Search Results
Results 151 - 200 of 1903
1 2 3 4 5 6 7 8 9 10 >
Tubbs R Shane - - 2010
OBJECTIVE: To establish reliable gross landmarks for resecting the amygdala intraoperatively, especially during anteromedial temporal lobectomy and amygdalohippocampectomy for epilepsy surgery. Reliable landmarks would allow its safe and complete resection as well as its potential en bloc removal for detailed electrophysiological and histopathological analyses. METHODS: Ten adult cadavers (20 sides) ...
Teoh Hock Luen - - 2010
The artery of Percheron is an uncommon anatomic variant in which a solitary trunk originates from either posterior cerebral artery and provides arterial supply to bilateral paramedian thalami and the rostral midbrain (Fig. 1). Recognition of this anatomical variant is essential in establishing the stroke mechanism in bilateral paramedian thalamic ...
Andaluz Norberto - - 2010
BACKGROUND: Moyamoya disease is a rare, progressive, steno-occlusive disease of the distal branches of the carotid arteries associated with the development of a profuse basal collateral vascular network. In the United States, the disease occurs sporadically and literature on the topic in limited. With data lacking relative to moyamoya epidemiology ...
Bober Michael B - - 2010
Majewski Osteodysplastic Primordial Dwarfism, Type II (MOPD II) is a rare, autosomal recessive disorder. Features include severe intrauterine growth retardation (IUGR), poor postnatal growth (adult stature approximately 100 cm), severe microcephaly, skeletal dysplasia, characteristic facial features, and normal or near normal intelligence. An Institutional Review Board (IRB) approved registry was ...
Oros D - - 2010
OBJECTIVE: To evaluate whether anterior cerebral artery (ACA) Doppler ultrasonography is superior to middle cerebral artery (MCA) Doppler in the prediction of perinatal outcome and neonatal neurobehavior in term small-for-gestational-age (SGA) fetuses with normal umbilical artery (UA) Doppler. METHODS: MCA and ACA Doppler ultrasonography was performed in a cohort of ...
Yin Nicole S NS Department of Pathology, David Geffen School of Medicine at University of California, Los Angeles, CA, - - 2010
Endovascular thrombectomy is an increasingly used treatment for arterial occlusion in acute stroke. Various devices (including most extensively the Mechanical Embolus Removal in Cerebral Ischemia [MERCI] Retriever device) have been used for this. We review the neuropathologic findings in 5 patients (age range, 59 to 87 years) who died acutely ...
Nowinski Wieslaw L - - 2010
The most severe complication of deep brain stimulation (DBS) is intracranial hemorrhage. Detailed knowledge of the cerebrovasculature could reduce the rate of this disorder. Morphological scans typically acquired in stereotactic and functional neurosurgery (SFN) by using 1.5-T (or sometimes even 3-T) imaging units poorly depict the vasculature. Advanced angiographic imaging, ...
Ozatik Mehmet Ali - - 2010
Unilateral selective cerebral perfusion through right brachial artery is one of the cerebral protection methods for aortic arch repair. The purpose of this study is to determine whether cerebral perfusion through contra-lateral hemisphere is adequate or not. Seventeen consecutive patients underwent aortic arch repair using low flow antegrade selective cerebral ...
Diansan Su - - 2010
Blocking or impairment of the sphenopalatine ganglia (SPG) is an effective therapy of cluster headache and other pain syndromes. Contrarily, unilateral SPG-stimulation reduces infarction size in the rat permanent suture model. Well, what are the effects of the SPG damage on the following brain ischemia? This study was aimed to ...
Cavalcanti Daniel D - - 2010
BACKGROUND: The callosomarginal artery (CMA), the main branch of the pericallosal artery, courses in or near the cingulate sulcus and gives rises to 2 or more major cortical branches. There is confusion about the artery best fitting the definition of "callosomarginal artery." Distal anterior cerebral artery aneurysms represent 1.5% to ...
MacIntosh Bradley J - - 2010
The purpose of this study was to establish a normal range for the arterial arrival time (AAT) in whole-brain pulsed arterial spin labeling (PASL) cerebral perfusion MRI. Healthy volunteers (N = 36, range: 20 to 35 years) provided informed consent to participate in this study. AAT was assessed in multiple ...
Abuzayed Bashar - - 2010
OBJECTIVES: The objective of this study was to review the endoscopic anatomy of the anterior skull base, defining the pitfalls of endoscopic endonasal approaches to this region. Recently, these approaches are gaining popularity among neurosurgeons, and the details of the endoscopic anatomy and approaches are highlighted from the neurosurgeons' point ...
