Evidence map›Paper›PMID 36726366›Full record

ArticleNeuro-oncology advances

Growth dynamics of brain metastases differentiate radiation necrosis from recurrence.

Beatriz Ocaña-Tienda, Julián Pérez-Beteta, David Molina-García, Beatriz Asenjo, Ana Ortiz de Mendivil, David Albillo, Luís A Pérez-Romasanta, Elisabeth González Del Portillo, Manuel Llorente, Natalia Carballo and 2 more

Abstract read
In one paragraph

Article in Neuro-oncology advances. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Review
  2. Artificial intelligence in neuro-oncology: methodological bases, practical applications and ethical and regulatory issues.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
    Review
  3. Review
  4. Article
  5. Article
  6. Article
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.

Beatriz Ocaña-TiendaMathematical Oncology Laboratory, University of Castilla-La Mancha, Ciudad Real, Spain.ORCID https://orcid.org/0000-0001-8931-3836
Julián Pérez-BetetaMathematical Oncology Laboratory, University of Castilla-La Mancha, Ciudad Real, Spain.ORCID https://orcid.org/0000-0003-0317-6215
David Molina-GarcíaMathematical Oncology Laboratory, University of Castilla-La Mancha, Ciudad Real, Spain.ORCID https://orcid.org/0000-0002-6104-3894
Beatriz AsenjoDepartment of Radiology, Hospital Regional Universitario Carlos Haya, Málaga, Spain.ORCID https://orcid.org/0000-0003-1299-5079
Ana Ortiz de MendivilDepartment of Radiology, Sanchinarro University Hospital, HM Hospitales, Madrid, Spain.ORCID https://orcid.org/0000-0002-3567-7041
David AlbilloRadiology Unit, MD Anderson Cancer Center, Madrid, Spain.ORCID https://orcid.org/0000-0002-4496-6849
Luís A Pérez-RomasantaRadiation Oncology Service, Salamanca University Hospital, Salamanca, Spain.ORCID https://orcid.org/0000-0001-8117-5459
Elisabeth González Del PortilloRadiation Oncology Service, Salamanca University Hospital, Salamanca, Spain.
Manuel LlorenteRadiology Unit, MD Anderson Cancer Center, Madrid, Spain.
Natalia CarballoRadiology Unit, MD Anderson Cancer Center, Madrid, Spain.
Estanislao AranaDepartment of Radiology, Fundación Instituto Valenciano de Oncología, Valencia, Spain.ORCID https://orcid.org/0000-0002-1884-7854
Víctor M Pérez-GarcíaMathematical Oncology Laboratory, University of Castilla-La Mancha, Ciudad Real, Spain.ORCID https://orcid.org/0000-0002-6575-495X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Radiation necrosis (RN) is a frequent adverse event after fractionated stereotactic radiotherapy (FSRT) or single-session stereotactic radiosurgery (SRS) treatment of brain metastases (BMs). It is difficult to distinguish RN from progressive disease (PD) due to their similarities in the magnetic resonance images. Previous theoretical studies have hypothesized that RN could have faster, although transient, growth dynamics after FSRT/SRS, but no study has proven that hypothesis using patient data. Thus, we hypothesized that lesion size time dynamics obtained from growth laws fitted with data from sequential volumetric measurements on magnetic resonance images may help in discriminating recurrent BMs from RN events. Methods: A total of 101 BMs from different institutions, growing after FSRT/SRS (60 PDs and 41 RNs) in 86 patients, displaying growth for at least 3 consecutive MRI follow-ups were selected for the study from a database of 1031 BMs. The 3 parameters of the Von Bertalanffy growth law were determined for each BM and used to discriminate statistically PDs from RNs. Results: Growth exponents in patients with RNs were found to be substantially larger than those of PD, due to the faster, although transient, dynamics of inflammatory processes. Statistically significant differences ( Conclusions: Growth law exponents obtained from sequential longitudinal magnetic resonance images after FSRT/SRS can be used as a complementary tool in the differential diagnosis between RN and PD.

Indexed as

Brain metastasesmathematical oncologyradiation necrosisstereotactic radiosurgery

Identifiers

PMID36726366
PMCPMC9887079

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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.