نتایج جستجو برای: brain volume

تعداد نتایج: 766246  

Journal: :مجله علوم اعصاب شفای خاتم 0
elham mohammadzadeh a. shefa neuroscience research, khatam alanbia hospital, tehran, iran b. department of biology and anatomical sciences, faculty of medicine, shahid beheshti university of medical sciences,tehran, iran

the brain edema is one of remarkable injuries after traumatic brain injuries (tbi). the common treatments for limiting edema are included mannitol, barbiturates, corticosteroids, hyperventilation and central nervous system derange. the most of these treatments for edema is problematic. for example, mannitol can be effective for the short period of time (24 hours) after brain injuries but is not...

Journal: :Neuroreport 2002
Eileen Lüders Helmuth Steinmetz Lutz Jäncke

Magnetic resonance imaging was used to evaluate the influence of sex and brain size on compartmental brain volumes (grey matter, white matter, CSF) in a large and well-matched sample of neurologically normal women (n = 50) and men (n = 50). As expected, we found a significant sex difference for the absolute volumes of total brain, grey matter, white matter and CSF, with greater volumes for men....

Journal: :International Journal of Radiation Oncology*Biology*Physics 2018

A Shamsizadeh E Hakimizadeh H Rezazadeh M Allahtavakoli M Mobini S Amir-Esmaili V Ehsani

Background & Aims: Ischemic postconditioning, conducted by a series of brief occlusion and release of the bilateral common carotid arteries, has neuroprotective properties in permanent or transient models of middle cerebral artery (MCA) occlusion but its delayed neuroprotective effects in the embolic model of stroke, especially in female rat, have not yet been reported and were investigated ...

Allahtavakoli, Mohammad, Bazmandegan, Gholamreza, Hakimizadeh, Elham, Hasan shahi, Jalal, Kaeidi, Ayat, Moghadam ahmadi, Amir, Mohammadi, Mohadeseh, Rahmani, Mohammadreza, Shamsi zadeh, Ali,

Introduction: Stroke is a neurological disease and one of the leading causes of death all over the world. It is also an important cause of disability in people over age over 65. It may be possible to reduce the incidence of cerebral ischemia using antioxidants, followed by inhibition of oxidative and inflammatory mechanisms. Troxerutin is a natural bioflavonoid with antioxidant and anti-inflamm...

2017
Emilio Werden Toby Cumming Qi Li Laura Bird Michele Veldsman Heath R. Pardoe Graeme Jackson Geoffrey A. Donnan Amy Brodtmann

OBJECTIVE To examine associations between ischemic stroke, vascular risk factors, and MRI markers of brain aging. METHODS Eighty-one patients (mean age 67.5 ± 13.1 years, 31 left-sided, 61 men) with confirmed first-ever (n = 66) or recurrent (n = 15) ischemic stroke underwent 3T MRI scanning within 6 weeks of symptom onset (mean 26 ± 9 days). Age-matched controls (n = 40) completed identical ...

Journal: :Child neuropsychology : a journal on normal and abnormal development in childhood and adolescence 2017
Rianne Kok Peter Prinzie Marian J Bakermans-Kranenburg Frank C Verhulst Tonya White Henning Tiemeier Marinus H van IJzendoorn

Evidence has been accumulating for the impact of normal variation in caregiving quality on brain morphology in children, but the question remains whether differences in brain volume related to early caregiving translate to behavioral implications. In this longitudinal population-based study (N = 162), moderated mediation was tested for the relation between parental sensitivity and child prosoci...

2014
Kunio Nakamura Robert A. Brown David Araujo Sridar Narayanan Douglas L. Arnold

Brain volume change measured from magnetic resonance imaging (MRI) provides a widely used and useful in vivo measure of irreversible tissue loss. These measurements, however, can be influenced by reversible factors such as shifts in brain water content. Given the strong effect of water on T2 relaxation, we investigated whether an estimate of T2 relaxation time would correlate with brain volume ...

G Sharifi H Hashemi M A Oghabian, S Masjoodi,

Background: Presurigical planning for glioma tumor resection and radiotherapy treatment require proper delineation of tumoral and peritumoral areas of brain. Diffusion tensor imaging (DTI) is the most common mathematical model applied for diffusion weighted MRI data. Neurite orientation dispersion and density imaging (NODDI) is another mathematical model for DWI data modeling.Objective: We stud...

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