Evidence map›Paper›PMID 29191874›Full record

ArticleAJNR. American journal of neuroradiology2018

CT Attenuation Analysis of Carotid Intraplaque Hemorrhage.

L Saba, M Francone, P P Bassareo, L Lai, R Sanfilippo, R Montisci, J S Suri, C N De Cecco, G Faa

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 2 pooled it
4.3field-weighted citation impact, top 5% 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

47 citing papers in PubMed, 2 syntheses or guidelines pooled it, 73 citations in OpenAlex.

  1. Pooled it
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  6. Thrombus composition identifies distinct etiologic phenotypes in embolic stroke of undetermined source.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Article
  7. Article
  8. Carotid plaque characteristics by computed Tomography: A diagnostic accuracy systematic review.International journal of cardiology. Heart & vasculature · 2025
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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

9 authors at 6 institutions in 3 countries.

L SabaFrom the Departments of Radiology (L.S.) lucasaba@tiscali.it.ORCID 0000-0003-2870-3771
M FranconeCardiology (M.F., P.P.B., G.F.).ORCID 0000-0002-7906-3420
P P BassareoCardiology (M.F., P.P.B., G.F.).ORCID 0000-0002-8374-0260
L LaiDepartment of Radiological, Oncological, and Pathological Sciences (L.L.), Sapienza University of Rome, Rome, Italy.ORCID 0000-0002-1515-1173
R SanfilippoVascular Surgery (R.S., R.M.), Azienda Ospedaliero Universitaria of Cagliari - Polo di Monserrato, Cagliari, Italy.ORCID 0000-0003-1307-3674
R MontisciVascular Surgery (R.S., R.M.), Azienda Ospedaliero Universitaria of Cagliari - Polo di Monserrato, Cagliari, Italy.ORCID 0000-0001-6308-8562
J S SuriPoint of Care Devices (J.S.S.), Global Biomedical Technologies, Roseville, California.ORCID 0000-0001-6499-396X
C N De CeccoDepartment of Radiology and Radiological Science (C.N.D.C.), Division of Cardiovascular Imaging, Medical University of South Carolina, Charleston, South Carolina.ORCID 0000-0002-2956-3101
G FaaCardiology (M.F., P.P.B., G.F.).ORCID 0000-0002-0189-8612
Ferioli & Gianotti (Italy) · ITAzienda Ospedaliero-Universitaria Cagliari · ITIdaho State University · USMedical University of South Carolina · USSapienza University of Rome · ITTiscali (Italy) · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeIntraplaque hemorrhage is considered a leading parameter of carotid plaque vulnerability. Our purpose was to assess the CT characteristics of intraplaque hemorrhage with histopathologic correlation to identify features that allow for confirming or ruling out the intraplaque hemorrhage. MATERIALS AND

methodsThis retrospective study included 91 patients (67 men; median age, 65 ± 7 years; age range, 41-83 years) who underwent CT angiography and carotid endarterectomy from March 2010 to May 2013. Histopathologic analysis was performed for the tissue characterization and identification of intraplaque hemorrhage. Two observers assessed the plaque's attenuation values by using an ROI (≥ 1 and ≤2 mm

resultsA total of 169 slices were assessed (59 intraplaque hemorrhage, 63 lipid-rich necrotic core, and 47 fibrous); the average values of the intraplaque hemorrhage, lipid-rich necrotic core, and fibrous tissue were 17.475 Hounsfield units (HU) and 18.407 HU, 39.476 HU and 48.048 HU, and 91.66 HU and 93.128 HU, respectively, before and after the administration of contrast medium. The Mann-Whitney test showed a statistically significant difference of HU values both in basal and after the administration of contrast material phase. Receiver operating characteristic analysis showed a statistical association between intraplaque hemorrhage and low HU values, and a threshold of 25 HU demonstrated the presence of intraplaque hemorrhage with a sensitivity and specificity of 93.22% and 92.73%, respectively. The Wilcoxon test showed that the attenuation of the plaque before and after administration of contrast material is different (intraplaque hemorrhage, lipid-rich necrotic core, and fibrous tissue had

conclusionsThe results of this preliminary study suggest that CT can be used to identify the presence of intraplaque hemorrhage according to the attenuation. A threshold of 25 HU in the volume acquired after the administration of contrast medium is associated with an optimal sensitivity and specificity. Special care should be given to the correct identification of the ROI.

Indexed as

AdultAgedAged, 80 and overCarotid StenosisComputed Tomography AngiographyEndarterectomy, CarotidFemaleHemorrhageHumansMaleMiddle AgedPlaque, AtheroscleroticRetrospective StudiesROC CurveSensitivity and Specificity

Identifiers

PMID29191874
PMCPMC7410713
OpenAlexW2773407460

What Socratic 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 Socratic graph.