Evidence map›Paper›PMID 29150710›Full record

ArticleClinical neuroradiology2019

Computed Tomography Perfusion is a Useful Adjunct to Computed Tomography Angiography in the Diagnosis of Brain Death.

M Sawicki, J Sołek-Pastuszka, K Chamier-Ciemińska, A Walecka, J Walecki, R Bohatyrewicz

Open access · hybridAbstract readComparative Study
In one paragraph

Article in Clinical neuroradiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

16 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
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  5. Article
  6. Article
  7. South African guidelines on the determination of death.The Southern African journal of critical care : the official journal of the Critical Care Society · 2021
    Article
  8. Article
  9. Article
  10. Maintaining the permanence principle for death during in situ normothermic regional perfusion for donation after circulatory death organ recovery: A United Kingdom and Canadian proposal.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2020
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. The Role of Neuroimaging in the Determination of Brain Death.Journal of neuroimaging : official journal of the American Society of Neuroimaging · 2018
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

M SawickiDept. of Diagnostic Imaging and Interventional Radiology, Pomeranian Medical University, Szczecin, Poland.
J Sołek-PastuszkaClinic of Anesthesiology and Intensive Care, Pomeranian Medical University, Clinical Hospital No1, Unii Lubelskiej 1, 71252, Szczecin, Poland. joanna.pastuszka@pum.edu.pl.
K Chamier-CiemińskaDept. of Diagnostic Imaging and Interventional Radiology, Pomeranian Medical University, Szczecin, Poland.
A WaleckaDept. of Diagnostic Imaging and Interventional Radiology, Pomeranian Medical University, Szczecin, Poland.
J WaleckiThe Centre of Postgraduate Medical Education, Warsaw, Poland.
R BohatyrewiczClinic of Anesthesiology and Intensive Care, Pomeranian Medical University, Clinical Hospital No1, Unii Lubelskiej 1, 71252, Szczecin, Poland.
Pomeranian Medical University · PLPostgraduate School of Molecular Medicine · PL

Funding

Pomeranian Medical University in Szczecin, Poland FSN-115-01/14
6 · The paper itself

Abstract

backgroundIn the diagnosis of brain death (BD), computed tomography angiography (CTA) results in some cases show intracranial filling, leading to diagnostic confusion. Because cerebral circulatory arrest commences at the capillary level, we hypothesized that computed tomography perfusion (CTP) would be a more sensitive approach than CTA; therefore, the aim of the study was to compare the sensitivities of CTP and CTA in the diagnosis of BD. MATERIAL AND

methodsWhole brain CTP was performed in patients in the intensive care unit diagnosed with BD and CTA was derived from CTP datasets. Cerebral blood flow (CBF) and volume (CBV) were calculated in all brain regions. The CTP findings were interpreted as being consistent with a diagnosis of BD (positive) when CBF and CBV in all regions of interest (ROIs) were below 10 ml/100 g/min and 1.0 ml/100 g, respectively. The CTA findings were interpreted using a 4-point grading system.

resultsA total of 50 patients were included in the study. The CTP results revealed CBF from 0.00 to 9.98 ml/100 g/min (mean, 1.98 ± 1.68 ml/100 g/min) and CBV from 0.00 to 0.99 ml/100 g (mean, 0.14 ± 0.12 ml/100 g) and were thus interpreted as positive in all 50 patients. In contrast, the CTA results suggested 7 negative cases, providing a sensitivity of 86%. The difference between the CTP and CTA sensitivity results for the diagnosis of BD was statistically significant (p = 0.006).

conclusionWhole brain CTP may potentially be a feasible and highly sensitive test for diagnosing BD: therefore, performing CTP in combination with CTA in cases when CTA results are negative for BD could increase the sensitivity of CTA.

Indexed as

Tomography, X-Ray ComputedAdolescentAdultAgedBlood VolumeBrainBrain DeathCerebral AngiographyCerebrovascular CirculationComputed Tomography AngiographyFalse Negative ReactionsFemaleHumansMaleMiddle AgedSensitivity and SpecificityBrain deathFour-dimensional computed tomographyMultidetector computed tomographyPerfusion imaging

Identifiers

PMID29150710
PMCPMC6394546
OpenAlexW2768751007

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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.