Evidence map›Paper›PMID 22929436›Full record

Trial reportJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2012

Automated core-penumbra quantification in neonatal ischemic brain injury.

Nirmalya Ghosh, Xiangpeng Yuan, Christine I Turenius, Beatriz Tone, Kamalakar Ambadipudi, Evan Y Snyder, Andre Obenaus, Stephen Ashwal

Open access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

21 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Synergistic Neuroprotection by a PAF Antagonist Plus a Docosanoid in Experimental Ischemic Stroke: Dose-Response and Therapeutic Window.Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association · 2022
    Article
  6. Review
  7. Article
  8. Imaging the physiological evolution of the ischemic penumbra in acute ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2018
    Review
  9. Response of the cerebral vasculature following traumatic brain injury.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    Review
  10. Article
  11. Improved long-term outcome after transient cerebral ischemia in aquaporin-4 knockout mice.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Mechanisms of perinatal arterial ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2014
    Review
  18. Article
  19. Article
  20. 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

8 authors at 3 institutions in 1 country.

Nirmalya GhoshDepartment of Pediatrics, Loma Linda University, Loma Linda, California 92350, USA.
Xiangpeng Yuan
Christine I Turenius
Beatriz Tone
Kamalakar Ambadipudi
Evan Y Snyder
Andre Obenaus
Stephen Ashwal
Loma Linda University · USImaging Center · USSanford Burnham Prebys Medical Discovery Institute · US

Funding

The glymphatic system, a new concept in glia biologyR01NS078304 · NINDS · UNIVERSITY OF ROCHESTER · PI NEDERGAARD, MAIKEN · 2012 to 2016
$1.7M
Neonatal Brain Ischemia: Neuroimaging as a Basis For Rational Stem Cell TherapyR01NS059770 · NINDS · LOMA LINDA UNIVERSITY · PI ASHWAL, STEPHEN · 2009 to 2012
$1.3M
NINDS NIH HHS NS078304NINDS NIH HHS R01 NS059770
6 · The paper itself

Abstract

Neonatal hypoxic-ischemic brain injury (HII) and arterial ischemic stroke (AIS) result in irreversibly injured (core) and salvageable (penumbral) tissue regions. Identification and reliable quantification of salvageable tissue is pivotal to any effective and safe intervention. Magnetic resonance imaging (MRI) is the current standard to distinguish core from penumbra using diffusion-perfusion mismatch (DPM). However, subtle MR signal variations between core-penumbral regions make their visual delineation difficult. We hypothesized that computational analysis of MRI data provides a more accurate assessment of core and penumbral tissue evolution in HII/AIS. We used two neonatal rat-pup models of HII/AIS (unilateral and global hypoxic-ischemia) and clinical data sets from neonates with AIS to test our noninvasive, automated computational approach, Hierarchical Region Splitting (HRS), to detect and quantify ischemic core-penumbra using only a single MRI modality (T2- or diffusion-weighted imaging, T2WI/DWI). We also validated our approach by comparing core-penumbral images (from HRS) to DPM with immunohistochemical validation of HII tissues. Our translational and clinical data results showed that HRS could accurately and reliably distinguish the ischemic core from penumbra and their spatiotemporal evolution, which may aid in the vetting and execution of effective therapeutic interventions as well as patient selection.

Indexed as

Magnetic Resonance AngiographyAnimalsAnimals, NewbornBrainBrain InjuriesBrain IschemiaFemaleHumansImmunohistochemistryInfant, NewbornInfant, Newborn, DiseasesMaleRats

Identifiers

PMID22929436
PMCPMC3520032
OpenAlexW1979949380

What OpenQuestion holds

Textmetadata
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.