PURPOSE To study the incidence of cerebellar arteries originating directly from the internal carotid artery, and to discuss the probable embryological origin and clinical implications of this anatomical anomaly. METHODS We reviewed 5500 angiographic studies done at our institution in the last 4 years, searching for these anomalous vessels as well as for other anatomical variants. RESULTS El...

The external carotid arterial system is a complex vascular system constituting the nourishment to territorial areas of the head, face and neck tissues. Though the variation in the carotid arteries and their branches are common in the carotid triangle, it is important for the clinicians, surgeons and the radiologists to be aware of all possible variations of these arteries. This paper is an ende...

Abstract Cerebrovascular diseases like atherosclerosis pose a great threat to health and wellbeing of people worldwide. To enable early diagnosis treatment gradually progressing occlusion the carotid arteries, we propose BODYTUNE system. Consisting custom-built auscultation device mobile application, it aims at enabling monitoring blood flow within arteries on regular basis home. In this work, ...

A 5-year-old boy was evaluated for a left retrotympanic mass found at otoscopy. Subsequent petrous bone CT and MR angiographic examinations demonstrated bilateral aberrant internal carotid, bilateral stapedial artery persistence, and bilateral duplicated internal carotid arteries. Imaging findings and their clinical relevance are discussed. A second case of unilateral aberrant internal carotid ...

Ephedrine, metaraminol, epinephrine and maneuvers like carotid sinus stimulation used during intraoperative period have been postulated to cause temporary spasm of the coronary vessels leading decrease supply myocardium precipitating myocardial infraction in non-obstructive arteries (MINOCA). As an anaesthesiologists, we should be aware that even a dose as small 25 mcg infiltrated along with lo...

Fibromuscular Dysplasia of the Extracranial Internal Carotid A rteries Associated With an Ulcerative Plaque • Fibromuscular dysplasia (FMD) of the extracranial internal carotid arteries is a relatively rare angiographical finding which has been reported as an incidental finding during angiography, as well as in association with a variety of different clinical conditions. A case is reported of t...

Evaluation of patients before transsphenoidal hypophysectomy for large intrasellar mass lesions has required bilateral internal carotid artery angiography. Using intravenous injection of contrast medium, a method has been developed to visualize the parasellar carotid arteries with rapid sequence sequential computed tomographic scanning. In 18 patients, the cavernous segments of the internal car...

Background and objective: The circle of Willis (COW) supports adequate blood supply to the brain. The cardiovascular system, in the current study, is modeled using an equivalent electronic system focusing on the COW.Method: In our previous study we used 42 compartments to model whole car- diovascular system. In the current study, nevertheless, we extended our model by using 63 compartments to m...

Objective: To evaluate intimal thickening secondary to stent placement or to insertion of the delivery system without stent placement in pig carotid arteries. Methods: Stents were placed in the right common carotid arteries of 7 pigs, and 7 other control pigs underwent only insertion of the delivery system without stent placement. Uninjured contralateral common carotid arteries of the two group...

BACKGROUND AND PURPOSE Distal to a hemodynamically significant stenosis, the Doppler effect becomes dampened. Thus, measuring the flow profile in the ophthalmic artery and the central retinal artery with color Doppler imaging may provide hemodynamic information about the carotid circulation. METHODS To validate the flow profile measurement with color Doppler imaging in the ophthalmic and cent...