Evidence map›Paper›PMID 29876705›Full record

ArticleEuropean radiology2018

Superficial and multiple calcifications and ulceration associate with intraplaque hemorrhage in the carotid atherosclerotic plaque.

Jia Yang, Xiangjun Pan, Bai Zhang, Yanhong Yan, Yabo Huang, Adam K Woolf, Jonathan H Gillard, Zhongzhao Teng, Pinjing Hui

Open access · hybridAbstract read
In one paragraph

Article in European radiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
4.4field-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

32 citing papers in PubMed, 51 citations in OpenAlex.

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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 2 institutions in 2 countries.

Jia YangDepartment of Stroke Center, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
Xiangjun PanDepartment of Stroke Center, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
Bai ZhangDepartment of Stroke Center, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
Yanhong YanDepartment of Stroke Center, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
Yabo HuangDepartment of Stroke Center, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
Adam K WoolfDepartment of Medicine, University of Cambridge, Cambridge, UK.
Jonathan H GillardDepartment of Radiology, University of Cambridge, Level 5, Box 218, Addenbrooke's Hospital, Hills Rd., Cambridge, CB2 0QQ, UK.
Zhongzhao TengDepartment of Radiology, University of Cambridge, Level 5, Box 218, Addenbrooke's Hospital, Hills Rd., Cambridge, CB2 0QQ, UK. zt215@cam.ac.uk.ORCID http://orcid.org/0000-0003-3973-6157
Pinjing HuiDepartment of Stroke Center, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China. pinjing-hui@163.com.
Soochow University · CNUniversity of Cambridge · GB

Funding

high-level talent selection and training project of the 10th batch of "top six talents" in Jiangsu No. 2013-WSW-045Jiangsu Provincial Science and Technology Department No. BE2016670national key research and development plan No. 2017YFC0114302people's livelihood technology demonstration project of Suzhou No. SS201714province cadre health care research project of Jiangsu No. BJ17010
6 · The paper itself

Abstract

objectiveIntraplaque hemorrhage (IPH) and ulceration of carotid atherosclerotic plaques have been associated with vulnerability while calcification has been conventionally thought protective. However, studies suggested calcification size and location may increase plaque vulnerability. This study explored the association between calcium configurations and ulceration with IPH.

methodsOne hundred thirty-seven consecutive symptomatic patients scheduled for carotid endarterectomy were recruited. CTA and CTP were performed prior to surgery. Plaque samples were collected for histology. According to the location, calcifications were categorized into superficial, deep and mixed types; according to the size and number, calcifications were classified as thick and thin, multiple and single.

resultsSeventy-one plaques had IPH (51.8%) and 83 had ulceration (60.6%). The appearance of IPH and ulceration was correlated (r = 0.49; p < 0.001). The incidence of multiple, superficial and thin calcifications was significantly higher in lesions with IPH and ulceration compared with those without. After adjusting factors including age, stenosis and ulceration, the presence of calcification [OR (95% CI), 3.0 (1.1-8.2), p = 0.035], multiple calcification [3.9 (1.4-10.9), p = 0.009] and superficial calcification [3.4 (1.1-10.8), p = 0.001] were all associated with IPH. ROC analysis showed that the AUC of superficial and multiple calcifications in detecting IPH was 0.63 and 0.66, respectively (p < 0.05). When the ulceration was combined, AUC increased significantly to 0.82 and 0.83, respectively. Results also showed that patients with lesions of both ulceration and IPH have significantly reduced brain perfusion in the area ipsilateral to the infarction.

conclusionsSuperficial and multiple calcifications and ulceration were associated with carotid IPH, and they may be a surrogate for higher risk lesions. KEY POINTS: • CTA-defined superficial and multiple calcifications in carotid atherosclerotic plaques are independently associated with the presence of intraplaque hemorrhage. • The combination of superficial and multiple calcifications and ulceration is highly predictive of carotid intraplaque hemorrhage. • Patients with lesions of both ulceration and intraplaque hemorrhage have significantly reduced brain perfusion in the area ipsilateral to the infarction.

Indexed as

Carotid ArteriesAgedCalcinosisCarotid StenosisComputed Tomography AngiographyEndarterectomy, CarotidFemaleHemorrhageHumansMalePlaque, AtheroscleroticROC CurveArteryAtherosclerosisCalciumStroke

Identifiers

PMID29876705
PMCPMC6223859
OpenAlexW2807639941

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.