Evidence map›Paper›PMID 31533742›Full record

ArticleRadiation oncology (London, England)2019

MRI based neuroanatomical segmentation in breast cancer patients: leptomeningeal carcinomatosis vs. oligometastatic brain disease vs. multimetastastic brain disease.

Michael Mayinger, Antonia Reibelt, Kai Joachim Borm, Johannes Ettl, Jan J Wilkens, Stephanie Elisabeth Combs, Markus Oechsner, Marciana Nona Duma

Open access · goldAbstract read
In one paragraph

Article in Radiation oncology (London, England), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 21% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
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

8 authors at 2 institutions in 2 countries.

Michael MayingerDepartment of Radiation Oncology, Medical School, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
Antonia ReibeltDepartment of Radiation Oncology, Medical School, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
Kai Joachim BormDepartment of Radiation Oncology, Medical School, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
Johannes EttlDepartment of Obstetrics and Gynecology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
Jan J WilkensDepartment of Radiation Oncology, Medical School, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
Stephanie Elisabeth CombsDepartment of Radiation Oncology, Medical School, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
Markus OechsnerDepartment of Radiation Oncology, Medical School, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
Marciana Nona DumaDepartment of Radiation Oncology, Medical School, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany. Marciana-Nona.Duma@med.uni-jena.de.ORCID http://orcid.org/0000-0002-0205-4411
TUM Klinikum · DEUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePathogenesis of brain metastases/meningeal cancer and the emotional and neurological outcomes are not yet well understood. The hypothesis of our study is that patients with leptomeningeal cancer show volumetric differences in brain substructures compared to patients with cerebral metastases.

methodsThree groups consisting of female breast cancer patients prior to brain radiotherapy were compared. Leptomeningeal cancer patients (LMC Group), oligometastatic patients (1-3 brain metastases) prior to radiosurgery (OMRS Group) and patients prior to whole brain radiation (WB Group) were included. All patients had MRI imaging before treatment. T1 MRI sequences were segmented using automatic segmentation. For each patient, 14 bilateral and 11 central/median subcortical structures were tested. Overall 1127 structures were analyzed and compared between groups using age matched two-sided t-tests.

resultsThe average age of patients in the OMRS group was 60.8 years (± 14.7), 65.3 (± 10.3) in the LMC group and 62.6 (± 10.2) in the WB group. LMC patients showed a significantly larger fourth ventricle compared to OMRS (p = 0.001) and WB (p = 0.003). The central corpus callosum appeared smaller in the LMC group (LMC vs OMRS p = 0.01; LMC vs WB p = 0.026). The right amygdala in the WB group appeared larger compared with the OMRS (p = 0.035).

conclusionsDifferences in the size of brain substructures of the three groups were found. The results appear promising and should be taken into account for further prospective studies also involving healthy controls. The volumetrically determined size of the fourth ventricle might be a helpful diagnostic marker in the future.

Indexed as

AgedBrain MappingBrain NeoplasmsBreast NeoplasmsFemaleHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMeningeal CarcinomatosisMiddle AgedNeuroanatomical Tract-Tracing TechniquesPrognosisRadiosurgeryRetrospective Studies

Identifiers

PMID31533742
PMCPMC6749713
OpenAlexW2973717990

What OpenQuestion holds

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LicenceCC BY
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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.