Evidence map›Paper›PMID 24974083›Full record

ArticleNeuroradiology2014

Applicability of apparent diffusion coefficient ratios in preoperative diagnosis of common pediatric cerebellar tumors across two institutions.

Korgün Koral, Raphael Alford, Nabila Choudhury, Mahmud Mossa-Basha, Lynn Gargan, Barjor Gimi, Ang Gao, Song Zhang, Daniel C Bowers, Kadriye M Koral and 1 more

Abstract readClinical StudyMulticenter Study
PubMed Publisher
In one paragraph

Article in Neuroradiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

  1. Plasma lipidomics profiling to identify signatures of pediatric medulloblastoma.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
    Article
  2. Article
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  4. [Pediatric posterior fossa tumors].Radiologie (Heidelberg, Germany) · 2023
    Review
  5. Article
  6. Review
  7. Review
  8. MR Imaging of Pediatric Brain Tumors.Diagnostics (Basel, Switzerland) · 2022
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Apparent diffusion coefficient mapping in medulloblastoma predicts non-infiltrative surgical planes.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2016
    Article
  18. Pediatric cerebellar astrocytoma: a review.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2015
    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

11 authors.

Korgün KoralDepartment of Radiology, University of Texas Southwestern Medical Center and Children's Medical Center, 1935 Medical District Drive, Dallas, TX, 75235, USA, korgun.koral@utsouthwestern.edu.
Raphael Alford
Nabila Choudhury
Mahmud Mossa-Basha
Lynn Gargan
Barjor Gimi
Ang Gao
Song Zhang
Daniel C Bowers
Kadriye M Koral
Izlem Izbudak

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe purpose of our study was to test the accuracy and applicability of decision rules utilizing apparent diffusion coefficient (ADC) ratios on accurate preoperative diagnosis of common pediatric cerebellar tumors across two institutions.

methodsIn this HIPAA-compliant, IRB-approved study, performed at two institutions, 140 pediatric cerebellar tumors were included. Two separate reviewers placed regions of interest on the solid components of 140 tumors (98 at site A and 42 at site B) and normal brain on the ADC maps. The third reviewer who was blinded to the histopathological diagnoses made the same measurements on 140 patients to validate the data. Tumor to normal brain ADC ratios were calculated. Receiver operator curve (ROC) analysis was performed to generate thresholds to discriminate tumors. Utility of decision rules based on these thresholds was tested.

resultsWhile ADC values of medulloblastomas were different between the sites, there was no difference among the ADC ratios of medulloblastomas, pilocytic astrocytomas, ependymomas, and atypical teratoid rhabdoid tumors between the sites. ADC ratio of ≥1.8 correctly discriminated pilocytic astrocytomas from ependymomas with a sensitivity of 0.83 and a specificity of 0.78. ADC ratio of <1.2 correctly discriminated ependymomas from embryonal tumors with a sensitivity of 0.87 and a specificity of 0.83. The proposed decision rules correctly discriminated 120 of the 140 tumors (85.71%). Age ≥2 years criterion correctly sorted medulloblastomas in 84.48% of patients and age <2 years correctly distinguished atypical teratoid rhabdoid tumors in 90.00% of patients with embryonal tumors.

conclusionsDecision rules based on ADC ratios are applicable across two institutions in the accurate preoperative diagnosis of common pediatric cerebellar tumors.

Indexed as

Diffusion Magnetic Resonance ImagingAdolescentAstrocytomaCerebellar NeoplasmsChildChild, PreschoolEpendymomaFemaleHumansInfantMaleMedulloblastomaPreoperative CareRetrospective StudiesRhabdoid TumorSensitivity and Specificity

Identifiers

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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.