Evidence map›Paper›PMID 24831590›Full record

ArticleAJNR. American journal of neuroradiology2014

A novel technique for the measurement of CBF and CBV with robot-arm-mounted flat panel CT in a large-animal model.

O Beuing, A Boese, Y Kyriakou, Y Deuerling-Zengh, B Jöllenbeck, C Scherlach, A Lenz, S Serowy, S Gugel, G Rose and 1 more

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 22% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
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  5. Review
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  7. 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

11 authors at 5 institutions in 3 countries.

O BeuingFrom the Institute of Neuroradiology (O.B., C.S., A.L., S.S., M.S.) oliver.beuing@med.ovgu.de.
A BoeseHealthcare Telematics and Medical Engineering (A.B., S.G., G.R.), Otto von Guericke University, Magdeburg, Germany.
Y KyriakouSiemens AG (Y.K., Y.D.-Z.), Healthcare Sector, Erlangen, Germany.
Y Deuerling-ZenghSiemens AG (Y.K., Y.D.-Z.), Healthcare Sector, Erlangen, Germany.
B JöllenbeckDepartment of Neurosurgery (B.J.).
C ScherlachFrom the Institute of Neuroradiology (O.B., C.S., A.L., S.S., M.S.).
A LenzFrom the Institute of Neuroradiology (O.B., C.S., A.L., S.S., M.S.).
S SerowyFrom the Institute of Neuroradiology (O.B., C.S., A.L., S.S., M.S.).
S GugelHealthcare Telematics and Medical Engineering (A.B., S.G., G.R.), Otto von Guericke University, Magdeburg, Germany.
G RoseHealthcare Telematics and Medical Engineering (A.B., S.G., G.R.), Otto von Guericke University, Magdeburg, Germany.
M SkalejFrom the Institute of Neuroradiology (O.B., C.S., A.L., S.S., M.S.).
Neurology, Inc · USOtto-von-Guericke University Magdeburg · DESiemens (Germany) · DEB. J. Medical College & Sassoon Hospital · INMED Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeEndovascular therapy is an emerging treatment option in patients with acute ischemic stroke and especially in cases presenting late after symptom onset. Information about remaining viable tissue as measured with perfusion imaging is crucial for proper patient selection. The aim of this study was to investigate whether perfusion imaging with C-arm CT in the angiography suite is feasible and provides measurements comparable with ones made by CTP. MATERIALS AND

methodsThe MCA was occluded surgically in 6 sheep. Perfusion studies were performed before surgery, immediately after, and at 3 hours after MCA occlusion by using a robotic flat panel detector C-arm angiographic system. For comparison, conventional CTP was performed at the same time points. Two different protocols with the C-arm CT were tested. Images were analyzed by 2 readers with regard to the presence and size of perfusion abnormalities.

resultsWith C-arm CT, perfusion abnormalities were detected with a high sensitivity and specificity when vessel occlusion was confirmed by criterion standard DSA. No difference was found between lesions sizes measured with the 2 C-arm CT protocols and CTP. Growth of the CBV lesions with time was captured with C-arm CT and CTP.

conclusionsIn this small study, it was feasible to qualitatively measure CBV and CBF by using a flat panel detector angiographic system.

Indexed as

AnimalsCerebral AngiographyCerebrovascular CirculationDisease Models, AnimalInfarction, Middle Cerebral ArteryPerfusion ImagingRoboticsSheepStroke

Identifiers

PMID24831590
PMCPMC7966271
OpenAlexW2100200571

What OpenQuestion 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 OpenQuestion graph.