Evidence map›Paper›PMID 28792802›Full record

ArticleAJR. American journal of roentgenology2017

Utility of BI-RADS Assessment Category 4 Subdivisions for Screening Breast MRI.

Roberta M Strigel, Elizabeth S Burnside, Mai Elezaby, Amy M Fowler, Frederick Kelcz, Lonie R Salkowski, Wendy B DeMartini

Abstract read
In one paragraph

Article in AJR. American journal of roentgenology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
–field-weighted citation impact
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

40 citing papers in PubMed.

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  8. Nomogram for reducing unnecessary biopsies of breast lesions based on MRI and clinical features: a multi-center retrospective cohort study.Cancer imaging : the official publication of the International Cancer Imaging Society · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Roberta M Strigel1 Department of Radiology, University of Wisconsin, 600 Highland Ave, Madison, WI 53792-3252.
Elizabeth S Burnside1 Department of Radiology, University of Wisconsin, 600 Highland Ave, Madison, WI 53792-3252.
Mai Elezaby1 Department of Radiology, University of Wisconsin, 600 Highland Ave, Madison, WI 53792-3252.
Amy M Fowler1 Department of Radiology, University of Wisconsin, 600 Highland Ave, Madison, WI 53792-3252.
Frederick Kelcz1 Department of Radiology, University of Wisconsin, 600 Highland Ave, Madison, WI 53792-3252.
Lonie R Salkowski1 Department of Radiology, University of Wisconsin, 600 Highland Ave, Madison, WI 53792-3252.
Wendy B DeMartini1 Department of Radiology, University of Wisconsin, 600 Highland Ave, Madison, WI 53792-3252.

Funding

UW COMPREHENSIVE CANCER CENTER SUPPORTP30CA014520 · NCI · UNIVERSITY OF WISCONSIN-MADISON · PI AMY TRENTHAM-DIETZ · 1985 to 2026
$142.6M
Institutional Clinical and Translational Science AwardUL1TR000427 · NCATS · UNIVERSITY OF WISCONSIN-MADISON · PI DREZNER, MARC KENNETH · 2012 to 2016
$32.2M
TrainingU54AI117924 · NIAID · UNIVERSITY OF WISCONSIN-MADISON · PI CRAVEN, MARK W. · 2014 to 2018
$11.3M
Mentoring And Research In Patient-Oriented Breast Cancer DiagnosisK24CA194251 · NCI · UNIVERSITY OF WISCONSIN-MADISON · PI BURNSIDE, ELIZABETH S · 2015 to 2019
$963k
NCATS NIH HHS UL1 TR000427NCI NIH HHS K24 CA194251NCI NIH HHS P30 CA014520NIAID NIH HHS U54 AI117924
6 · The paper itself

Abstract

objectiveBI-RADS for mammography and ultrasound subdivides category 4 assessments by likelihood of malignancy into categories 4A (> 2% to ≤ 10%), 4B (> 10% to ≤ 50%), and 4C (> 50% to < 95%). Category 4 is not subdivided for breast MRI because of a paucity of data. The purpose of the present study is to determine the utility of categories 4A, 4B, and 4C for MRI by calculating their positive predictive values (PPVs) and comparing them with BI-RADS-specified rates of malignancy for mammography and ultrasound. MATERIALS AND

methodsAll screening breast MRI examinations performed from July 1, 2010, through June 30, 2013, were included in this study. We identified in medical records prospectively assigned MRI BI-RADS categories, including category 4 subdivisions, which are used routinely in our practice. Benign versus malignant outcomes were determined by pathologic analysis, findings from 12 months or more clinical or imaging follow-up, or a combination of these methods. Distribution of BI-RADS categories and positive predictive value level 2 (PPV2; based on recommendation for tissue diagnosis) for categories 4 (including its subdivisions) and 5 were calculated.

resultsOf 860 screening breast MRI examinations performed for 566 women (mean age, 47 years), 82 with a BI-RADS category 4 assessment were identified. A total of 18 malignancies were found among 84 category 4 and 5 assessments, for an overall PPV2 of 21.4% (18/84). For category 4 subdivisions, PPV2s were as follows: for category 4A, 2.5% (1/40); for category 4B, 27.6% (8/29); for category 4C, 83.3% (5/6); and for category 4 (not otherwise specified), 28.6% (2/7).

conclusionCategory 4 subdivisions for MRI yielded malignancy rates within BI-RADS-specified ranges, supporting their use for benefits to patient care and more meaningful practice audits.

Indexed as

Practice Guidelines as TopicAdolescentAdultAgedBreast NeoplasmsEarly Detection of CancerFemaleHumansMagnetic Resonance ImagingMedical OncologyMiddle AgedRadiologyReproducibility of ResultsSensitivity and SpecificityUnited StatesYoung AdultBI-RADS category 4breast MRI

Identifiers

PMID28792802
PMCPMC5600516

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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.