Evidence map›Paper›PMID 34870222›Full record

ArticleRadiology. Artificial intelligence2021

Toward Generalizability in the Deployment of Artificial Intelligence in Radiology: Role of Computation Stress Testing to Overcome Underspecification.

Thomas Eche, Lawrence H Schwartz, Fatima-Zohra Mokrane, Laurent Dercle

Abstract read
In one paragraph

Article in Radiology. Artificial intelligence, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
93citing papers in PubMed, 5 pooled it
–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

93 citing papers in PubMed, 5 syntheses or guidelines pooled it.

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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

4 authors.

Thomas EcheDepartment of Radiology, Toulouse Rangueil Hospital, Toulouse, France (T.E., F.Z.M.); and Department of Radiology, NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, 622 West 168th St, New York, NY 10032 (T.E., L.H.S., L.D.).ORCID https://orcid.org/0000-0002-7464-4330
Lawrence H SchwartzDepartment of Radiology, Toulouse Rangueil Hospital, Toulouse, France (T.E., F.Z.M.); and Department of Radiology, NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, 622 West 168th St, New York, NY 10032 (T.E., L.H.S., L.D.).
Fatima-Zohra MokraneDepartment of Radiology, Toulouse Rangueil Hospital, Toulouse, France (T.E., F.Z.M.); and Department of Radiology, NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, 622 West 168th St, New York, NY 10032 (T.E., L.H.S., L.D.).ORCID https://orcid.org/0000-0003-1610-1474
Laurent DercleDepartment of Radiology, Toulouse Rangueil Hospital, Toulouse, France (T.E., F.Z.M.); and Department of Radiology, NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, 622 West 168th St, New York, NY 10032 (T.E., L.H.S., L.D.).

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The clinical deployment of artificial intelligence (AI) applications in medical imaging is perhaps the greatest challenge facing radiology in the next decade. One of the main obstacles to the incorporation of automated AI-based decision-making tools in medicine is the failure of models to generalize when deployed across institutions with heterogeneous populations and imaging protocols. The most well-understood pitfall in developing these AI models is overfitting, which has, in part, been overcome by optimizing training protocols. However, overfitting is not the only obstacle to the success and generalizability of AI. Underspecification is also a serious impediment that requires conceptual understanding and correction. It is well known that a single AI pipeline, with prescribed training and testing sets, can produce several models with various levels of generalizability. Underspecification defines the inability of the pipeline to identify whether these models have embedded the structure of the underlying system by using a test set independent of, but distributed identically, to the training set. An underspecified pipeline is unable to assess the degree to which the models will be generalizable. Stress testing is a known tool in AI that can limit underspecification and, importantly, assure broad generalizability of AI models. However, the application of stress tests is new in radiologic applications. This report describes the concept of underspecification from a radiologist perspective, discusses stress testing as a specific strategy to overcome underspecification, and explains how stress tests could be designed in radiology-by modifying medical images or stratifying testing datasets. In the upcoming years, stress tests should become in radiology the standard that crash tests have become in the automotive industry.

Indexed as

Computer-aided DiagnosisComputer Applications-GeneralInformatics

Identifiers

PMID34870222
PMCPMC8637230

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.