Ultrasoundis the most common screening test used to determine whether carotid artery stenosis (narrowing) is present. Sound waves are used to understand the anatomy of the artery to see whether narrowing is present. Adding Doppler technology, the amount of blood flow and its velocity can be measu...
If 2 ultrasounds were performed in the similar time period, the second one was used if informative and distinct from the first one. If the stenosis category from the second ultrasound was less than 70%, that artery was excluded from the current study. To stratify a subcategory of high-...
Methods:We identified all patients with ICA stenosis >70% based on hemodynamic consensus criteria (peak systolic velocity >230cm/s) in our peripheral vascular laboratory from January 2013 through December 2016. With a retrospective chart review, demographics, comorbid conditions, medications, ...
P2.10 ASSESSMENT OF CAROTID PULSE WAVE VELOCITY BY ULTRASOUND: A WAVE INTENSITY ANALYSIS-BASED APPROACH N. Lascio a, R. Bruno a, F. Stea a,b, V. Gemignani a, E. Bianchini a, L. Ghiadoni b, F. Faita a aNational Council of Research, Pisa, Italy bUniversity of Pisa, Pisa, Italy ...
Ultrasound examination and HR-MRI were performed within 1 month. The plaque at the level of the carotid bifurcation was defined according to the Mannheim consensus (6) as a focal structure that encroaches into the arterial lumen of at least 0.5 mm or 50% of the surrounding intima-media thickn...
blood flow velocity ≥125 cm/s and vertical artery peak systolic blood flow velocity of ≥170 cm/s in the common carotid artery or internal carotid artery. A carotid artery stenosis (≥50%) was graded based on recommendations from the Society of Radiologists in Ultrasound Consensus ...
(B) The inlet velocity and outlet pressure profiles in three cardiac cycles. Full size image Fluid properties and boundary conditions In the blood flow simulation of the carotid artery, blood was considered incompressible, non-Newtonian, and the fluid regime was laminar. The Carreau–Yasuda model ...
Ultrasoundis the most common screening test used to determine whether carotid artery stenosis (narrowing) is present. Sound waves are used to understand the anatomy of the artery to see whether narrowing is present. Adding Doppler technology, the amount of blood flow and its velocity can be measu...
However, the need for temporal ultrasound probe placement limits surgical and anesthetic access to the head. Cerebral blood flow can also be measured by the intravenous or intracarotid administration of radioactive xenon or krypton. This method requires considerable expertise for the interpretation of ...
velocity of 350 cm/s or greater or a NASCET grade of 90% to 99% lesion on axial imaging. Exclusion criteria were as follows: (1) patients with no active health plan membership for 1 year prior to the index study; (2) nonatherosclerotic lesions of the carotid artery (eg, dissection, ...