Michaelides Costas - - 2010
Electroencephalography (EEG) is routinely used during elective carotid endarterectomy (CEA) for monitoring cerebral perfusion. The period most frequently associated with cerebral hypoperfusion is the one during the clamping of the carotid artery. We present a case whereby acute hypoperfusion, as detected by ipsilateral hemispheric slowing and attenuation of the fast ...
Krähenbühl Eva S - - 2010
Prolonged deep hypothermic circulatory arrest (DHCA) adversely affects outcome and quality of life in thoracic aortic surgery. Several techniques of antegrade cerebral perfusion are routinely used: bilateral selective antegrade cerebral protection (SACP) by introducing catheters in the innominate and left carotid artery, unilateral perfusion through the right axillary antegrade cerebral ...
Sommet Julie - - 2010
Intracranial lipomas are rare congenital malformations that can often be seen in association with other brain malformations; agenesis or dysgenesis of the corpus callosum is the most frequently associated brain anomaly. They are usually pericallosal asymptomatic midline lesions. Intracranial lipomas associated with a non-contiguous cerebral aneurysm are extremely rare. We ...
Lee In Ho - - 2010
A 51-year-old female presented with bilateral accessory middle cerebral arteries (MCA) with associated ruptured aneurysm manifesting as a subarachnoid hemorrhage. Angiography demonstrated the bilateral accessory MCA and associated ruptured aneurysm at the junction of the left anterior cerebral artery and left accessory MCA. This was successfully treated by coil embolization. ...
Aikawa Hiroshi - - 2010
Changes in the cerebral blood flow (CBF) are important for planning postoperative care in patients treated by carotid artery stenting (CAS). The relationship between intraprocedural changes in the angiographic cerebral circulation time (CCT) and perioperative CBF changes were retrospectively studied in 49 CAS procedures performed in 46 patients with carotid ...
Hayashi Kentaro - - 2010
A 52-year-old woman with Sjögren's syndrome presented with multiple cerebral aneurysms, which resulted in recurrent subarachnoid hemorrhage (SAH) manifesting as severe headache. Computed tomography (CT) showed SAH. Cerebral angiography revealed aneurysms of the anterior communicating artery and the left middle cerebral artery. The necks of the aneurysms were successfully clipped. ...
Ito Yoshiro - - 2010
A 69-year-old female presented with multiple cerebellar infarctions and mild cognitive dysfunction. Cerebral angiography revealed severe right vertebral artery (VA) stenosis just proximal to the origin of the posterior inferior cerebellar artery. Neuropsychology tests showed the mini-mental state examination (MMSE) score was 21, and the Wechsler Adult Intelligence Scale-Revised (WAIS-R) ...
Kokuzawa Jouji - - 2010
A 63-year-old patient presented with cerebral hyperperfusion manifesting as transient aphasia and general tonic convulsions 3 and 4 days after superficial temporal artery to middle cerebral artery (STA-MCA) anastomosis. Diffusion-weighted magnetic resonance (MR) imaging revealed a focal low-intensity area at the site of anastomosis in the left temporal lobe, with ...
Ishikawa Tatsuya - - 2010
Models of the brain and skull were developed using a selective laser sintering method for training in the procedures of deep microvascular anastomosis. Model A has an artificial skull with two craniotomies, providing fronto-temporal-subtemporal and suboccipital windows. The brain in Model A is soft and elastic, and consists of the ...
Krishnamurthy A - - 2010
Anterior cerebral artery, one of the terminal branches of the internal carotid artery is an important vessel taking part in the formation of circle of Willis. It supplies a large part of the medial surface of the cerebral hemisphere containing the areas of motor and somatosensory cortices of the lower ...
Shiotani Seiji - - 2010
PURPOSE: The aim of this study was to investigate cerebral gas embolism (GE) on nontraumatic postmortem CT (PMCT), regarding its frequency, location (arterial or venous), and causes. MATERIALS AND METHODS: Our subjects were 404 nontraumatically deceased patients who had been in a state of cardiopulmonary arrest on arrival at our ...
Kimura Toshikazu - - 2010
A 60-year-old woman presented with a rare unruptured aneurysm of duplication of the middle cerebral artery (DMCA) identified at examination for headache. Preoperative cerebral angiography revealed the DMCA and a small aneurysm at its origin. Surgical clipping was performed successfully via the trans-sylvian approach. DMCA aneurysms have a tendency to ...
Ventura Walter - - 2010
We report a fetus scanned by color Doppler ultrasound at 37 weeks for suspicion of growth restriction with an extremely rare variation of duplicated middle cerebral artery. Three-dimensional color power Doppler and tomographic ultrasound imaging enhanced our incidental finding.
