Evidence map›Paper›PMID 31462093›Full record

ArticleArteriosclerosis, thrombosis, and vascular biology2019

Calcification in Human Intracranial Aneurysms Is Highly Prevalent and Displays Both Atherosclerotic and Nonatherosclerotic Types.

Piyusha S Gade, Riikka Tulamo, Kee-Won Lee, Fernando Mut, Eliisa Ollikainen, Chih-Yuan Chuang, Bong Jae Chung, Mika Niemelä, Behnam Rezai Jahromi, Khaled Aziz and 6 more

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Arteriosclerosis, thrombosis, and vascular biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 12% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. Pooled it
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  8. Analysis of the Role of Vasa Vasorum in the Oxygen Transport to the Aneurysm Wall.International journal for numerical methods in biomedical engineering · 2025
    Article
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  13. Comapping Cellular Content and Extracellular Matrix with Hemodynamics in Intact Arterial Tissues Using Scanning Immunofluorescent Multiphoton Microscopy.Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada · 2024
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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

16 authors at 6 institutions in 2 countries.

Piyusha S GadeFrom the Department of Bioengineering (P.S.G., K.L., A.M.R.), University of Pittsburgh, PA.
Riikka TulamoDepartment of Vascular Surgery (R.T.), Helsinki University Hospital, University of Helsinki, Finland.
Kee-Won LeeFrom the Department of Bioengineering (P.S.G., K.L., A.M.R.), University of Pittsburgh, PA.
Fernando MutDepartment of Bioengineering, George Mason University, Fairfax, VA (F.M., J.R.C.).
Eliisa OllikainenDepartment of Mechanical Engineering and Materials Science (E.O., C.-Y.C., A.M.R.), University of Pittsburgh, PA.
Chih-Yuan ChuangDepartment of Mechanical Engineering and Materials Science (E.O., C.-Y.C., A.M.R.), University of Pittsburgh, PA.
Bong Jae ChungDepartment of Mathematical Sciences, Montclair State University, NJ (B.J.C.).
Mika NiemeläDepartment of Neurosurgery (E.O., M.N., B.R.J.), Helsinki University Hospital, University of Helsinki, Finland.
Behnam Rezai JahromiDepartment of Neurosurgery (E.O., M.N., B.R.J.), Helsinki University Hospital, University of Helsinki, Finland.
Khaled AzizDepartment of Neurosurgery, Allegheny General Hospital, Pittsburgh, PA (K.A., A.Y.).
Alexander YuDepartment of Neurosurgery, Allegheny General Hospital, Pittsburgh, PA (K.A., A.Y.).
Fady T CharbelDepartment of Neurosurgery, University of Illinois at Chicago (F.T.C., S.A.-H.).
Sepideh Amin-HanjaniDepartment of Neurosurgery, University of Illinois at Chicago (F.T.C., S.A.-H.).
Juhana FrösenDepartment of Neurosurgery, Kuopio University Hospital, Finland (J.F.).
Juan R CebralDepartment of Bioengineering, George Mason University, Fairfax, VA (F.M., J.R.C.).
Anne M RobertsonFrom the Department of Bioengineering (P.S.G., K.L., A.M.R.), University of Pittsburgh, PA.
Helsinki University Hospital · FIUniversity of Pittsburgh · USAllegheny General Hospital · USGeorge Mason University · USUniversity of Illinois Chicago · USMontclair State University · US

Funding

Improving Cerebral Aneurysm Risk Assessment through Understanding Wall Vulnerability and Failure ModesR01NS097457 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CEBRAL, JUAN R, ROBERTSON, ANNE MARIE · 2016 to 2025
$6.0M
American Society of Gene & Cell Therapy (ASGCT) 20th Annual MeetingR13TR002018 · NCATS · AMERICAN SOCIETY OF GENE & CELL THERAPY · PI HESLOP, HELEN E · 2017 to 2017
$22k
NCATS NIH HHS R13 TR002018NINDS NIH HHS R01 NS097457
6 · The paper itself

Abstract

objectiveAlthough the clinical and biological importance of calcification is well recognized for the extracerebral vasculature, its role in cerebral vascular disease, particularly, intracranial aneurysms (IAs), remains poorly understood. Extracerebrally, 2 distinct mechanisms drive calcification, a nonatherosclerotic, rapid mineralization in the media and a slower, inflammation driven, atherosclerotic mechanism in the intima. This study aims to determine the prevalence, distribution, and type (atherosclerotic, nonatherosclerotic) of calcification in IAs and assess differences in occurrence between ruptured and unruptured IAs. Approach and Results: Sixty-five 65 IA specimens (48 unruptured, 17 ruptured) were resected perioperatively. Calcification and lipid pools were analyzed nondestructively in intact samples using high resolution (0.35 μm) microcomputed tomography. Calcification is highly prevalent (78%) appearing as micro (<500 µm), meso (500 µm-1 mm), and macro (>1 mm) calcifications. Calcification manifests in IAs as both nonatherosclerotic (calcification distinct from lipid pools) and atherosclerotic (calcification in the presence of lipid pools) with 3 wall types: Type I-only calcification, no lipid pools (20/51, 39%), Type II-calcification and lipid pools, not colocalized (19/51, 37%), Type III-calcification colocalized with lipid pools (12/51, 24%). Ruptured IAs either had no calcifications or had nonatherosclerotic micro- or meso-calcifications (Type I or II), without macro-calcifications.

conclusionsCalcification in IAs is substantially more prevalent than previously reported and presents as both nonatherosclerotic and atherosclerotic types. Notably, ruptured aneurysms had only nonatherosclerotic calcification, had significantly lower calcification fraction, and did not contain macrocalcifications. Improved understanding of the role of calcification in IA pathology should lead to new therapeutic targets.

Indexed as

AgedAnalysis of VarianceAneurysm, RupturedAtherosclerosisCalcinosisHumansImage Processing, Computer-AssistedIntracranial AneurysmMiddle AgedPrevalenceRisk AssessmentSampling StudiesSeverity of Illness IndexStatistics, NonparametricTissue and Organ HarvestingX-Ray Microtomographyaneurysm, rupturedcalcificationintracranial aneurysmslipidprevalence

Identifiers

PMID31462093
PMCPMC6911659
OpenAlexW2971160620

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.