نتایج جستجو برای: magnetic resonanceimaging mri

تعداد نتایج: 409578  

2015
Aapeli Takala Raimo Sepponen Toni Auranen

Proton resonance frequency (PRF), by which it precesses in the magnetic field, alters due to change in temperature, which can be detected with magnetic resonance imaging (MRI). MRI scanner uses protons’ nuclear magnetic resonance phenomenon. The target is first excited with a radio frequency pulse, then it’s relaxation to initial stage is observed. Parts with different temperatures can be mappe...

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
maryam koopaie department of oral medicine and diagnostic sciences, shahed dental school, te-hran, iran abbas karimi oral and maxillofacial surgery department, faculty of dentistry, tehran university of medical science, tehran, iran

introduction: squamous cell carcinoma (scc) is the most common head and neck malignancy. to decrease the side effects of treatment and mortality from disease relapse, careful staging for the proper treatment plan is necessary. the main purpose of this prospective study is to compare the diagnostic value of computed tomography (ct) and magnetic resonance im-aging (mri) in oral scc and its lymph ...

2015
Andrew Gorlin Joseph M Hoxworth William Pavlicek Christopher A Thunberg David Seamans

Vertigo induced by exposure to the magnetic field of a magnetic resonance imaging (MRI) scanner is a well-known phenomenon within the radiology community but is not widely appreciated by other clinical specialists. Here, we describe a case of an anesthetist experiencing acute vertigo while providing sedation to a patient undergoing a 3 Tesla MRI scan. After discussing previous reports, and the ...

2014
A. Taqaddas

Magnetic Nanoparticles (MNPs) have great potential to overcome many of the shortcomings of the present diagnostic and therapeutic approaches used in cancer diagnosis and treatment. This Literature review discusses the use of Magnetic Nanoparticles focusing mainly on Iron oxide based MNPs in cancer imaging using MRI. Keywords—Cancer, Imaging, Magnetic Nanoparticles, MRI.

Bita Dadpour, Mahboobeh Rahimi-Doab Naser Hasaniyeh Nassim Matin, Reza Afshari, Yasmin Davoudi,

Background: Carbon monoxide (CO) poisoning may lead to hypoxic/anoxic injury and eventually ischemic encephalopathy. Magnetic resonance imaging (MRI) has a well-recognized role in assessment of the severity of brain damage caused by CO poisoning. In this study, we aimed to present and analyze the structural abnormalities in the brain MRI and especially in diffusion weighted MRI (DWI) images in ...

حبیبی, اصغر, حنفی بجد, راضیه, عطایی ‌بجد, محمدصدیق,

Ejaculatory duct cyst causes ejaculatory duct obstruction, azoospermia and male infertility.We report a 22 years old patient with ejaculatory duct cyst that presented with low ejaculation volume and azoospermia syndrome. Transrectal ultrasound (TRUS) and magnetic resonance image (MRI) revealed a midline prostatic cystic structure. In this case, we performed transurethral incision and/or resecti...

Journal: :Polish journal of veterinary sciences 2011
Z Adamiak M Jaskólska H Matyjasik A Pomianowski M Kwiatkowska

The presented paper presents updated information concerning magnetic resonance imaging (MRI) of shoulder joint, elbow joint and knee joint in dogs. It describes indications, planes, standard sequences, slice thickness to perform MRI examination of above mentioned joints. Besides general information about basic physics use in magnetic resonance imaging, and practical information about magnetic r...

پایان نامه :دانشگاه تربیت معلم - سبزوار - دانشکده برق و کامپیوتر 1392

در حال حاضر چندین روش برای اندازه گیری چربی زیرپوستی بدن در حوزه های بالینی وجود دارد ، مانند : magnetic resonance imaging(mri)، (computer tomography(ct، ultrasound imaging(us) ، dual energy x-ray absorptiometry(dexa). این روش ها بطور وسیعی در حوزه های بالینی به عنوان وسایل دقیق و مفید ، مورد استفاده قرار می گیرند. به هر حال این روش ها محدودیت های زیادی مانند هزینه بالا و یا خطر تابش اشعه را دا...

Ali Zamanian, Aliasghar Behnamghader Ibrahim Sharifi,

Magnetic nanoparticles attracted a great deal of attention in the medical applications due to their unique properties. The most exceptional property of magnetic particles is their response to a magnetic force, and this property has been utilized in applications such as drug targeting, bioseparation, contrast agents in magnetic resonance imaging (MRI) and heating mediators for cancer therapy. In...

2013
Panu Vesanen Risto Ilmoniemi

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Panu Vesanen Name of the doctoral dissertation Combined ultra-low-field MRI and MEG: instrumentation and applications Publisher School of Science Unit Department of Biomedical Engineering and Computational Science Series Aalto University publication series DOCTORAL DISSERTATIONS 87/2013 Field of research Biomedical Engineering...

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