18 May 2007
Doppler ultrasound criteria of physiological flow in asymmetrical vertebral arteries
Marek Mysior, Ludomir StefańczykMed Sci Monit 2007; 13(1): 73-77 :: ID: 482385
Abstract
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
Editorial
01 April 2024 : Editorial
Editorial: Forty Years of Waiting for Prevention and Cure of HIV Infection – Ongoing Challenges and Hopes for Vaccine Development and Overcoming Antiretroviral Drug ResistanceDOI: 10.12659/MSM.944600
Med Sci Monit 2024; 30:e944600
In Press
05 Mar 2024 : Clinical Research
Effects of Thermal Insulation on Recovery and Comfort of Patients Undergoing Holmium Laser LithotripsyMed Sci Monit In Press; DOI: 10.12659/MSM.942836
05 Mar 2024 : Clinical Research
Role of Critical Shoulder Angle in Degenerative Type Rotator Cuff Tears: A Turkish Cohort StudyMed Sci Monit In Press; DOI: 10.12659/MSM.943703
06 Mar 2024 : Clinical Research
Comparison of Outcomes between Single-Level and Double-Level Corpectomy in Thoracolumbar Reconstruction: A ...Med Sci Monit In Press; DOI: 10.12659/MSM.943797
21 Mar 2024 : Meta-Analysis
Economic Evaluation of COVID-19 Screening Tests and Surveillance Strategies in Low-Income, Middle-Income, a...Med Sci Monit In Press; DOI: 10.12659/MSM.943863
Most Viewed Current Articles
17 Jan 2024 : Review article
Vaccination Guidelines for Pregnant Women: Addressing COVID-19 and the Omicron VariantDOI :10.12659/MSM.942799
Med Sci Monit 2024; 30:e942799
14 Dec 2022 : Clinical Research
Prevalence and Variability of Allergen-Specific Immunoglobulin E in Patients with Elevated Tryptase LevelsDOI :10.12659/MSM.937990
Med Sci Monit 2022; 28:e937990
16 May 2023 : Clinical Research
Electrophysiological Testing for an Auditory Processing Disorder and Reading Performance in 54 School Stude...DOI :10.12659/MSM.940387
Med Sci Monit 2023; 29:e940387
01 Jan 2022 : Editorial
Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...DOI :10.12659/MSM.935952
Med Sci Monit 2022; 28:e935952