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Associations of carotid artery flow parameters with MRI markers of cerebral small vessel disease and patterns of brain atrophy

Ellström, Katarina LU ; Abul-Kasim, Kasim LU ; Siennicki-Lantz, Arkadiusz LU orcid and Elmståhl, Sölve LU (2023) In Journal of Stroke & Cerebrovascular Diseases 32(3).
Abstract

OBJECTIVES: A growing body of evidence links age related brain pathologies to systemic vascular processes. We aimed to study the prevalence and interrelations between magnetic resonance imaging (MRI) markers of cerebral small vessel disease and patterns of brain atrophy, and their association to carotid duplex ultrasound flow parameters.

MATERIALS AND METHODS: We investigated a population based randomised cohort of older adults (n=391) aged 70-87, part of the Swedish Good Aging in Skåne Study. Peak systolic and end diastolic velocities of the carotid arteries were measured by ultrasound, and resistivity- and pulsatility indexes were calculated. Subjects with increased peak systolic velocity indicating carotid stenosis were... (More)

OBJECTIVES: A growing body of evidence links age related brain pathologies to systemic vascular processes. We aimed to study the prevalence and interrelations between magnetic resonance imaging (MRI) markers of cerebral small vessel disease and patterns of brain atrophy, and their association to carotid duplex ultrasound flow parameters.

MATERIALS AND METHODS: We investigated a population based randomised cohort of older adults (n=391) aged 70-87, part of the Swedish Good Aging in Skåne Study. Peak systolic and end diastolic velocities of the carotid arteries were measured by ultrasound, and resistivity- and pulsatility indexes were calculated. Subjects with increased peak systolic velocity indicating carotid stenosis were excluded from analysis. Nine MRI findings were rated by visual scales: white matter changes, pontine white matter changes, microbleeds, lacunar infarctions, medial temporal lobe atrophy, global cortical atrophy, parietal atrophy, precuneus atrophy and central atrophy.

RESULTS: MRI pathologies were found in 80% of subjects. Mean end diastolic velocity in common carotid arteries was inversely associated with white matter hyperintensities (OR=0.92; p=0.004), parietal lobe atrophy (OR=0.94; p=0.039), global cortical atrophy (OR=0.90; p=0.013), precuneus atrophy (OR=0.94; p=0.022), "number of CSV pathologies" (β=-0.07; p<0.001) and "MRI-burden score" (β=-0.11; p<0.001), after adjustment for age and sex. The latter three were also associated with pulsatility and resistivity indexes.

CONCLUSIONS: Low carotid end diastolic velocity, as well as increased carotid resistivity and pulsatility, were associated with signs of cerebral small vessel disease and patterns of brain atrophy, indicating a vascular component in the process of brain aging.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Stroke & Cerebrovascular Diseases
volume
32
issue
3
article number
106981
publisher
Elsevier
external identifiers
  • pmid:36657270
  • scopus:85146463906
ISSN
1532-8511
DOI
10.1016/j.jstrokecerebrovasdis.2023.106981
language
English
LU publication?
yes
additional info
Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.
id
e95831ba-029f-4c5c-9ebb-0f0663e6a484
date added to LUP
2023-02-02 16:37:28
date last changed
2024-06-15 01:22:54
@article{e95831ba-029f-4c5c-9ebb-0f0663e6a484,
  abstract     = {{<p>OBJECTIVES: A growing body of evidence links age related brain pathologies to systemic vascular processes. We aimed to study the prevalence and interrelations between magnetic resonance imaging (MRI) markers of cerebral small vessel disease and patterns of brain atrophy, and their association to carotid duplex ultrasound flow parameters.</p><p>MATERIALS AND METHODS: We investigated a population based randomised cohort of older adults (n=391) aged 70-87, part of the Swedish Good Aging in Skåne Study. Peak systolic and end diastolic velocities of the carotid arteries were measured by ultrasound, and resistivity- and pulsatility indexes were calculated. Subjects with increased peak systolic velocity indicating carotid stenosis were excluded from analysis. Nine MRI findings were rated by visual scales: white matter changes, pontine white matter changes, microbleeds, lacunar infarctions, medial temporal lobe atrophy, global cortical atrophy, parietal atrophy, precuneus atrophy and central atrophy.</p><p>RESULTS: MRI pathologies were found in 80% of subjects. Mean end diastolic velocity in common carotid arteries was inversely associated with white matter hyperintensities (OR=0.92; p=0.004), parietal lobe atrophy (OR=0.94; p=0.039), global cortical atrophy (OR=0.90; p=0.013), precuneus atrophy (OR=0.94; p=0.022), "number of CSV pathologies" (β=-0.07; p&lt;0.001) and "MRI-burden score" (β=-0.11; p&lt;0.001), after adjustment for age and sex. The latter three were also associated with pulsatility and resistivity indexes.</p><p>CONCLUSIONS: Low carotid end diastolic velocity, as well as increased carotid resistivity and pulsatility, were associated with signs of cerebral small vessel disease and patterns of brain atrophy, indicating a vascular component in the process of brain aging.</p>}},
  author       = {{Ellström, Katarina and Abul-Kasim, Kasim and Siennicki-Lantz, Arkadiusz and Elmståhl, Sölve}},
  issn         = {{1532-8511}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{3}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Stroke & Cerebrovascular Diseases}},
  title        = {{Associations of carotid artery flow parameters with MRI markers of cerebral small vessel disease and patterns of brain atrophy}},
  url          = {{http://dx.doi.org/10.1016/j.jstrokecerebrovasdis.2023.106981}},
  doi          = {{10.1016/j.jstrokecerebrovasdis.2023.106981}},
  volume       = {{32}},
  year         = {{2023}},
}