Systemic Atherosclerosis Relate to Brain Arterial Diameters: The Northern Manhattan Study

Jose Gutierrez, Tatjana Rundek, Ken Cheung, Ahmet Bagci, Noam Alperin, Ralph L Sacco, Clinton B Wright, Mitchell S V Elkind, Marco R. Di Tullio

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Background: Phenotypic expressions of arterial disease vary throughout the body and it is not clear to what extent systemic atherosclerosis influences brain arterial remodeling. We aim to test the hypothesis that systemic atherosclerosis is associated with brain arterial diameters. Methods: Stroke-free participants in the Northern Manhattan Study MRI subcohort in whom carotid ultrasound, transthoracic echocardiogram, and brain MRA (n = 482) were performed were included in this analysis. Brain arterial diameters were measured with semi-automated software as continuous and categorical variables. Ultrasound and echocardiography provided the sum of maximum carotid plaque thickness (sMCPT) and aortic plaque thickness. Associations between brain arterial diameters and aortic and carotid plaque thickness were assessed with semi-parametric generalized additive models. Results: Aortic plaque thickness was inversely and linearly associated with brain arterial diameters (B per mm = -0.073 ± 0.034, p = 0.03), while sMCPT was associated nonlinearly in a u-shaped curve with anterior brain arterial diameters (spline regression χ2 = 9.19, p = 0.02). Coexisting carotid and aortic atherosclerosis were more prevalent in participants with small luminal diameters (40%) compared with participants with average (30%) or with large (13%) luminal diameters, while carotid atherosclerosis without aortic atherosclerosis was more prevalent among participants with large luminal diameters (31%) compared with those with average (12%) or small luminal diameters (2%, p < 0.001 for both trends). Conclusions: We confirmed the hypothesis that systemic arterial disease is associated with brain arterial diameters. Gaining knowledge about the origin of these phenotypic expressions of atherosclerosis in the human body may lead to a better understanding of the cerebrovascular consequences of the systemic arterial disease.

Original languageEnglish (US)
Pages (from-to)124-131
Number of pages8
JournalCerebrovascular Diseases
Volume43
Issue number3-4
DOIs
StatePublished - Apr 1 2017

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Atherosclerosis
Brain
Carotid Artery Diseases
Relate
Human Body
Echocardiography
Software
Stroke

Keywords

  • Atherosclerosis
  • Carotid artery disease
  • Dolichoectasia
  • Intracranial arterial stenosis

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology
  • Cardiology and Cardiovascular Medicine

Cite this

Systemic Atherosclerosis Relate to Brain Arterial Diameters : The Northern Manhattan Study. / Gutierrez, Jose; Rundek, Tatjana; Cheung, Ken; Bagci, Ahmet; Alperin, Noam; Sacco, Ralph L; Wright, Clinton B; Elkind, Mitchell S V; Di Tullio, Marco R.

In: Cerebrovascular Diseases, Vol. 43, No. 3-4, 01.04.2017, p. 124-131.

Research output: Contribution to journalArticle

Gutierrez, Jose ; Rundek, Tatjana ; Cheung, Ken ; Bagci, Ahmet ; Alperin, Noam ; Sacco, Ralph L ; Wright, Clinton B ; Elkind, Mitchell S V ; Di Tullio, Marco R. / Systemic Atherosclerosis Relate to Brain Arterial Diameters : The Northern Manhattan Study. In: Cerebrovascular Diseases. 2017 ; Vol. 43, No. 3-4. pp. 124-131.
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AU - Cheung, Ken

AU - Bagci, Ahmet

AU - Alperin, Noam

AU - Sacco, Ralph L

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AB - Background: Phenotypic expressions of arterial disease vary throughout the body and it is not clear to what extent systemic atherosclerosis influences brain arterial remodeling. We aim to test the hypothesis that systemic atherosclerosis is associated with brain arterial diameters. Methods: Stroke-free participants in the Northern Manhattan Study MRI subcohort in whom carotid ultrasound, transthoracic echocardiogram, and brain MRA (n = 482) were performed were included in this analysis. Brain arterial diameters were measured with semi-automated software as continuous and categorical variables. Ultrasound and echocardiography provided the sum of maximum carotid plaque thickness (sMCPT) and aortic plaque thickness. Associations between brain arterial diameters and aortic and carotid plaque thickness were assessed with semi-parametric generalized additive models. Results: Aortic plaque thickness was inversely and linearly associated with brain arterial diameters (B per mm = -0.073 ± 0.034, p = 0.03), while sMCPT was associated nonlinearly in a u-shaped curve with anterior brain arterial diameters (spline regression χ2 = 9.19, p = 0.02). Coexisting carotid and aortic atherosclerosis were more prevalent in participants with small luminal diameters (40%) compared with participants with average (30%) or with large (13%) luminal diameters, while carotid atherosclerosis without aortic atherosclerosis was more prevalent among participants with large luminal diameters (31%) compared with those with average (12%) or small luminal diameters (2%, p < 0.001 for both trends). Conclusions: We confirmed the hypothesis that systemic arterial disease is associated with brain arterial diameters. Gaining knowledge about the origin of these phenotypic expressions of atherosclerosis in the human body may lead to a better understanding of the cerebrovascular consequences of the systemic arterial disease.

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KW - Carotid artery disease

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KW - Intracranial arterial stenosis

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