Evidence map›Paper›PMID 27062404›Full record

ArticleAtherosclerosis2016

Ex-vivo imaging and plaque type classification of intracranial atherosclerotic plaque using high resolution MRI.

Yuanliang Jiang, Chengcheng Zhu, Wenjia Peng, Andrew J Degnan, Luguang Chen, Xinrui Wang, Qi Liu, Yang Wang, Zhenzhen Xiang, Zhongzhao Teng and 2 more

Open access · greenAbstract read
In one paragraph

Article in Atherosclerosis, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 2 pooled it
6.7field-weighted citation impact, top 3% 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

40 citing papers in PubMed, 2 syntheses or guidelines pooled it, 64 citations in OpenAlex.

  1. MR Intracranial Vessel Wall Imaging: A Systematic Review.Journal of neuroimaging : official journal of the American Society of Neuroimaging · 2020
    Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Observational
  8. Vessel Wall Imaging in Cryptogenic Stroke.Radiologic clinics of North America · 2023
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Characteristics of symptomatic plaque on high-resolution magnetic resonance imaging and its relationship with the occurrence and recurrence of ischemic stroke.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021
    Review
  16. Article
  17. Review
  18. Article
  19. Review
  20. TFrontiers in neuroscience · 2021
    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

12 authors at 4 institutions in 3 countries.

Yuanliang JiangDepartment of Radiology, Changhai Hospital, Shanghai, China.
Chengcheng ZhuDepartment of Radiology and Biomedical Imaging, UCSF, San Francisco, CA, USA. Electronic address: Chengcheng.Zhu@ucsf.edu.
Wenjia PengDepartment of Radiology, Changhai Hospital, Shanghai, China.
Andrew J DegnanDepartment of Radiology, University of Pittsburgh, Pittsburgh, USA.
Luguang ChenDepartment of Radiology, Changhai Hospital, Shanghai, China.
Xinrui WangDepartment of Radiology, Changhai Hospital, Shanghai, China.
Qi LiuDepartment of Radiology, Changhai Hospital, Shanghai, China.
Yang WangDepartment of Pathology, Changhai Hospital, Shanghai, China.
Zhenzhen XiangDepartment of Pathology, Changhai Hospital, Shanghai, China.
Zhongzhao TengDepartment of Radiology, University of Cambridge, Cambridge, UK.
David SalonerDepartment of Radiology and Biomedical Imaging, UCSF, San Francisco, CA, USA.
Jianping LuDepartment of Radiology, Changhai Hospital, Shanghai, China. Electronic address: cjr.lujianping@vip.163.com.
Second Military Medical University · CNUniversity of California, San Francisco · USUniversity of Cambridge · GBUniversity of Pittsburgh · US

Funding

MRI of Structure and Function in Assessing Hemodynamic Impact on AAA EvolutionR01HL114118 · NHLBI · NORTHERN CALIFORNIA INSTITUTE/RES/EDU · PI SALONER, DAVID A · 2014 to 2017
$1.8M
Determinants of Intracranial Aneurysm GrowthR01NS059944 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI SALONER, DAVID A · 2009 to 2013
$1.7M
NHLBI NIH HHS R01 HL114118NINDS NIH HHS R01 NS059944
6 · The paper itself

Abstract

BACKGROUND AND

aimsRecent development of high resolution MRI techniques have enabled imaging of intracranial atherosclerotic plaque in vivo. However, identifying plaque composition remains challenging given the small size and the lack of histological validation. This study aims to quantify the relaxation times of intracranial plaque components ex vivo at 3 T and to determine whether multi-contrast MRI could classify intracranial plaque according to the American Heart Association classification with histological validation.

methodsA total of 53 intracranial arteries with atherosclerotic plaques from 20 cadavers (11 male, age 73.8 ± 10.9) were excised. Quantitative T1/T2/T2* mapping sequences and multi-contrast fast-spin echo sequences (T1, T2, proton-density weighted and short time inversion recovery) were acquired. Plaque components including: fibrous cap, lipid core, fibrous tissue, calcification, and healthy wall were segmented on histology, and their relaxation times were derived from quantitative images. Two radiologists independently classified plaque type blinded to the histology results.

resultsRelaxation times of plaque components are distinct and different. T2 and T2* values of lipid core are lower than fibrous cap (p = 0.026 & p < 0.0001), but are comparable with fibrous tissue and healthy wall (p = 0.76 & p = 0.42). MRI reliably classified plaque type compared with histology (κ = 0.69) with an overall accuracy of 80.7%. The sensitivity and specificity using MRI to identify fibro-lipid atheroma (type IV-V) was 94.8% and 77.1%, respectively. Inter-observer agreement was excellent (κ = 0.77).

conclusionIntracranial plaque components have distinct and different relaxation times at 3 T. High-resolution MRI is able to characterize intracranial plaque composition and classify plaque types ex vivo at 3 T.

Indexed as

Magnetic Resonance ImagingAgedAtherosclerosisBasilar ArteryCadaverCarotid Artery DiseasesCerebral ArteriesFemaleHumansImage Processing, Computer-AssistedMaleMiddle AgedMiddle Cerebral ArteryObserver VariationPlaque, AtheroscleroticStrokeAtherosclerosisEx-vivoMagnetic resonance imagingStrokeVessel wall imaging

Identifiers

PMID27062404
PMCPMC4879074
OpenAlexW2330994511

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.