نتایج جستجو برای: magnetic resonance imaging mri neuroimaging

تعداد نتایج: 806689  

Journal: :iranian journal of radiology 0
chermaine deepa antony department of biomedical imaging, faculty of medicine, university malaya, kuala lumpur, malaysia; department of biomedical imaging, faculty of medicine, university malaya, 50603, kuala lumpur, malaysia. tel: +60-30379494422, fax: +60-379492030 kartini rahmat department of biomedical imaging, faculty of medicine, university malaya, kuala lumpur, malaysia anushya vijayananthan department of biomedical imaging, faculty of medicine, university malaya, kuala lumpur, malaysia jayalakshmi pailoor department of pathology, university malaya, kuala lumpur, malaysia

rhabdomyosarcoma is a common primary childhood malignancy that rarely metastasizes to the breast. we report a patient with a primary sinonasal rhabdomyosarcoma metastasizing to the breast, with no distant spread. we describe the imaging appearance of rhabdomyosarcoma on magnetic resonance imaging (mri), particularly on diffusion-weighted imaging (dwi) and apparent diffusion coefficient (adc) se...

Journal: Nanomedicine Journal 2020

Bimodal imaging combines two imaging modalities in order to benefit from their advantages and compensate the limitations of each modality. This technique could accurately detect diseases for diagnostic purposes. Nanoparticles simultaneously offer diagnostic data via various imaging modalities owing to their unique properties. Moreover, bimodal nanoprobes could be incorporated into theranostic s...

Ali Zamani, Mehdi Hoseini Mina Nouri,

Introduction: Staff and patient Movement in static magnetic field MRI scanner induces current density in the human tissues, so cause biologic effects in people. The aim of this study was the Modelling of current density induced by moving individual with different velocities in static magnetic field of magnetic resonance imaging. Materials and Methods: current ...

Journal: :iranian journal of child neurology 0
azita tavassoli assistant professor of pediatric neurology, tehran university of medical sciences,tehran, iran shahriar noormohamadi general pediatrician, tehran, iran

objective the first attack of unprovoked seizure is more frequent than recurrent one and neuroimaging is one of the main parts of the evaluation of these attacks in order to demonstrate the cause and predict the prognosis. the aim of this study was to determine the incidence of abnormal neuroimaging and related factors in children with the first unprovoked seizure. materials & methods a 7-year ...

Journal: :iranian journal of radiology 0
ali firat sarp radiology department, ataturk training and research hospital, izmir katip celebi university, izmir, turkey; radiology department, ataturk training and research hospital, izmir katip celebi university, izmir, turkey. fax: +90-2322431530 yeliz pekcevik radiology department, tepecik training and research hospital, izmir, turkey

lipomatosis of the nerve, also known as fibrolipomatous hamartoma, is characterized by the infiltration of the nerve by fibro-fatty tissue. the affected nerve becomes thicker, and it simulates a mass lesion. lipomatosis usually affects the median nerve and lipomatosis of the sciatic nerve is extremely rare. magnetic resonance imaging (mri) is the key to diagnosis, and it is usually pathognomoni...

Journal: :iranian journal of radiology 0
yasmin davoudi department of radiology, imam reza hospital, school of medicine, mashhad university of medical sciences, mashhad, iran mohsen foroughipour department of neurology, ghaem hospital, school of medicine, mashhad university of medical sciences, mashhad, iran reza torabi department of radiology, school of medicine, mashhad university of medical sciences, mashhad, iran parvaneh layegh department of radiology, imam reza hospital, school of medicine, mashhad university of medical sciences, mashhad, iran nassim matin school of medicine, tehran university of medical sciences, tehran, iran ali shoeibi department of neurology, ghaem hospital, school of medicine, mashhad university of medical sciences, mashhad, iran; department of neurology, ghaem hospital, school of medicine, mashhad university of medical sciences, p. o. box: 9197969764, mashhad, iran. tel: +98-9155137344, fax: +98-5138429828

conclusion these data indicate that while ce-mri will depict more positive results, there are cases in which dwi will show a positive result while ce-mri is negative. we suggest that the combination of these two imaging modalities might yield more positive results in diagnosing acute ms attack giving rise to a more accurate diagnosis. results ce-mri yielded positive results for 61 (87%) patient...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم پایه دامغان - دانشکده علوم پایه دامغان 1394

در بین انواع نانوذره ها، نانوذره های مغناطیسی (mnps) نظر به کاربرد های بسیاری که در حوزه های مختلفی همچون مایعات مغناطیس (magnetic fluids) کاتالیز (catalysis) ، تصویربرداری رزونانس مغناطیسmagnetic resonance imaging) ) و بازسازی محیط زیست (environmental remediation) دارند توجه پژوهشگران را به خود جلب نموده اند [1]. این نانوذره ها سوپرپارامغناطیس هایی اند که می توانند جذب میدان مغاطیسی شوند اما خ...

Background and purpose: Determining the severity and site of rotator cuff tear (RCT) is very important for choosing a treatment method. In this study, the diagnostic value of indirect magnetic resonance arthrography (I-MRA) and magnetic resonance imaging (MRI) were compared. Materials and methods: This cross-sectional study was performed in 36 patients attending an orthopedic clinic in 2020. P...

Journal: :iranian journal of radiology 0
ramazan buyukkaya department of radiology, school of medicine, duzce university, duzce, turkey; department of radiology, school of medicine, duzce university, duzce, turkey. tel: +90-3805421390, fax: +90-3805421387 ayla buyukkaya department of radiology, duzce ataturk government hospital, duzce, turkey beyhan ozturk department of radiology, school of medicine, duzce university, duzce, turkey huseyin yaman department of ear nose and throat, school of medicine, duzce university, duzce, turkey abdullah belada department of ear nose and throat, school of medicine, duzce university, duzce, turkey

intracranial lipoma is an uncommon entity. a rare type of tumor in the internal auditory canal (iac) and the cerebellopontine angle (cpa) is lipoma. there are a few case reports in the literature related to intravestibular lipoma. herein, we report a case of lipomas within the cerebellopontine angle and vestibule of the inner ear in a patient with tinnitus and dizziness. the patient was evaluat...

Journal: :Progress in Nuclear Magnetic Resonance Spectroscopy 2021

Magnetic Resonance Imaging (MRI) scanners produce loud acoustic noise originating from vibrational Lorentz forces induced by rapidly changing currents in the magnetic field gradient coils. Using zero echo time (ZTE) MRI pulse sequences, switching can be reduced to a minimum, which enables near silent operation. Besides MRI, ZTE offers further interesting characteristics, including nominal of TE...

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