This is the second part of a two-part study that explores the feasibility of 3-D, volumetric brain imaging in small animals by optical tomographic techniques. In part 1, we demonstrated the ability to visualize global hemodynamic changes in the rat head in response to elevated levels of CO(2) using a continuous-wave instrument and model-based iterative image reconstruction (MOBIIR) algorithm. N...

this is retrospective double-blind research, which was carried out in imam khomeini hospital in order to study the accuracy of color doppler ultrasonography for detecting the site and grade of stenosis in cervical carotid artery. 40 patients with mean age of 62 years studied with color doppler before dsa angiography. the most common sites of stenosis were left internal carotid (39.5%) and right...

Stroke is one of the common causes of death and disability in the world. The intraluminal middle cerebral artery occlusion/reperfusion (MCAO/R) model is a "gold standard" in surgical ischemic stroke models. Here, we optimized the procedure of this model by ligating on external carotid artery (ECA) stump and two ligatures prepared on internal carotid artery, which could improve the success and s...

Herein, we present a case of aortic dissection with right carotid artery occlusion that was treated successfully thrombus evacuation from the false lumen occluded during hemiarch replacement. This procedure is performed two maneuvers: aggressive retrieval innominate circulatory arrest and common through right-neck incision heart beating. In this alternative method, thrombi can be evacuated more...

Twenty-three instances of internal carotid artery occlusion occurring with minimal neurological deficit in 22 patients are described. Although each of these patients was referred to the neurosurgical service for evaluation for an extracranial-intracranial microvascular bypass procedure, complete arteriographic evaluations of their cerebrovasculature suggested that alternative methods should be ...

Carotid-cavernous fistulas may be classified into: (1) internal carotid, (2) external carotid, or (3) a combination of both. They may result from traumatic or spontaneous rupture of the carotid artery into the cavernous sinus. Intravascular embolization has become the treatment of choice for the management of carotid cavernous fistulas. The authors report the delayed effects after the treatment...

IRIUCHIJIMA, JURO, AND HIROYUKI KOIKE. Carotid flow, intrasinusal pressure, and collateral flow during carotid occlusion. Am. J. Physiol. 218(3) : 876-879. 1970.-Bilateral common carotid flow and systemic as well as intrasinusal pressure were observed in anesthetized dogs. Unilateral common carotid occlusion induced about a 30y0 increase in contralateral common carotid flow, mainly due to colla...

Opacity Pulse Propagation in Internal and External Carotid Vascular Beds of Experimental Animals • Opacity pulses and opacity pulse propagation times were recorded from the external carotid arterial bed (ear) and from the ipsilateral internal carotid arterial bed of the pial-cortical surface within the closed skull of conscious monkeys and anesthetized cats during the resting state and during c...

BACKGROUND AND PURPOSE We report a management strategy for cerebral revascularization in a patient with an occluded common carotid artery by first performing a subclavian to external carotid artery bypass, followed by superficial temporal artery middle cerebral artery (STA-MCA) bypass. METHODS The patient presented with symptomatic left hemispheric hemodynamic insufficiency, associated with o...

PURPOSE The ocular ischemic syndrome (OIS) is sometimes a complication of common carotid artery (CCA) occlusion causing complete interruption of blood flow through both the internal and external carotid arteries we investigated a single case of an isolated OIS that remained undiagnosed for two years, because the underlying CCA pathology caused no cerebral involvement. CASE REPORT A 57-year-ol...