نتایج جستجو برای: magnetic resonance mr

تعداد نتایج: 452166  

Journal: :Journal of magnetic resonance imaging : JMRI 2001
K J Truscott M H Buonocore

Computer simulation of tagged magnetic resonance (MR) images is presented using signals derived from connected solid triangular or tetrahedral elements. Simulation provides precisely-known deformations for validating tag quantification algorithms. MR imaging signal is derived by Fourier-transforming over a standard element, then mapping to actual elements via transformations. Linear intensity v...

Journal: :iranian journal of radiology 0
zhi-hong shao department of radiology, tongji hospital of tongji university, school of medicine, shanghai, china guo-liang wang department of radiology, tongji hospital of tongji university, school of medicine, shanghai, china xiang-hua yi department of pathology, tongji hospital of tongji university, school of medicine, shanghai, china pei-jun wang department of radiology, tongji hospital of tongji university, school of medicine, shanghai, china; department of radiology, tongji hospital of tongji university, school of medicine, shanghai 200065, china. tel: +86-2166111206, fax: +86-2156952231

intracranial gliosis has no typical clinical signals or imaging characteristics. therefore, it can be easily misdiagnosed as neoplasm. hereby, we report a unique case of gliosis that grew outward from the surface of the brain. mri depicted its signal and enhancement pattern similar to the cerebral gray matter. the diagnosis was confirmed by pathology and immunohistochemistry. although it was di...

Journal: :iranian journal of radiology 0
mohammad hossein hossein daghighi department of radiology, radiotherapy and nuclear medicine, tabriz university of medical sciences, iran 984113346911, [email protected]; department of radiology, radiotherapy and nuclear medicine, tabriz university of medical sciences, iran 984113346911, [email protected] masoud poureisa neurosciences research center (nsrc), tabriz university of medical sciences, iran mohammad shimia department of neurosurgery, shohada hospital, tabriz university of medical sciences, iran ramin mazaheri-khamene department of clinical science, veterinary faculty, urmia university of medical sciences, iran shadi daghighi tabriz university of medical sciences, iran

abstract a patient with a 3-month history of headache refractory to pain medication was admitted. the ct scan and mri showed evidence of a posterior fossa mass. this was pathologically confirmed as an extra medullary plasmacytoma (emp). he had a pathologic fracture of the left humerus 7 years ago while the radiologist was unaware at the time of diagnosis. a solitary bone plasmacytoma (sbp) was ...

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: :anesthesiology and pain medicine 0
nasser heyrani david geffen school of medicine, university of california, los angeles, usa elizabeth picinic norheim department of orthopaedic surgery, harbor-ucla medical center, los angeles, usa yeelan elaine ku david geffen school of medicine, university of california, los angeles, usa arya nick shamie department of orthopaedic surgery, santa monica-ucla medical center, los angeles, usa; corresponding author: arya nick shamie, department of orthopaedic surgery, santa monica-ucla medical center, los angeles, usa. tel: +1-3104402999, fax: +1-3103191240, e-mail:

results compared to pre-op scores, pf, ss, and vas scores for back, buttock and leg pain had a significant mean decrease at 6, 12, 24 months post-op (p < 0.05). based on the zcq and vas scores, a success rate of 79% (27.34), 78% (30.38) and 74% (17.23) were achieved at six months, 12 months, and 24 months respectively. conclusions x-stop is a safe and effective treatment for nic that provides m...

Journal: :archives of cardiovascular imaging 0
zahra alizadeh sani rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran alireza heidari bokavoli cardiovascular research center, school of medicine, mashhad university of medical sciences, mashhad, ir iran mohammad vojdanparast cardiovascular research center, school of medicine, mashhad university of medical sciences, mashhad, ir iran; cardiovascular research center, school of medicine, mashhad university of medical sciences, mashhad, ir iran. tel: +98-9155147624, fax: +98- 5118453239 azin seifi department of medical sciences, mashhad branch, islamic azad university, mashhad, ir iran

introduction cardiac hydatid cysts are rare and represent less than 2% of all hydatid cases. they can occur as part of a widespread systemic infection or an isolated event. case presentation here, we presented a case of cardiac hydatid cyst in interventricular septum. conclusions the case presented had some findings that suggested the specific diagnosis of hydatid cyst.

2015
Ziyad Almushayti Husam Almuhaish

We report a case of an unusual epidermoid cyst in cerebellopontine angle that appeared hyperdense on computed tomography (CT) scanning, hyperintense on T1-weighted MR images and hypointense on T2/ FLAIRweighted magnetic resonance (MR) images. Diffusion-weighted imaging in post resection follow up study showed a focal restraction lesion, low on Apperent diffusion cooficent images.

2017
Manuel Schneider Felix Lugauer Brian M Dale Berthold Kiefer Mustafa R Bashir

Pattern Recognition Lab, Department of Computer Science, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany, MR Applications Predevelopment, Siemens Healthcare GmbH, Erlangen, Germany, MR R&D Collaborations, Siemens Healthcare, Cary, NC, United States, Radiology, Duke University Medical Center, Durham, NC, United States, Center for Advanced Magnetic Resonance Development, Duke...

Journal: :Annali di stomatologia 2010
Valentina Pompa Sabrina Galasso Michele Cassetta Giorgio Pompa Francesca De Angelis Stefano Di Carlo

AIM A successful implant therapy is based on an accurate assessment of the anatomy of the jaws. The aim of our study was to evaluate the reliability of magnetic resonance imaging (MR) compared with computed tomography (CT) for dental implant planning in respect to bone measurements and to observe and analyze the differences. METHOD We have studied 30 cases in which scans were performed with C...

F. Kossari, H. Khani, M. H. Zahmatkesh, Sh. Akhlaghpoor,

Background: Magnetic Resonance Imaging (MRI) is a safe modality and useful in characterizing normal and abnormal bone marrow (BM). MRI also presents a more global view of BM than biopsy therefore, it may provide a better understanding of hematologic disorders. The purpose of this study was to monitor radiation-induced alterations of BM in acute phase of irradiation (1-10 day after total body ir...

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