ≥ 3 and 90% for PIRADS ≥ 4. Specialists performed better only for PIRADS ≥ 4 with sensitivity 90% versus 79% (P = 0.01) for index lesions. Index of specific agreement among readers was 93% for the detection of index lesions, 74% for the detection of all lesions, and 85% for scoring index lesions, and 58% for scoring all lesions.

conclusionBy using PIRADSv2, general body radiologists and prostate specialists can detect high-grade index prostate cancer lesions with high sensitivity and agreement. LEVEL OF EVIDENCE: 1 J. Magn. Reson. Imaging 2017;45:579-585.

Indexed as

Practice Guidelines as TopicDiffusion Magnetic Resonance ImagingHumansImage Interpretation, Computer-AssistedMaleObserver VariationProstatic NeoplasmsRadiologyReproducibility of ResultsSensitivity and SpecificityUnited Statesinter-observer agreementmulti-reader studyPIRADSv2prostate cancerprostate mpMRI

Identifiers

PMID27391860
PMCPMC7900895
OpenAlexW2477375111

What OpenQuestion holds

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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.