The relationship of flow velocities to vessel diameters differs between extracranial carotid and vertebral arteries of stroke patients

Owolabi, Mayowa; Agunloye, Atinuke M; Ogunniyi, Adesola

doi:10.1002/jcu.22053

Cited by 13 publications

(9 citation statements)

References 19 publications

(73 reference statements)

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“…In a study of blood flow rates that utilized triplex ultrasonography, the mean blood flow rate of the common carotid artery, which has a diameter of 5.4–7.5 mm, was found to be 48.2 cm s −1 (minimum 29.0 cm s −1 , maximum 67.0 cm s −1 ), whilst the mean blood flow rate of the vertebral artery, which has a diameter of 2.3–3.8 mm, was found to be 31.4 cm s −1 (minimum 17.4 cm s −1 , maximum 45.4 cm s −1 ) (Owolabi et al . ). Moreover, in another study that used a duplex colour Doppler imager, the authors concluded that there was a positive and linear correlation between vessel diameter and blood flow rate (Stoner et al .…”

Section: Discussionmentioning

confidence: 97%

“…, Owolabi et al . ). Vessel diameters are controlled by systemic and/or local factors of each patient and cannot be controlled by the examiner.…”

Section: Discussionmentioning

confidence: 97%

“…Vessel diameter and blood pressure might be the most critical factors that affect pulp blood flow velocity (Stoner et al 2004, Owolabi et al 2014. Vessel diameters are controlled by systemic and/or local factors of each patient and cannot be controlled by the examiner.…”

Section: Discussionmentioning

confidence: 99%

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Measurement of pulp blood flow rates in maxillary anterior teeth using ultrasound Doppler flowmetry

Cho

Park

2014

Int Endodontic J

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Section: Discussionmentioning

confidence: 97%

“…, Owolabi et al . ). Vessel diameters are controlled by systemic and/or local factors of each patient and cannot be controlled by the examiner.…”

Section: Discussionmentioning

confidence: 97%

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Measurement of pulp blood flow rates in maxillary anterior teeth using ultrasound Doppler flowmetry

Cho

Park

2014

Int Endodontic J

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“…Carotid artery disease appears to be uncommon in stroke patients in Sub Saharan Africa [4]. In previous studies, carotid atherosclerosis had been associated with stroke among Africans [5] [6] [7]. Patients with a first ischemic stroke are at high risk of developing recurrent stroke due to carotid atherosclerotic plaque rupture [8].…”

Section: Introductionmentioning

confidence: 99%

Extracranial Carotid Atherosclerosis and Acute Ischemic Stroke in a Tertiary Hospital in Burkina Faso

Dabilgou¹,

Dravé²,

Kyelem³

et al. 2019

WJNS

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Objective: To determine the prevalence and risk factors of carotid atherosclerosis among ischemic stroke patients in a tertiary hospital in Burkina Faso. Methodology: This was a descriptive and analytical retrospective study of patients admitted at neurology department of Yalgado Ouedraogo University Teaching Hospital with ischemic stroke and cerebral large vessel atherosclerosis in the period from January 1, 2012 to December 31, 2016. Results: The prevalence of extracranial carotid atherosclerosis was 23.9%. The mean age of patients was 63.5 years (Range 31-90 years). The study population included 65% of men and 35% of women. Hypertension was the most common vascular risk factor (75.6%). Stroke was mostly located in the anterior circulation in 23.9%. Low HDL-C was present in 52% of patients. The majority of plaque was homogeneous (85.2%). Plaque were located in carotid bulbar artery (38.5%) followed by common carotid artery (28.2%) and extracranial internal carotid artery (18.6%). According to cerebral lesion, plaque was bilateral in 45.5%, ipsilateral in 42.3% and contralateral in 12.1% of cases. Tight stenosis was found in 30.1% of patients. There was a significant link between male gender and tight stenosis (p = 0.004). Aspirin was the most antiplatelet therapy used (95.5%). Statin therapy was used in 91% of patients. The mean duration of hospitalization was 12.5 days with a mortality rate of 7.1%. Conclusions: Our study showed that extra carotid atherosclerosis was the most common cause of ischemic stroke in Burkina Faso. Man gender was most represented than women.

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“…Previously, the Hagen–Poiseuille equation was the most common method to evaluate WSS reasonably and accurately [ 15 ]. But this technique could not evaluate local WSS, especially WSS near irregular intravascular plaques [ 16 ]. Therefore, Hagen–Poiseuille equation is not feasible as a clinical method to evaluate local WSS around plaque by obtaining stable vessel diameter and velocity [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of spatial distribution and characterization of wall shear stress in carotid sinus based on two-dimensional color Doppler imaging

Zhang

Ding

2018

BioMed Eng OnLine

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ObjectiveThis study aims to use a wall shear stress (WSS) quantitative analysis software to analyze and evaluate the carotid sinus WSS spatial distribution and characteristics in intima-media thickness (IMT) normal and thickening group by using two-dimensional color doppler flow imaging (CDFI) so as to assist clinicians to predict the location and risk of plaque formation.MethodsAccording to IMT, 50 subjects was selected as IMT thickening group and 50 subjects as IMT normal group from subjects who had a carotid ultrasound examination in Shanghai East hospital during October 2016 to October 2017. This study presents the spatial distribution of the carotid sinus WSS based on the WSS quantitative analysis software and compared the spatial distribution and characteristics of the carotid sinus WSS between IMT thickening group and IMT normal group through two- and three-dimensional WSS maps and a fused WSS image.ResultsThe distributional regularity of WSS in both two group was: carotid sinus < common carotid artery (CCA) < internal carotid artery (ICA) and posterior-interior wall of the carotid sinus < the anterior-lateral wall of the carotid sinus. Furthermore, the WSS of CCA, ICA, the anterior-lateral proximal wall of the carotid sinus, the anterior-lateral distal wall of the carotid sinus, the posterior-interior proximal wall of the carotid sinus, and the posterior-interior distal wall of the carotid sinus in IMT thickening group was lower than the corresponding part of IMT normal group (P < 0.05).ConclusionIn summary, this WSS quantitative analysis framework by two-dimensional CDFI can measure and reflect the carotid sinus WSS spatial distribution and characteristics more accurately and visually. As a convenient tool, it may be used for clinical prediction of the plaque formation in carotid sinus in the future.

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The relationship of flow velocities to vessel diameters differs between extracranial carotid and vertebral arteries of stroke patients

Abstract: Our study demonstrated different diameter/flow relationships in the carotid and the vertebral arteries of stroke patients, which may suggest pathologic changes in the adaptive processes governing vessel diameter and growth, especially in the carotid arteries.

Cited by 13 publications

References 19 publications

Measurement of pulp blood flow rates in maxillary anterior teeth using ultrasound Doppler flowmetry

Measurement of pulp blood flow rates in maxillary anterior teeth using ultrasound Doppler flowmetry

Extracranial Carotid Atherosclerosis and Acute Ischemic Stroke in a Tertiary Hospital in Burkina Faso

Evaluation of spatial distribution and characterization of wall shear stress in carotid sinus based on two-dimensional color Doppler imaging

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