Non-invasive visualization of arterial stagnation in a dissected internal carotid artery

2020 ◽  
Vol 412 ◽  
pp. 116760
Author(s):  
Tatsuo Mano ◽  
Takahiro Nakayama ◽  
Hironobu Endo ◽  
Keiko Bono ◽  
Ichiro Imafuku
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Non Invasive

scholarly journals Location of the internal carotid artery and ophthalmic artery segments for non-invasive intracranial pressure measurement by multi-depth TCD

2017 ◽  
Vol 12 (1) ◽  
pp. 1384290 ◽  
Author(s):  
Yasin Hamarat ◽  
Mantas Deimantavicius ◽  
Evaldas Kalvaitis ◽  
Lina Siaudvytyte ◽  
Ingrida Januleviciene ◽  
...  
Keyword(s):  
Intracranial Pressure ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Pressure Measurement ◽  
Ophthalmic Artery ◽  
Internal Carotid ◽  
Non Invasive

Giant aneurysm of the petrous internal carotid artery: diagnosis and treatment

1998 ◽  
Vol 112 (2) ◽  
pp. 196-198 ◽  
Author(s):  
S. C. Coley ◽  
A. Clifton ◽  
J. Britton
Keyword(s):  
Hearing Loss ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Imaging Techniques ◽  
Giant Aneurysm ◽  
Balloon Occlusion ◽  
Fusiform Aneurysm ◽  
Non Invasive ◽  
Endovascular Balloon Occlusion

AbstractWe report the case of a giant fusiform aneurysm of the petrous internal carotid artery in a 15-year-old patient who had presented with headache, hearing loss and Horner's syndrome. Definitive radiological diagnosis was made by non-invasive imaging techniques, including magnetic resonance angiography (MRA). The aneurysm was obliterated by endovascular balloon occlusion following successful tolerance of test occlusion of the internal carotid artery.

A novel non-invasive method for estimating the local wave speed at a single site in the internal carotid artery

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Asma Ayadi ◽  
Wassila Sahtout ◽  
Olivier Baledent
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Wave Speed ◽  
Internal Carotid ◽  
Blood Velocity ◽  
Non Invasive ◽  
Velocity Waveform ◽  
Local Wave ◽  
Invasive Method

AbstractObjectivesLocal wave speed is a biomarker which provides an objective analysis of the cardiovascular function. The aim of this study was to determine the local wave speed in the internal carotid artery by a new non-invasive method that measures blood velocity waveform at only one site.MethodsFor this purpose, the cepstral analysis was employed to determine the arrival time of the reflection wave and the wave speed in the carotid artery. To validate our model, we applied it experimentally in vivo on young and old healthy subjects. The blood velocity waveform was measured by using phase-contrast magnetic resonance for 22 subjects.ResultsOur experimental results correlated with reference values reported in previous studies conducted on the internal arterial carotid usually adopting the invasive method. They also correlated with those obtained by using the foot-to-foot method (R2=0.72). The wave speed obtained by the method developed in this study and that of the foot-to-foot method increased with age (p<0.001).ConclusionsThe method developed in this study can be applied in the other arteries and it can also be used with other techniques such as ultrasound imaging.

scholarly journals Comparison of digital subtraction angiography and contrast-enhanced ultrasound in assessment of carotid stenosis

2020 ◽  
Vol 20 (1) ◽  
pp. 509-514
Author(s):  
Ronggui Liu ◽  
Zhimei Yan ◽  
Guijun Zhang ◽  
Zhaoyan Ding ◽  
Yunping Li ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Digital Subtraction Angiography ◽  
Carotid Artery Stenosis ◽  
Internal Carotid ◽  
Digital Subtraction ◽  
Contrast Enhanced Ultrasound ◽  
Non Invasive ◽  
Contrast Enhanced ◽  
Ica Stenosis

Introduction: The performances of contrast-enhanced ultrasound (CEUS) and digital subtraction angiography (DSA) were used to establish an efficient as well as non-invasive clinical technique for the diagnosis of extra-cranial internal carotid artery (ICA) stenosis. Materials and methods: Thirty-six successive patients (11 women and 25 men, mean age: 65.0 ± 9.2, range: 43–78 years) with internal carotid artery (ICA) stenosis were tested by CEUS and DSA. These tests were carried out by means of Hitachi Preirus ultrasound machine for CEUS and Allura Xper FD20 system (Philips Medical Systems, Nederland B.V.) for DSA. 1.2 ml Son- oVue (Bracco, Switzerland) was used a s contrast agent. Results: The results clearly indicated that there were no noteworthy variations among the distributions recorded by CEUS as well as DSA for the four tested groups. The percentage of diameter stenosis calculated by CEUS was clearly in accordance with the DSA images. CEUS showed accurate results with good specificity and sensitivity at 50%, 70%, and 100%. Also, CEUS per- formance was relatively better than DSA in the diagnosis of ICA and suitability of CEA. Conclusion: CEUS proved to be a precise non-invasive testing method for the diagnosis of carotid artery stenosis which is more feasible and well-tolerated in patients with various stages of carotid stenosis. Keywords: Carotid artery stenosis; CEUS; contrast-enhanced ultrasound; digital subtraction angiography. 

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