Evidence map›Paper›PMID 28258355›Full record

ArticleAbdominal radiology (New York)2017

The performance of PI-RADSv2 and quantitative apparent diffusion coefficient for predicting confirmatory prostate biopsy findings in patients considered for active surveillance of prostate cancer.

Stephanie Nougaret, Nicola Robertson, Jennifer Golia Pernicka, Nicolas Molinari, Andreas M Hötker, Behfar Ehdaie, Evis Sala, Hedvig Hricak, Hebert Alberto Vargas

Abstract read
In one paragraph

Article in Abdominal radiology (New York), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 15% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 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

9 authors at 2 institutions in 2 countries.

Stephanie NougaretINSERM, U1194, Institut de Recherche en Cancérologie de Montpellier (IRCM), Montpellier, France. stephanienougaret@free.fr.
Nicola RobertsonDepartment of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Room C278, New York, NY, 10065, USA.
Jennifer Golia PernickaDepartment of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Room C278, New York, NY, 10065, USA.
Nicolas MolinariDepartment of Statistics, UMR 5149 IMAG, CHU Montpellier, Montpellier, France.
Andreas M HötkerDepartment of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Room C278, New York, NY, 10065, USA.
Behfar EhdaieDepartment of Urology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
Evis SalaDepartment of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Room C278, New York, NY, 10065, USA.
Hedvig HricakDepartment of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Room C278, New York, NY, 10065, USA.
Hebert Alberto VargasDepartment of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Room C278, New York, NY, 10065, USA.
Memorial Sloan Kettering Cancer Center · USInstitut de Recherche en Cancérologie de Montpellier · FR

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Hongbiao Carl Lekaye · 1985 to 2026
$347.4M
NCI NIH HHS P30 CA008748
6 · The paper itself

Abstract

purposeTo assess the performance of the updated Prostate Imaging Reporting and Data System (PI-RADSv2) and the apparent diffusion coefficient (ADC) for predicting confirmatory biopsy results in patients considered for active surveillance of prostate cancer (PCA).

methodsIRB-approved, retrospective study of 371 consecutive men with clinically low-risk PCA (initial biopsy Gleason score ≤6, prostate-specific antigen <10 ng/ml, clinical stage ≤T2a) who underwent 3T-prostate MRI before confirmatory biopsy. Two independent radiologists recorded the PI-RADSv2 scores and measured the corresponding ADC values in each patient. A composite score was generated to assess the performance of combining PI-RADSv2 + ADC.

resultsPCA was upgraded on confirmatory biopsy in 107/371 (29%) patients. Inter-reader agreement was substantial (PI-RADSv2: k = 0.73; 95% CI [0.66-0.80]; ADC: r = 0.74; 95% CI [0.69-0.79]). Accuracies, sensitivities, specificities, positive predicted value and negative predicted value of PI-RADSv2 were 85, 89, 83, 68, 95 and 78, 82, 76, 58, 91% for ADC. PI-RADSv2 accuracy was significantly higher than that of ADC for predicting biopsy upgrade (p = 0.014). The combined PI-RADSv2 + ADC composite score did not perform better than PI-RADSv2 alone. Obviating biopsy in patients with PI-RADSv2 score ≤3 would have missed Gleason Score upgrade in 12/232 (5%) of patients.

conclusionPI-RADSv2 was superior to ADC measurements for predicting PCA upgrading on confirmatory biopsy.

Indexed as

AdultAgedAged, 80 and overBiopsyContrast MediaDiffusion Magnetic Resonance ImagingHumansMaleMiddle AgedNeoplasm GradingPredictive Value of TestsProstatic NeoplasmsRetrospective StudiesSensitivity and SpecificityContrast MediaBiopsyCancerConfirmatoryPI-RADSv2Prostate

Identifiers

PMID28258355
PMCPMC5537601
OpenAlexW2591977720

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.