Evidence map›Paper›PMID 22789844›Full record

ArticleMagnetic resonance imaging2012

Imaging of stroke: a comparison between X-ray fluorescence and magnetic resonance imaging methods.

Weili Zheng, E Mark Haacke, Samuel M Webb, Helen Nichol

Abstract readComparative Study
In one paragraph

Article in Magnetic resonance imaging, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 23% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. MatchingFrontiers in neuroanatomy · 2019
    Pooled it
  2. Article
  3. Iron and Alzheimer's Disease: From Pathology to Imaging.Frontiers in human neuroscience · 2022
    Review
  4. Review
  5. Article
  6. Article
  7. Examining potential side effects of therapeutic hypothermia in experimental intracerebral hemorrhage.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    Article
  8. Article
  9. Article
  10. Mapping iron in human heart tissue with synchrotron x-ray fluorescence microscopy and cardiovascular magnetic resonance.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2014
    Article
  11. 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 at 3 institutions in 2 countries.

Weili ZhengHUH-MR Research/Radiology, Wayne State University, Detroit, MI, USA.
E Mark Haacke
Samuel M Webb
Helen Nichol
Wayne State University · USStanford Synchrotron Radiation Lightsource · USUniversity of Saskatchewan · CA

Funding

ZWITTERION SURFACTANT DDMAB FOR IMPROV STABIL OF PROTEINP41RR001209 · NCRR · STANFORD UNIVERSITY · PI GONZALEZ, ANA M · 1985 to 2011
$38.9M
Susceptibility Weighted Imaging (SWI)R01HL062983 · NHLBI · MRI INSTITUTE FOR BIOMEDICAL RESEARCH · PI HAACKE, EWART MARK · 2001 to 2010
$2.3M
CIHR 96114-1CIHR CIF 99472NCRR NIH HHS P41 RR001209NCRR NIH HHS P41RR001209NHLBI NIH HHS R01 HL062983NHLBI NIH HHS R01HL062983
6 · The paper itself

Abstract

A dual imaging approach, combining magnetic resonance imaging to localize lesions and synchrotron rapid scanning X-ray fluorescence (XRF) mapping to localize and quantify calcium, iron and zinc was used to examine one case of recent stroke with hemorrhage and two cases of ischemia 3 and 7 years before death with the latter showing superficial necrosis. In hemorrhagic lesions, more Fe is found accompanied with less Zn. In chronic ischemic lesions, Fe, Zn and Ca are lower indicating that these elements are removed as the normal tissue dies and scar tissue forms. Both susceptibility and T2* maps were calculated to visualize iron in hemorrhages and validated by XRF Ca and Fe maps. The former was superior for imaging iron in hemorrhagic transformation and necrosis but did not capture ischemic lesions. In contrast, T2* could not differentiate Ca from Fe in necrotic tissue but did capture ischemic lesions, complementing the susceptibility mapping. The spatial localization, accurate quantitative data and elemental differentiation shown here could also be valuable for imaging other brain tissue damage with abnormal Ca and Fe content.

Indexed as

AgedAged, 80 and overBrainCadaverCalciumFemaleHemorrhageHumansIronIschemiaMagnetic Resonance ImagingMaleNecrosisSpectrometry, FluorescenceStrokeSynchrotronsCalciumIron

Identifiers

PMID22789844
PMCPMC3843005
OpenAlexW2029674482

What OpenQuestion holds

Textmetadata
LicenceTDM
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.