Evidence map›Paper›PMID 28074320›Full record

ArticleJournal of neuro-oncology2017

Algorithmic three-dimensional analysis of tumor shape in MRI improves prognosis of survival in glioblastoma: a multi-institutional study.

Nicholas Czarnek, Kal Clark, Katherine B Peters, Maciej A Mazurowski

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in Journal of neuro-oncology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

19 citing papers in PubMed.

  1. Trial
  2. Review
  3. Article
  4. Artificial Intelligence in Brain Tumors.Advances in experimental medicine and biology · 2024
    Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Imaging in neuro-oncology.Therapeutic advances in neurological disorders · 2018
    Review
  18. Article
  19. 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

4 authors.

Nicholas CzarnekElectrical & Computer Engineering, Duke University, Box 90291, Durham, NC, 27708, USA. nicholas.czarnek@duke.edu.ORCID 0000-0002-7889-0184
Kal ClarkDepartment of Radiology, Duke University, 2424 Erwin Road (Hock Plaza), Suite 302, Durham, NC, 27705, USA.
Katherine B PetersDepartment of Neurology, Duke University Medical Center, 3624, Durham, NC, 27710, USA.
Maciej A MazurowskiElectrical & Computer Engineering, Duke University, Box 90291, Durham, NC, 27708, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this retrospective, IRB-exempt study, we analyzed data from 68 patients diagnosed with glioblastoma (GBM) in two institutions and investigated the relationship between tumor shape, quantified using algorithmic analysis of magnetic resonance images, and survival. Each patient's Fluid Attenuated Inversion Recovery (FLAIR) abnormality and enhancing tumor were manually delineated, and tumor shape was analyzed by automatic computer algorithms. Five features were automatically extracted from the images to quantify the extent of irregularity in tumor shape in two and three dimensions. Univariate Cox proportional hazard regression analysis was performed to determine how prognostic each feature was of survival. Kaplan Meier analysis was performed to illustrate the prognostic value of each feature. To determine whether the proposed quantitative shape features have additional prognostic value compared with standard clinical features, we controlled for tumor volume, patient age, and Karnofsky Performance Score (KPS). The FLAIR-based bounding ellipsoid volume ratio (BEVR), a 3D complexity measure, was strongly prognostic of survival, with a hazard ratio of 0.36 (95% CI 0.20-0.65), and remained significant in regression analysis after controlling for other clinical factors (P = 0.0061). Three enhancing-tumor based shape features were prognostic of survival independently of clinical factors: BEVR (P = 0.0008), margin fluctuation (P = 0.0013), and angular standard deviation (P = 0.0078). Algorithmically assessed tumor shape is statistically significantly prognostic of survival for patients with GBM independently of patient age, KPS, and tumor volume. This shows promise for extending the utility of MR imaging in treatment of GBM patients.

Indexed as

Image Interpretation, Computer-AssistedAdolescentAdultAgedAged, 80 and overAlgorithmsBrain NeoplasmsFemaleGlioblastomaHumansImaging, Three-DimensionalKaplan-Meier EstimateMagnetic Resonance ImagingMaleMiddle AgedPrognosisGlioblastomaMagnetic resonance imagingPrognosisShapeSurvival

Identifiers

What OpenQuestion holds

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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.