Intraobserver reproducibility and interobserver agreement of ultrasonic flowmetry using the velocity profile color doppler method in the common carotid artery

2003 ◽  
Vol 30 (1) ◽  
pp. 3-11 ◽  
Author(s):  
Nobuyuki Taniguchi ◽  
Ryuuichi Takano ◽  
Kouichi Itoh ◽  
Syukuko Kaneko ◽  
Akira Onoguchi ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Velocity Profile ◽  
Common Carotid Artery ◽  
Interobserver Agreement ◽  
Color Doppler ◽  
Doppler Method ◽  
Intraobserver Reproducibility ◽  
The Common

An Angle-Independent Cross-Sectional Doppler Method for Flow Estimation in the Common Carotid Artery

2020 ◽  
Vol 67 (8) ◽  
pp. 1513-1524
Author(s):  
Luuk van Knippenberg ◽  
Ruud J. G. van Sloun ◽  
Sergei Shulepov ◽  
R. Arthur Bouwman ◽  
Massimo Mischi
Keyword(s):  
Carotid Artery ◽  
Common Carotid Artery ◽  
Cross Sectional ◽  
Flow Estimation ◽  
Doppler Method ◽  
The Common

Pseudoaneurysm after ICD battery replacement

VASA ◽  
2007 ◽  
Vol 36 (1) ◽  
pp. 45-49
Author(s):  
Schulz ◽  
Lehmkuhl ◽  
Zipfel ◽  
Hetzer
Keyword(s):  
Carotid Artery ◽  
Common Carotid Artery ◽  
Doppler Sonography ◽  
Histopathological Examination ◽  
Color Doppler ◽  
Morphological Characteristics ◽  
Sudden Onset ◽  
History Of ◽  
Traumatic Origin ◽  
The Common

False aneurysms of the extracranial carotid arteries are rare and mainly of traumatic origin. We report on a patient who presented with a sudden onset mass in his right neck 2 weeks after routine replacement of his ICD battery. He had received systemic anticoagulation since an aortic valve replacement 5 years before. By color Doppler sonography the mass was identified as a partly thrombosed false aneurysm originating from the common carotid artery. As no spontaneous resolution occurred during the following days the aneurysm was removed surgically 5 days later without further complications. However no connection to the common carotid artery was found at surgery. Yet in the histopathological examination the specimen showed the morphological characteristics of a pseudoaneurysm. There was no history of neck-trauma and no attempted vascular access during the recent operation.

Is Flow in the Common Carotid Artery Fully-Developed?

2008 ◽  
Author(s):  
Joyce Xie ◽  
Matthew D. Ford ◽  
David A. Steinman
Keyword(s):  
Carotid Artery ◽  
Velocity Profile ◽  
Common Carotid Artery ◽  
Velocity Profiles ◽  
Blood Velocity ◽  
Shear Stresses ◽  
Velocity Data ◽  
Flow Rates ◽  
The Common

It is usually assumed, in both clinical and experimental settings, that blood velocity profiles in the common carotid artery (CCA) are fully-developed. This allows for a simpler estimation of CCA flow rates or wall shear stresses (WSS) from limited velocity data, such as peak velocities acquired using Doppler ultrasound (DUS) [1]. However, the assumption of a long, straight CCA may be incorrect, as the CCA does possess some curvature [2], which may alter the velocity profile from the assumed Poiseuille or Womersley shapes, and thus lead to incorrect inferences about flow rate or WSS. Consequently, this may have an impact on our understanding and diagnoses of cardiovascular related diseases. The aim of this study was to characterize the real shape of CCA velocity profiles in vivo.

Characterization of Common Carotid Artery Curvature and Its Impact on Velocity Profile Shape

2010 ◽  
Author(s):  
Amir Manbachi ◽  
Yiemeng Hoi ◽  
David A. Steinman
Keyword(s):  
Carotid Artery ◽  
Velocity Profile ◽  
Common Carotid Artery ◽  
Carotid Artery Disease ◽  
Engineering Studies ◽  
Computational Fluid Dynamics Cfd ◽  
The Common ◽  
Artery Disease

Clinical and engineering studies of carotid artery disease typically assume that the common carotid artery (CCA), proximal to the bifurcation, is relatively straight, at least enough to assume the velocity profile is fully-developed (i.e., Poiseuille or Womersley profile) or at least axisymmetric. However, a recent study from our group has shown the surprising presence, in vivo, of strongly skewed velocity profiles in what appeared to be only mildly curved CCAs [1]. A computational fluid dynamics (CFD) study from our group also demonstrated strong velocity profile skewing in an idealized geometry possessing subtle wiggles similar to those observed in the CCA [2].

scholarly journals Idiopathic Free-Floating Thrombus of the Common Carotid Artery

2002 ◽  
Vol 29 (1) ◽  
pp. 97-99 ◽  
Author(s):  
Brian Silver ◽  
Irene Gulka ◽  
Michael Nicolle ◽  
Ramesh Sahjpaul ◽  
Vladimir Hachinski
Keyword(s):  
Carotid Artery ◽  
Common Carotid Artery ◽  
Multimodal Imaging ◽  
Doppler Ultrasonography ◽  
Resonance Imaging ◽  
Wall Defect ◽  
Floating Thrombus ◽  
Weighted Magnetic Resonance Imaging ◽  
The Common ◽  
One Year

Background:The observation of an intraluminal common carotid artery thrombus overlying a wall defect at ultrasonography or angiography is unusual. To our knowledge, there are no previous reports of a free-floating thrombus in the common carotid artery.Case Report:A 45-year-old woman who was previously healthy and on no medications presented with acute hemiparesis and aphasia. Following testing that included carotid duplex and trancranial Doppler ultrasonography, diffusion-weighted magnetic resonance imaging, and digital subtraction angiography, the patient underwent emergency open embolectomy. No underlying wall defect was seen at the time of imaging or surgery. No obvious hypercoagulable state could be identified. Her NIH Stroke Scale score improved from 26 at admission to 2 at three months and 1 at one year.Conclusions:Multimodal imaging may have improved diagnosis and management in this patient with a unique finding. The source of the thrombus remains obscure.

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