Jongen Lisa M - - 2010
BACKGROUND: Patients with impaired perfusion in the hemisphere ipsilateral to a stenotic internal carotid artery may have a higher risk of cerebral ischemic complications than those with normal perfusion. We therefore studied whether the occurrence of new ischemic lesions after carotid artery stenting is related to cerebral perfusion. METHODS: In ...
Ji Cheol - - 2010
A 28-year-old woman was referred to our hospital with a sudden, very severe headache. Brain computed tomographic angiography showed a saccular cerebral aneurysm at the bifurcation of the left middle cerebral artery and infraoptic courses of both anterior cerebral arteries. The anterior cerebral arteries were seen to arise from the ...
Otani Naoki - - 2010
Intracranial vascular anomalies involving the middle cerebral artery (MCA) are relatively rare, as such knowledge will be helpful for planning the optimal surgical procedures. We herein present the first case of a ruptured internal carotid artery aneurysm arising at the origin of the hypoplastic duplicated MCA associated with accessory MCA ...
Eldawoody Hany - - 2010
Fasudil (a Rho-kinase inhibitor) has been shown to attenuate abdominal aortic aneurysm development, but any preventive effect against development of cerebral aneurysms is unclear. The effect of fasudil on the development of cerebral aneurysms was investigated in 55 female Sprague-Dawley rats divided into 4 groups: Group 1 (n=10) was the ...
Kaya Ahmet Hilmi - - 2010
The perforating branches of the P1 segment of the posterior cerebral artery are vulnerable to injury. Because of their close proximity to the basilar artery, the vulnerability occurs especially during surgical interventions for vascular pathologies such as basilar apex aneurysms. Therefore, extensive knowledge of the microsurgical anatomy of this area ...
Ando Koichi - - 2009
Development of cerebral perivascular nerves immunoreactive for vasoactive intestinal polypeptide (VIP) was investigated in the Japanese quails, using immunohistochemistry and quantitative analysis. VIP-immunoreactive (VIP-IR) nerves supplying the anterior circulation appeared on the cerebral carotid artery (CCA) at embryonic day 10 and on the cerebroethmoidal artery (CEA) after hatching. Nerves from ...
Nowinski Wieslaw L - - 2009
The knowledge of cerebrovascular variants is essential in education, training, diagnosis and treatment. The current way of presentation of vasculature and, particularly, vascular variants is insufficient. Our purpose is to construct a three-dimensional (3D) interactive atlas of cerebral arterial variants along with exploration tools allowing the investigator just with a ...
Pasaoglu L - - 2009
Persistent primitive hypoglossal artery (PPHA) which is a persistent carotid-basilar anastomosis is a rare vascular anomaly. It is usually found incidentally. Fenestrations of cerebral arteries are uncommon. Herein we present a case of PPHA with fenestration of posterior cerebral artery. A 28 year old man was admitted to our hospital ...
Morrison N - - 2009
OBJECTIVES: To investigate and review collected and reported transcutaneous ultrasound, transthoracic echocardiography (TTE) and transcranial Doppler (TCD) data obtained during ultrasound-guided foam sclerotherapy (USGFS) of incompetent saphenous, tributary and perforating veins of the lower extremities. METHODS: TTE and/or middle cerebral artery TCD were performed during USGFS. Ultrasound (US) findings and ...
Berg C - - 2009
OBJECTIVES: To assess changes in the Doppler flow profiles of the middle cerebral artery in fetuses with cardiac defects theoretically associated with impaired cerebral oxygen delivery in utero. METHODS: Z-scores were calculated for pulsatility and resistance indices (PI and RI, respectively) of the middle cerebral artery (MCA) and the cerebroplacental ...
Berrios-Otero Cesar A CA Kimmel Center for Biology and Medicine at the Skirball Institute of Biomolecular Medicine, New York University School of Medicine, New York, New York 10016, - - 2009
Vascular system development involves a complex, three-dimensional branching process that is critical for normal embryogenesis. In the brain, the arterial systems appear to develop in a stereotyped fashion, but no detailed quantitative analyses of the mouse embryonic cerebral arteries have been described. In this study, a gadolinium-based contrast perfusion method ...
Eom Ki Seong - - 2010
We present the first case of a bilateral diffuse intracerebral hemorrhagic infarction following cranioplasty using an autologous bone graft. The case is that of a 63-year-old man who had undergone previous decompressive craniectomy due to right middle cerebral artery and posterior cerebral artery territory infarction. In order to avoid this ...
