نتایج جستجو برای: cerebrospinal fluid shunting

تعداد نتایج: 224624  

Journal: :Journal of neurology, neurosurgery, and psychiatry 2004
H S Chang H Nakagawa

OBJECTIVE To apply a theoretical model to analyse the derangement of cerebrospinal fluid (CSF) dynamics in syringomyelia associated with adhesive arachnoiditis. METHODS An electrical circuit model of CSF dynamics in the spine was used. With this model, the derangement of CSF dynamics in adhesive arachnoiditis was simulated. The effects of various surgical procedures were then analysed, such a...

2000
BENITO PEREIRA DAMASCENO

Normal pressure hydrocephalus (NPH) represents 1 to 12% of dementias. It is characterized by gait disturbance, progressive mental deterioration and urinary incontinence, associated with enlargement of the ventricular system and normal cerebrospinal fluid (CSF) pressure. In typical cases, gait disturbance is the first and most salient sign, followed by forgetfulness or mild dementia, psychomotor...

Journal: :Egyptian Journal of Neurosurgery 2023

Abstract Background Lumboperitoneal (LP) shunting is an effective treatment option aiming at cerebrospinal fluid diversion in cases of idiopathic intracranial hypertension. Confirming the distal end position, on other hand, could be technically difficult, especially obese people. With minimal invasive procedures, laparoscopic-assisted placement peritoneal side LP shunt became a valid option. In...

2018
Furkan Diren Serra Sencer Tayfun Hakan

Objective Arteriovenous malformation (AVM) is the most common form of intracranial vascular malformations in adults. Intracranial pediatric AVMs are rare. AVM located in the vicinity of the brain stem in children are even more rare. Case report This study reports a rare case of acute obstructive hydrocephalus following aqueductal stenosis caused by an unruptured grade IV perimesencephalic art...

Journal: :Biomedizinische Technik. Biomedical engineering 2010
Katrina Wendel Juho Väisänen Asta Kybartaite Jari Hyttinen Jaakko Malmivuo

Volume conductor head models contain thin tissue layers, some of which have highly contrasting conductivity values relative to neighboring tissues. We expound the cerebrospinal fluid (CSF) and the six cortical layers of the gray matter. The dual nature of the CSF competes with the well-known shunting behavior of the skull. The incorporation of the six ultra thin cortical layers demonstrate the ...

Journal: :iranian journal of basic medical sciences 0
hui zhao department of intensive care unit, sir run run shaw hospital, zhejiang university school of medicine, hangzhou 310016, china yueliang chen department of intensive care unit, sir run run shaw hospital, zhejiang university school of medicine, hangzhou 310016, china

objective(s): the aim of this study wasto investigate the effects of mild hypothermia therapy on oxidative stress injury of rabbit brain tissue after cardiopulmonary resuscitation (cpr). materials and methods: rabbit models of cardiac arrest were established. after the restoration of spontaneous circulation, 50 rabbits were randomly divided into normothermia and hypothermia groups. the followin...

Journal: :iranian journal of toxicology 0
محمدرضا فارسی نژاد mohammadreza farsinejad department of forensic medicine and toxicology, tehran university of medical sciences, tehran, iran ناهید کاظم زاده nahid kazemzadeh department of forensic medicine and toxicology, tehran university of medical sciences, tehran, iran محمدعلی امام هادی mohammadali emamhadi department of forensic medicine and clinical toxicology, shahid beheshti university of medical sciences, tehran, iran نسیم زمانی nasim zamani department of forensic medicine and toxicology, tehran university of medical sciences, tehran, iran حسین صناعی زاده hossein sanaei-zadeh department of forensic medicine and toxicology, tehran university of medical sciences, tehran, iran

introduction: in some intoxicated patients, cerebrospinal fluid (csf) is examined due to the prolonged loss of consciousness, focal neurologic findings, and fever of unknown origin. we aimed to evaluate the probable relationship between the different toxicity causes and the csf indices in poisoned patients and determine if they could predict the patients’ outcome. methods: all patients who had ...

Journal: :journal of biomedical physics and engineering 0
r zeinali medical physics student of tabriz university of medical science a keshtkar a zamani n gharehaghaji

background: volume estimation of brain is important for many neurological applications. it is necessary in measuring brain growth and changes in brain in normal/abnormal patients. thus, accurate brain volume measurement is very important. magnetic resonance imaging (mri) is the method of choice for volume quantification due to excellent levels of image resolution and between-tissue contrast. st...

2016
Jiang Rong Ma Chunhua Lv Yuan Mu Ning Li Jinduo Wang Bin Sun Liwei

OBJECTIVE To discuss the application of ARMS method to detect EGFR gene mutation in cerebrospinal fluid of lung adenocarcinoma patients with meningeal metastasis. METHODS 5 cases of lung adenocarcinoma were identified with meningeal metastasis that were cleared EGFR gene mutation by gene sequencing method. From each patient 5ml cerebrospinal fluid was obtained by lumbar puncture. ARMS method ...

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