Evidence map›Paper›PMID 30242546›Full record

ArticleNeurosurgical review2020

Hemodynamic findings associated with intraoperative appearances of intracranial aneurysms.

Pengjun Jiang, Qingyuan Liu, Jun Wu, Xin Chen, Maogui Li, Fan Yang, Zhengsong Li, Shuzhe Yang, Rui Guo, Bin Gao and 4 more

Abstract read
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In one paragraph

Article in Neurosurgical review, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

15 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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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

14 authors.

Pengjun JiangDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China.
Qingyuan LiuDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China.
Jun WuDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China.
Xin ChenDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China.
Maogui LiDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China.
Fan YangDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China.
Zhengsong LiDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China.
Shuzhe YangDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China.
Rui GuoDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China.
Bin GaoSchool of Life Science and BioEngineering, Beijing University of Technology, Beijing, People's Republic of China.
Yong CaoDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China.
Rong WangDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China.
Fei DiDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China. difeittyy@aliyun.com.
Shuo WangDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China. captain9858@126.com.ORCID http://orcid.org/0000-0003-4919-5390

Funding

National Key Research and Development Program of National Key Basic Research Development of China 2016YFC1301800National Natural Science Foundation of China 81471210National Natural Science Foundation of China 81671129
6 · The paper itself

Abstract

Intracranial aneurysms can be classified into thick-walled aneurysms and thin-walled aneurysms according to their intraoperative appearances; previous publications have revealed that different kinds of intraoperative appearances were associated with intraoperative rupture and postoperative complications. Here, we tried to evaluate the association between hemodynamic features and aneurysm wall appearance using computational fluid dynamics (CFD) method. Forty-one consecutive patients with unruptured middle cerebral artery (MCA) bifurcation aneurysms were included in our study. Based on the appearances observed under the microscope, aneurysms were classified into two different types: thick-walled and thin-walled aneurysms. Preoperative computed tomographic angiography (CTA) was used for geometry reconstruction and CFD analysis. Morphological and hemodynamic parameters were compared between the two groups. Eighteen aneurysms were classified as thick-walled atherosclerotic ones according to their intraoperative appearances. Compared with thin-walled aneurysms, aneurysms with atherosclerotic changes had larger geometry parameters (aneurysm depth, maximum height, diameter, aspect ratio, size ratio), lower wall shear stress (WSS), and larger low WSS area ratio (LSAR). Thick-walled aneurysms characterized by atherosclerotic changes are associated with low WSS and larger LSAR. CFD may be a useful tool for discriminating the intraoperative appearance of cerebral aneurysms.

Indexed as

AdultAgedComputed Tomography AngiographyFemaleHemodynamicsHumansHydrodynamicsIntracranial AneurysmMaleMiddle AgedRegional Blood FlowRetrospective StudiesStress, MechanicalYoung AdultAtherosclerotic changeCerebral aneurysmHemodynamicsIntraoperative appearanceWall shear stress

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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.