Bek Semai - - 2010
Vasomotor response can be tested by means of transcranial Doppler sonography. It is assumed that flow changes during hyperventilation or breath-holding are due to altered resistance caused by changes in the diameter of vessels distal to the M1 segment of the middle cerebral artery. Evaluating velocities of the M2 and ...
Faraco Giuseppe - - 2010
Poly(ADP-ribose) polymerase-1 (PARP-1) is involved in ischemic preconditioning of the heart and cultured neurons, but its role in brain ischemic preconditioning is unknown. Summary of Report- We report that 5-minute bilateral common carotid artery occlusion (BCCAO) in the mouse prompted reduction of infarct volumes triggered 24 hours later by 20-minute ...
Limatola V - - 2010
Xenon preconditioning induces tolerance to the consequences of an injurious stimulus such as cerebral ischaemia. There have been surprisingly few studies investigating gender difference in the efficacy of pharmacological preconditioning, despite the known ability of oestradiol to exert neuroprotectant activity. We explored this paradigm using a mouse model of transient ...
Benavides-Serralde J A - - 2010
AIM: To construct normal reference values for Doppler parameters in 2 anatomical segments of the fetal anterior cerebral artery (ACA) throughout pregnancy. METHODS: The ACA was evaluated in 373 normally growing fetuses from 20 to 40 weeks of gestation. The first segment of the ACA (ACA-S1) was recorded just after ...
Ilves Pilvi - - 2009
OBJECTIVE: The purpose of this study was to evaluate changes in the Doppler blood flow velocity (BFV) in the cerebral and visceral arteries in asphyxiated term neonates. METHODS: The BFV was measured in 47 asphyxiated and 37 healthy term neonates in the anterior cerebral artery, middle cerebral artery, basilar artery, ...
Ko Jun Kyeung - - 2009
A 31-year-old man presented with right hemiparesis, and magnetic resonance imaging revealed a small infarct at left basal ganglia. Digital subtraction angiography showed left cervical internal carotid artery (ICA) occlusion and severe stenosis of the ipsilateral external carotid artery (ECA) with collateral cerebral circulation fed by ECAs. Based on the ...
Fujikawa Akira - - 2010
INTRODUCTION: Our aim was to examine the feasibility of a computed tomographic angiography (CTA) protocol using a reduced dose of high-concentration contrast material on a 16 multidetector-row system to visualize both cervical and cerebral arteries in one session. METHODS: In 31 consecutive patients, we performed CTA covering the cervical and ...
Kumar Rajesh - - 2009
Congenital central hypoventilation syndrome (CCHS) patients show hypoventilation during sleep and severe autonomic impairments, including aberrant cardiovascular regulation. Abnormal sympathetic patterns, together with increased and variable CO(2) levels, lead to the potential for sustained cerebral vasculature changes. We performed high-resolution T1-weighted imaging in 13 CCHS and 31 control subjects using ...
Day Ronald W - - 2010
A 7-year-old girl with Down syndrome and moderately severe pulmonary hypertension experienced a stroke while being treated with a calcium channel blocker. Angiography identified bilateral stenosis of the supraclinoid internal carotid arteries, stenosis or occlusion of the proximal anterior and middle cerebral arteries, and occlusion of the left posterior cerebral ...
Yadav Padam - - 2009
A newborn presented at 14 hrs of age with right sided clonic seizures and shrill cry. Magnetic Resonance Imaging of the brain showed left cerebral hemiatrophy with cystic changes in left fronto-parietal lobe and parasylvian region. The Magnetic Resonance Angiography revealed hypoplasia of left supraclinoid Internal Carotid Artery and hypoplasia ...
Wait Scott D - - 2009
We describe a novel technique used to repair an unanticipated tear of the internal carotid artery (ICA) requiring anterior cerebral artery (ACA) amputation to allow primary repair of the arteriotomy. A 59-year-old woman underwent an orbitozygomatic craniotomy to treat a large, suprasellar, thyroid-stimulating hormone-secreting adenoma. During resection, an incidental ICA ...
Jackson Andrew J - - 2009
We report the case of a 55-year-old man who presented with a left hemisphere stroke. The initial computed tomography scan demonstrated a cerebral infarct in association with a left middle cerebral artery occlusion. Carotid duplex ultrasound imaging revealed a surgical grade stenosis of the proximal left internal carotid artery; however, ...
Cho A-Hyun - - 2010
Postpartum cerebral angiopathy mostly occurs in the large or medium-sized cerebral arteries. In this case, we aimed to report a case of postpartum cerebral angiopathy presented as an asymmetrical penetrating arterial territory infarct with severe surrounding vasogenic edema. A 26-year-old woman admitted because of sudden headache after an attack of ...
1 2 3 4 5 6 7 8 9 10 >