Funding for this research was provided by:
Knut och Alice Wallenbergs Stiftelse (-)
Region Västerbotten (-)
Research fund for neurological research at the university hospital of northern Sweden (-)
The Swedish Stroke fund (-)
The Northern Swedish Stroke fund (-)
The Swedish Medical Association (-)
Article History
Received: 15 October 2019
Revised: 20 November 2019
Accepted: 16 December 2019
First Online: 31 January 2020
Compliance with ethical standards
:
: The scientific guarantor of this publication is Elias Johansson.
: The authors of this manuscript declare no relationships with any companies whose products or services may be related to the subject matter of the article.
: No complex statistical methods were necessary for this paper.
: Written informed consent was waived by the Institutional Review Board.
: Institutional Review Board approval was obtained.
: Some study subjects or cohorts have been previously reported in two articles: One describining prevalence and causes of ICA asymmetery with or without stenosis [CitationRef removed], one describing risk of revurrent stroke before carotid revascularization with emphasis on near-occlusion [CitationRef removed]. An additional manuscript is planned for submission in parallel to current submission; topic is how often near-occlusions are detected on ultrasonography (a direct comparison CTA and numerical flow velocity findings, in contrast to current paper, where CTA interpretation is the topic).
: • Cross sectional study• Multicenter study