The relation between vascular risk factors and flow in cerebral perforating arteries. A 7 Tesla MRI study.
Cerebrovasc Dis
; 2024 Feb 09.
Article
in En
| MEDLINE
| ID: mdl-38342090
ABSTRACT
INTRODUCTION:
Cerebral perforating arteries provide blood supply to the deep regions of the brain. Recently, it became possible to measure blood flow velocity and pulsatility in these small arteries. It is unknown if vascular risk factors are related to these measures.METHODS:
We measured perforating artery flow with 2D phase contrast 7 Tesla MRI at the level of the centrum semiovale (CSO) and the basal ganglia (BG) in seventy participants from the Heart Brain Connection study with carotid occlusive disease (COD), vascular cognitive impairment (VCI), or no actual cerebrovascular disease. Vascular risk factors included hypertension, diabetes, hyperlipidemia and smoking.RESULTS:
No consistent relations were found between any of the vascular risk factors and either flow velocity or flow pulsatility, although there was a relation between lower diastolic blood pressure and higher pulse pressure and higher cerebral perforator pulsatility (p=0,045 and p=0,044, respectively) at the BG level. Results were similar in stratified analyses for patients with and without a history of cardiovascular disease, or only COD or VCI.CONCLUSION:
We conclude that, cross-sectionally, cerebral perforating artery flow velocity and pulsatility are largely independent of the presence of common vascular risk factors in a population with a mixed vascular burden.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Type of study:
Etiology_studies
/
Risk_factors_studies
Language:
En
Journal:
Cerebrovasc Dis
/
Cerebrovasc. dis
/
Cerebrovascular diseases
Journal subject:
ANGIOLOGIA
/
CEREBRO
Year:
2024
Document type:
Article
Country of publication:
Suiza