Evidence map›Paper›PMID 29749664›Full record

ArticleJournal of neuroimaging : official journal of the American Society of Neuroimaging2018

The Role of Neuroimaging in the Determination of Brain Death.

Derek MacDonald, Brandie Stewart-Perrin, Jai Jai Shiva Shankar

Open access · hybridAbstract read
In one paragraph

Article in Journal of neuroimaging : official journal of the American Society of Neuroimaging, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 6% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Review
  6. Review
  7. Ancillary tests for brain death.Frontiers in neurology · 2024
    Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
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  14. Flow is not perfusion, and perfusion is not function: ancillary testing for the diagnosis of brain death.Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2021
    Article
  15. Article
  16. Review
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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

3 authors at 1 institution in 1 country.

Derek MacDonaldDepartment of Diagnostic Imaging, QE II Health Sciences, Halifax, NS, Canada.
Brandie Stewart-PerrinDepartment of Diagnostic Imaging, QE II Health Sciences, Halifax, NS, Canada.
Jai Jai Shiva ShankarDepartment of Diagnostic Imaging, QE II Health Sciences, Halifax, NS, Canada.ORCID 0000-0002-3707-9723
Queen Elizabeth II Health Sciences Centre · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeBrain death determination (BDD) is primarily a clinical diagnosis, where death is defined as the permanent loss of brainstem function. In scenarios where clinical examinations are inaccurate, ancillary imaging tests are required. The choice of ancillary imaging test is variable, but the common denominator for all of them is to establish a lack of cerebral blood flow. The purpose of this study was to compare the diagnostic accuracy and interrater reliability of different ancillary imaging tests used for BDD.

methodsArchival data were retrospectively analyzed for all patients who underwent any ancillary imaging test for BDD at our institution. The results of ancillary imaging tests were compared with, the reference standard, the clinical checklist for declaration of brain death. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of different ancillary imaging tests for BDD were performed. Interobserver agreement between two observers was measured using kappa statistics for each of the imaging modalities.

resultsA total of 74 patients underwent 41 computer tomography perfusion (CTP), 54 CT angiogram, 15 radionuclide scans, 1 cerebral angiogram, 3 magnetic resonance imaging, and 71 nonenhanced CT (NECT) head for BDD. All ancillary tests (except NECT head) showed 100% specificity and PPV. CTP had the highest sensitivity and NPV. All ancillary imaging tests demonstrated very high interrater reliability.

conclusionsThe uses of ancillary imaging tests for BDD are increasing. Within this study's limitations, CTP followed by radionuclide scan were found to be the most accurate and reliable ancillary imaging test for BDD.

Indexed as

AdolescentAdultAgedBrainBrain DeathCerebral AngiographyCerebrovascular CirculationComputed Tomography AngiographyFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedNeuroimagingRadionuclide ImagingReproducibility of Resultsbrain deathCT perfusionImaging

Identifiers

PMID29749664
PMCPMC6055878
OpenAlexW2800678318

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.