Evidence map›Paper›PMID 31956919›Full record

ArticleNeuro-oncology2020

Use of radiomics for the prediction of local control of brain metastases after stereotactic radiosurgery.

Andrei Mouraviev, Jay Detsky, Arjun Sahgal, Mark Ruschin, Young K Lee, Irene Karam, Chris Heyn, Greg J Stanisz, Anne L Martel

Abstract read
In one paragraph

Article in Neuro-oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing 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

64 citing papers in PubMed.

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  17. Morphological MRI features as prognostic indicators in brain metastases.Cancer imaging : the official publication of the International Cancer Imaging Society · 2024
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4 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Andrei MouravievDepartment of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.
Jay DetskyOdette Cancer Center, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Arjun SahgalOdette Cancer Center, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Mark RuschinOdette Cancer Center, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Young K LeeOdette Cancer Center, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Irene KaramOdette Cancer Center, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Chris HeynOdette Cancer Center, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Greg J StaniszDepartment of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.
Anne L MartelDepartment of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLocal response prediction for brain metastases (BM) after stereotactic radiosurgery (SRS) is challenging, particularly for smaller BM, as existing criteria are based solely on unidimensional measurements. This investigation sought to determine whether radiomic features provide additional value to routinely available clinical and dosimetric variables to predict local recurrence following SRS.

methodsAnalyzed were 408 BM in 87 patients treated with SRS. A total of 440 radiomic features were extracted from the tumor core and the peritumoral regions, using the baseline pretreatment volumetric post-contrast T1 (T1c) and volumetric T2 fluid-attenuated inversion recovery (FLAIR) MRI sequences. Local tumor progression was determined based on Response Assessment in Neuro-Oncology‒BM criteria, with a maximum axial diameter growth of >20% on the follow-up T1c indicating local failure. The top radiomic features were determined based on resampled random forest (RF) feature importance. An RF classifier was trained using each set of features and evaluated using the area under the receiver operating characteristic curve (AUC).

resultsThe addition of any one of the top 10 radiomic features to the set of clinical features resulted in a statistically significant (P < 0.001) increase in the AUC. An optimized combination of radiomic and clinical features resulted in a 19% higher resampled AUC (mean = 0.793; 95% CI = 0.792-0.795) than clinical features alone (0.669, 0.668-0.671).

conclusionsThe increase in AUC of the RF classifier, after incorporating radiomic features, suggests that quantitative characterization of tumor appearance on pretreatment T1c and FLAIR adds value to known clinical and dosimetric variables for predicting local failure.

Indexed as

Brain NeoplasmsRadiosurgeryHumansMagnetic Resonance ImagingRadiometryROC Curvebrain metastaseslocal controlneuro-oncologyradiomicsresponse prediction

Identifiers

PMID31956919
PMCPMC7283017

What OpenQuestion holds

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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.