BACKGROUND Hyperdense middle cerebral artery sign is an appearance of the middle cerebral artery on non-contrast-enhanced computed tomography. Embolic occlusion of the pulmonary arterial system is referred to as pulmonary embolism. When pulmonary embolism coexists with a patent foramen ovale, increased pressure in the right atrium may result in widening of the foramen and consequently, cause se...

BACKGROUND AND PURPOSE To gain a better understanding of T cell behavior after stroke, we have developed real-time in vivo brain imaging of T cells by multiphoton microscopy after middle cerebral artery occlusion. METHODS Adult male hCD2-GFP transgenic mice that exhibit green fluorescent protein-labeled T cells underwent permanent left distal middle cerebral artery occlusion by electrocoagula...

Carotid Arterial Supply of the Feline Brain • A study of the supply to the feline brain by the carotid-middle cerebral arteries was conducted using in vivo transcardiac injection with a mixture of micropaque and carbon black. Modifications in the filling pattern of the arterial vessels were visualized following short-term occlusion of a middle cerebral artery. A modified surgical method to indu...

Carotid Arterial Supply of the Feline Brain • A study of the supply to the feline brain by the carotid-middle cerebral arteries was conducted using in vivo transcardiac injection with a mixture of micropaque and carbon black. Modifications in the filling pattern of the arterial vessels were visualized following short-term occlusion of a middle cerebral artery. A modified surgical method to indu...

BACKGROUND AND PURPOSE Tandem internal carotid and middle cerebral artery occlusion independently predicts poor outcome after intravenous thrombolysis. Recanalization of internal carotid artery dissection by stent-assisted angioplasty has recently been proposed when anticoagulation fails to prevent a new ischemic event. We recently reported a case of tandem internal carotid and middle cerebral ...

We present a case in which angioplasty alone and stent-assisted angioplasty were performed in the same patient to treat medically refractory intracranial stenoses. This elderly patient with presumed intracranial atherosclerotic disease underwent angioplasty alone for his anterior cerebral artery stenosis. Stent-assisted angioplasty was used for treatment of his ipsilateral middle cerebral arter...

Although the augmentation of central hemodynamics during human sexual intercourse is well established, dynamic changes in human regional cerebral blood flow have not been reported. Noninvasive transcranial Doppler ultrasonography has been well validated and allows direct, continuous measurement of phasic blood velocity in the human middle cerebral artery (a linear index of regional cerebral blo...

A retrograde approach to aneurysms located at the middle cerebral artery bifurcation which uses the superficial Sylvian veins as landmarks is described. Fifty patients with 51 aneurysms were operated on using this technique. This method made it easier for surgeons to decide where to enter the Sylvian fissure for dissection of the middle cerebral artery branches and to secure the parent artery.

OBJECTIVE To compare umbilical and middle cerebral artery Doppler ultrasound values in high and low risk pregnancies withfoetal outcome. DESIGN Descriptive prospective study. SETTING Aga Khan University Hospital, Nairobi between the months of February and November 2007. SUBJECTS One hundread and twenty one consecutive female subjects, between 24 and 443 years of age, at or over 28 weeks g...

BACKGROUND Angioplasty of the intracranial vasculature has been well described for the middle cerebral artery and carotid terminus, primarily in the setting of vasospasm following subarachnoid hemorrhage. Endovascular therapy for anterior cerebral artery stenosis has not heretofore been described. CASE REPORT We report the case of A1 segment angioplasty in a 77 year old man with presumed intr...