18 May 2007
Doppler ultrasound criteria of physiological flow in asymmetrical vertebral arteriesMarek Mysior, Ludomir Stefańczyk
Med Sci Monit 2007; 13(1): 73-77 :: ID: 482385
Background: Numerous publications have documented the usefulness of carotid ultrasonography. However, few studies report on criteria of flow evaluation in vertebral arteries. One reason is the greater anatomical variety of vertebral arteries, particularly the often encountered diameter asymmetry between sides. The purpose of this study was to assess the dependence of hemodynamics in vertebral arteries on their side-to-side diameter asymmetry.Material and Methods: Prospective color Doppler ultrasonography examinations of the vertebral arteries were performed on 113 adult volunteers (69 females, 44 males, mean age: 29.1±6.9 SD), free of symptoms of vertebrobasilar insufficiency, atherosclerotic lesions, anatomic anomalies, or signs of significant stenosis in spectral Doppler. The subjects were divided into four groups according to the degree of asymmetry between sides.
Results: There were no statistically significant differences in the hemodynamics of the arteries with side-to-side diameter asymmetry of less than 25% (or 0.5 mm). In the remaining three groups, flow parameters differed considerably between sides. End diastolic velocity revealed the greatest dependence on diameter asymmetry. Conclusions: Assessment of the hemodynamics of vertebral arteries should take side-to-side asymmetry into consideration. Arteries differing in diameter by up to 25% or 0.5 mm can be considered symmetrical. The most vulnerable flow parameter to side-to-side diameter asymmetry is the end diastolic velocity.
Keywords: Blood Flow Velocity - physiology, Hemodynamics, Regional Blood Flow, Vertebral Artery - ultrasonography
01 March 2023 : EditorialEditorial: Global Surveillance of Highly Pathogenic Avian Influenza Viruses in Poultry, Wild Birds, and Mammals to Prevent a Human Influenza Pandemic
Med Sci Monit 2023; 29:e939968
03 March 2023 : Database AnalysisReinfections from SARS-CoV-2: A Retrospective Study from the Gyncentrum Genetic Laboratory in Sosnowiec, Po...
Med Sci Monit In Press; DOI: 10.12659/MSM.939452
09 February 2023 : Clinical ResearchEvaluation of Health-Related Quality of Life and Mental Health in 729 Medical Students in Indonesia During ...
Med Sci Monit 2023; 29:e938892
19 January 2023 : Clinical ResearchDetermining the Impact of the COVID-19 Pandemic on Dental Care in the Serbian Adult Population: An Online Q...
Med Sci Monit 2023; 29:e939238
27 December 2022 : Clinical ResearchEffect of Physiotherapy to Correct Rounded Shoulder Posture in 30 Patients During the COVID-19 Pandemic in ...
Med Sci Monit 2022; 28:e938926
22 Mar 2023 : Special reportOne Year On: Poland’s Public Health Initiatives and National Response to Millions of Refugees from Ukraine
Med Sci Monit In Press; DOI: 10.12659/MSM.940223
22 Mar 2023 : Clinical ResearchValue of IL-1β and IL-23 in Predicting 28-Day Mortality Due to Sepsis: A Retrospective Study
Med Sci Monit In Press; DOI: 10.12659/MSM.940163
21 Mar 2023 : Clinical ResearchEfficacy of Direct Anterior Approach Versus Posterior Lateral Approach for Total Hip Replacement in Patient...
Med Sci Monit In Press; DOI: 10.12659/MSM.939682
21 Mar 2023 : Clinical ResearchIntraoperative Hypotension and Its Association with Postoperative Acute Kidney Injury in Patients Undergoin...
Med Sci Monit In Press; DOI: 10.12659/MSM.938945
Most Viewed Current Articles
13 Nov 2021 : Clinical ResearchAcceptance of COVID-19 Vaccination and Its Associated Factors Among Cancer Patients Attending the Oncology ...
Med Sci Monit 2021; 27:e932788
30 Dec 2021 : Clinical ResearchRetrospective Study of Outcomes and Hospitalization Rates of Patients in Italy with a Confirmed Diagnosis o...
Med Sci Monit 2021; 27:e935379
08 Mar 2022 : Review articleA Review of the Potential Roles of Antioxidant and Anti-Inflammatory Pharmacological Approaches for the Man...
Med Sci Monit 2022; 28:e936292
01 Jan 2022 : EditorialEditorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...
Med Sci Monit 2022; 28:e935952