نتایج جستجو برای: magnetic resonance imaging

تعداد نتایج: 737343  

Journal: :iranian journal of radiology 0
myeong seong kim department of radiology, the korean national cancer center, goyang-si, republic of korea; department of radiology, the korean national cancer center, goyang-si, republic of korea. tel: +82-319201195, fax: +82-319201171

conclusion a higher magnetic field strength and a decrease in the hr resulted in an increase in body temperature during the mri procedure. results our investigation of the physiological response to rf heating indicated a link between increasing age and body temperature. a higher increase in body temperature was observed in older patients after a 3.0-t mri (r = 0.07, p = 0.29 for 1.5-t mri; r = ...

Journal: :iranian journal of radiology 0
ozlem marti akgun department of pediatric dentistry, gulhane medical academy, ankara, turkey; department of pediatric dentistry, gulhane medical academy, ankara, turkey. tel: +90-3123041462 gunseli guvenpolat department of pediatric dentistry, gulhane medical academy, ankara, turkey ahmet turanillca department of radiology, izmir mevki military hospital, izmir, turkey ceren yildirim department of pediatric dentistry, gulhane medical academy, ankara, turkey pervin demir department of biostatistics and medical informatics, yildirimbeyazit university, ankara, turkey feridun basak department of pediatric dentistry, gulhane medical academy, ankara, turkey

conclusions the results of this study suggest that mri does not increase microleakage of amalgam restorations. results in teeth with amalgam filling, there were no significant differences of occlusal and gingival surface microleakage after mri exposure. occlusal and gingival surface microleakages were also similar with and without mri in teeth with bonded amalgam filling. materials and methods ...

Journal: :iranian journal of radiology 0
m. i̇lkay koşar department of anatomy, faculty of medicine, cumhuriyet üniversity, turkey i̇lhan otağ vocational school of health services, cumhuriyet üniversity, turkey ; vocational school of health services, cumhuriyet üniversity, turkey vedat sabancıoğulları department of anatomy, faculty of medicine, cumhuriyet üniversity, turkey mehmet atalar department of radiology, faculty of medicine, cumhuriyet üniversity, turkey hasan tetiker department of anatomy, faculty of medicine, muğla üniversity, turkey aynur otağ physical education and sport high school, cumhuriyet üniversity, turkey

background morphometric data of the frontal lobe are important for surgical planning of lesions in the frontal lobe and its surroundings. magnetic resonance imaging (mri) techniques provide suitable data for this purpose. objectives in our study, the morphometric data of mid-sagittal mri of the frontal lobe in certain age and gender groups of children have been presented. patients and methods i...

Journal: :caspian journal of neurological sciences 0
mahdiyeh saberi fariborz faeghi medical physicist, assistant professor of medical imaging, department of radiology technology, faculty of allied medical sciences, shahid beheshti university of medical sciences, tehran, iran ; [email protected] hossein ghanaati mojtaba miri ayoob rostamzadeh soheila khodakarim

background: gliomas are the most common primary neoplasms of the central nervous system. relative cerebral blood volume (rcbv) could estimate high-grade gliomas computed with dynamic susceptibility contrast mr imaging which it is artificially lowered by contrast extravasation through a disrupted blood-brain barrier. objectives: our intent was to clarify the usefulness of diffusion-weighted magn...

Journal: :acta medica iranica 0
masoud poureisa neurosciences research center (nsrc), tabriz university of medical sciences, tabriz, iran. and department of radiology, radiotherapy and nuclear medicine, tabriz university of medical sciences, tabriz, iran. mohammad hossein daghighi department of radiology, radiotherapy and nuclear medicine, tabriz university of medical sciences, tabriz, iran. haidar esmaili department of pathology, school of medicine, tabriz university of medical sciences, tabriz, iran. ramin mazaheri-khameneh department of surgery and diagnostic imaging, school of veterinary medicine, urmia university, urmia, iran.

we report a patient diagnosed with whipple's disease (wd) who presented only with neurological symptoms. neuroimaging (mri) showed lesions with marked mass effect similar to infiltrative tumors, which were hypersignal on long tr and hyposignal on short tr images, located in several areas of the brain. in serial controls, lesions resolved with gliosis and atrophic changes as well as migration of...

Journal: :asia pacific journal of medical toxicology 0
yasmin davoudi assistant professor, department of radiology, school of medicine, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) bita dadpour assistant professor, department of internal medicine, medical toxicology centre, school of medicine, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) reza afshari associate professor, department of internal medicine, medical toxicology centre, school of medicine, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) naser hasaniyeh resident, department of radiology, school of medicine, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) nassim matin student, school of medicine, tehran university of medical sciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) mahboobeh rahimi-doab psychologist, cardiac anesthesia research center, imam reza hospital, school of medicine, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences)

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 ...

Journal: :archives of cardiovascular imaging 0
roy beigel the heart institute, cedars sinai medical center, david geffen school of medicine, ucla joao carlos tress hospital universitario pedro ernesto louise elizabeth jane thomson the heart institute, cedars sinai medical center, david geffen school of medicine, ucla daniel james luthringer department of pathology, cedars sinai medical center, david geffen school of medicine alexander shturman department of cardiovascular medicine, western galilee hospital, bar ilan university alfredo trento the heart institute, cedars sinai medical center, david geffen school of medicine, ucla

introduction while primary malignant tumors of the heart are rare, angiosarcomas are the most common cardiac malignant tumors. case presentation we describe a 23-year-old woman who presented with a right atrial mass, which was discovered to be a cardiac angiosarcoma. we demonstrate the use of several noninvasive imaging modalities along with pathology confirmation for the definitive and compreh...

Journal: :iranian journal of radiology 0
xiaona li department of radiology, the third hospital of hebei medical university,hebei province biomechanical key laboratory of orthopedics,shijiazhuang, hebei, china zhigang peng department of radiology, the third hospital of hebei medical university,hebei province biomechanical key laboratory of orthopedics,shijiazhuang, hebei, china jingpin zhao department of radiology, the third hospital of hebei medical university,hebei province biomechanical key laboratory of orthopedics,shijiazhuang, hebei, china zekun zhang department of radiology, the third hospital of hebei medical university,hebei province biomechanical key laboratory of orthopedics,shijiazhuang, hebei, china; department of radiology, the third hospital of hebei medical university, shijiazhuang, hebei, 050051, china. tel: +86-31188603361, fax: +86-31187023626

thisis a case report of a 24-year-old man who presented with increased pain and firm swelling of the right foot after a minor twisting injury. radiography, computed tomography (ct) and magnetic resonance imaging (mri) findings showed ancillary information that was helpful for surgical treatment. the final diagnosis was confirmed aschondroblastoma of the navicular bone based on the pathology rep...

Journal: :iranian red crescent medical journal 0
masoumeh gity advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, ir iran; advanced diagnostic and interventional radiology research center, medical imaging center, imam khomeini hospital, keshavarz blvd., tehran, ir iran. tel: +98-2166581579, fax: +98-2166581578 koosha ghazi moghadam clinic of solingen, medical university of cologne, cologne, germany amir hossein jalali advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, ir iran madjid shakiba advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, ir iran

conclusions although in our study washout pattern was the most powerful indicator for malignant pathology in non mass like enhancing lesions, more studies with larger sample size needs in this regard. background several studies on the diagnostic efficacy of mri has not real consensus for the accuracy of mri characteristics in non mass like breast lesions, and the number of malignant lesions in ...

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...

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