scholarly journals Optical coherence tomography of traumatic aneurysms of the internal carotid artery: report of 2 cases

2016 ◽  
Vol 124 (2) ◽  
pp. 305-309 ◽  
Author(s):  
Christoph J. Griessenauer ◽  
Paul M. Foreman ◽  
John P. Deveikis ◽  
Mark R. Harrigan
Keyword(s):  
Optical Coherence Tomography ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Thrombus Formation ◽  
Imaging Modality ◽  
Trauma Patients ◽  
Optical Coherence ◽  
Traumatic Aneurysm ◽  
Traumatic Aneurysms

The pathophysiology of extracranial traumatic aneurysm formation has not been fully elucidated. Intraarterial optical coherence tomography (OCT), an imaging modality capable of micrometer cross-sectional resolution, was used to evaluate patients presenting with saccular traumatic aneurysms of the internal carotid artery (ICA). Two consecutive trauma patients diagnosed with saccular traumatic aneurysms of the cervical ICA, per the institutional screening protocol for traumatic cerebrovascular injury, underwent digital subtraction angiography (DSA) with OCT. Optical coherence tomography demonstrated disruption of the intima with preservation and stretching of the more peripheral layers. In 1 patient the traumatic aneurysm was associated with thrombus formation and a separate, more proximal dissection not visible on CT angiography (CTA) or DSA. Imaging with OCT indicates that saccular traumatic aneurysms may develop from disruption of the intima with at least partial preservation of the media and adventitia. This provides in vivo evidence that saccular traumatic aneurysms result from a partial arterial wall tear rather than complete disruption. Interestingly, OCT was also able to detect arterial injury and thrombi not visible on CTA or DSA.

scholarly journals Severe Recurrent Epistaxis Due to Ruptured Non-Traumatic Aneurysm of The Internal Carotid Artery

1978 ◽  
Vol 71 (4) ◽  
pp. 355-362 ◽  
Author(s):  
Makoto Sakatsume ◽  
Akira Kikuta ◽  
Isao Yoshida ◽  
Yoshitsugu Ogawa ◽  
Shigeo Ise
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Traumatic Aneurysm ◽  
Recurrent Epistaxis

scholarly journals Levels of agreement in the measurements of carotid artery ultrasound across a regional vascular network

Ultrasound ◽  
2018 ◽  
Vol 26 (2) ◽  
pp. 101-109 ◽  
Author(s):  
Mervyn Alexander McKenna ◽  
Michelle Clare Bonfield ◽  
Teresa Robinson
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Common Carotid Artery ◽  
Internal Carotid ◽  
Carotid Artery Disease ◽  
Imaging Modality ◽  
Peak Systolic Velocity ◽  
Vascular Network ◽  
Diastolic Velocity ◽  
Spectral Doppler

Introduction Duplex ultrasound is often the sole imaging modality used in diagnosing carotid artery disease. However, the reproducibility and repeatability of scientists in determining the peak systolic velocity and end diastolic velocity of the internal carotid artery and common carotid artery (CCA) is widely debated. Study aim To investigate intra- and inter-operator variability in diagnostic ultrasound of the carotid arteries across a centralised vascular network using a healthy test subject. To identify potential causes of variability and highlight areas for improvement. Methods Fifteen vascular scientists across four hospital Trusts in the Bristol, Bath and Weston vascular network measured the peak systolic velocity and end diastolic velocity of the internal carotid artery and common carotid artery in a subject using a single portable ultrasound machine. A double blind assessment of spectral Doppler images was performed by two vascular clinical scientists for optimal caliper placement, spectral gain and angle correction. Results were compared for intra- and inter-operator variability. Results Initial quality assessment of the Doppler images revealed that three out of 15 scientists produced suboptimal results. Box plot analysis of the common carotid artery and internal carotid artery for each scientist revealed significant variance (ANOVA p < 0.05). However, a Levene’s test revealed no single operator who consistently produced highly variable results ( p = 0.569). Conclusion This study highlights the difficulty in obtaining consistent velocity measurements from a subject. Despite the variability in absolute peak systolic velocity and end diastolic velocity, scientists were generally consistent in obtaining an optimal spectral Doppler trace. Some issues with consistency were, however, identified which were subsequently addressed.

Traumatic aneurysm of the internal carotid artery in an infant: a surprise diagnosis

2002 ◽  
Vol 12 (4) ◽  
pp. 356-361 ◽  
Author(s):  
NEIL CHAMBERS ◽  
DARRYL HAMPSON-EVANS ◽  
KIRAN PATWARDHAN ◽  
LINDA MURDOCH
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Traumatic Aneurysm

Managing pregnancy-related stroke risk with known bilateral internal carotid artery webs

2021 ◽  
pp. 1753495X2110379
Author(s):  
Elin H Thomas ◽  
Sarah Woodward ◽  
Shakeel Ahmad
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Twin Pregnancy ◽  
Stroke Risk ◽  
Internal Carotid ◽  
Thrombus Formation ◽  
Bilateral Carotid ◽  
Tunica Intima

Carotid webs are intraluminal shelf-like projections caused by thickening of the arterial tunica intima. Due to their projections forming a nidus for thrombus formation and subsequent embolus, they are considered to be a rare cause of ischaemic strokes. We report a case of a woman with a background of recurrent ischaemic strokes due to bilateral carotid webs who presented with a twin pregnancy. We use this case to discuss how her pregnancy-related stroke risk was subsequently medically managed.

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