نتایج جستجو برای: dynamic contrastenhanced magnetic resonance imaging

تعداد نتایج: 1115383  

Journal: :iranian journal of neurology 0
payam sariaslani assistant professor, kermanshah university of medical sciences, kermanshah, iran. ali ghanbari assistant professor, fertility and infertility center, kermanshah university of medical sciences, kermanshah, iran parvin ghanbari cardiac rehabilitation center, imam ali hospital, kermanshah university of medical sciences, kermanshah, iran

levamisole is an anthelmintic agent and also immunostimulant drug which is used to treat colorectal cancer. the present study aimed to show accidental consumption of levamisole alone induced multifocal inflammatory leukoencephalopathy. a 53-year-old male was admitted to the neurology department of farabi hospital (kermanshah, iran) with walking inability and recognition disorder. following clin...

ژورنال: :مجله دانشکده پزشکی دانشگاه علوم پزشکی تهران 0
مهیار غفوری mahyar ghafoori گروه رادیولوژی دانشگاه علوم پزشکی تهران مریم علیزاده maryam alizadeh گروه رادیولوژی دانشگاه علوم پزشکی تهران جلیل کوهپایه زاده jalil kuhpayehzade گروه پزشکی اجتماعی دانشگاه علوم پزشکی تهران

زمینه و هدف: سرطان پروستات سومین علت مرگ و شایع ترین علت سرطان در مردان مسن است. با توجه به توانایی تشخیصی پایین روش های غربالگری در تشخیص و لوکالیزه کردن تومور، روش های تصویربرداری از جمله magnetic resonance imaging (mri) و diffusion weighted imaging (dwi) در سال های اخیر مورد توجه و استقبال قرار گرفته است. در این تحقیق، ارزش استفاده از dwi برای تشخیص سرطان های پروستات بررسی گردید.روش بررسی: ا...

Journal: :iranian journal of radiology 0
wen quan ding department of hand surgery, ningbo no.6 hospital, ningbo university, ningbo, china jian hui gu department of hand surgery, hand surgery research center, affiliated hospital of nantong university, nantong university, nantong, china yong yuan department of radiology, jiangsu province official hospital, jiangsu jiankang vocational college, nanjing, china dong sheng jin department of radiology, jiangsu province official hospital, jiangsu jiankang vocational college, nanjing, china; department of radiology, jiangsu province official hospital, jiangsu jiankang vocational college, nanjing, china. tel: +86-02583712838-3067, fax: +86-02586631726

results stereoscopic displays of the nerves were obtained in all 24 elbows by vr, mip, and fiber tractography post-processing methods. the vr/mip post-processing methods were easier to perform compared to fiber tractography. there was no significant difference among the scores of fiber tracking and vr/mip reconstruction for single direction. the imaging quality scores of fiber tractography and ...

Journal: :anatomical sciences journal 0
amir abdolmaleki department of anatomy and cell biology, school of medicine, shahid beheshti university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) reza mastery farahani department of anatomy and cell biology, school of medicine shahid beheshti university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) seyed kamran ghoreishi department of statistics, faculty of sciences, university of qom, qom, iran.سازمان اصلی تایید شده: دانشگاه قم (qom university) fatemeh shaerzadeh department of physiology, faculty of medicine, hormozgan university of medical sciences, bandar abbas, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی هرمزگان (hormozgan university of medical sciences) abbas aliaghaei department of anatomy and cell biology, school of medicine, shahid beheshti university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) seyyed hossein mirjavadi advanced diagnostic and interventional radiology research center, tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)

introduction: interhemispheric transmission of signal is done by corpus callosum (cc) as the largest fiber tract in brain. cc comprised 5 segments of rostrum, genu, body, isthmus, and splenium. contradictory reports exist about sexual dimorphism of cc. we designed this study to assess probable sexual differences of cc and its different parts in men and women. methods: we analyzed magnetic reson...

Journal: :anatomical sciences journal 0
bahador shojaei department of basic sciences, faculty of veterinary medicine, shahid bahonar university of kerman, kerman, iran. hadi tavakoli department of clinical sciences, faculty of veterinary medicine, shahid bahonar university of kerman, kerman, iran.سازمان اصلی تایید شده: دانشگاه شهید باهنر (shahid bahonar university) mohammad javad aghasizade faculty of veterinary medicine, shahid bahonar university of kerman, kerman, iran.سازمان اصلی تایید شده: دانشگاه شهید باهنر (shahid bahonar university) hamed reza sayyah badkhor kowsar mri center, imam reza hospital, mashhad, iran.سازمان اصلی تایید شده: دانشگاه شهید باهنر (shahid bahonar university)

introduction: the magnetic resonance imaging (mri) technique permits to monitor the development of the embryo in vivo without causing any developmental defects. although increasing application of mri imaging are predicted in veterinary sciences, there is little information available about mri studies of avian embryos and their eggs. the objective of the present study was to evaluate the ostrich...

Journal: :iranian journal of radiology 0
faizatul izza rozalli department of biomedical imaging, faculty of medicine, university of malaya, kuala lumpur, malaysia; department of biomedical imaging, faculty of medicine, university of malaya, kuala lumpur, malaysia. tel: +6-0173340008 kartini rahmat department of biomedical imaging, faculty of medicine, university of malaya, kuala lumpur, malaysia farhana fadzli department of biomedical imaging, faculty of medicine, university of malaya, kuala lumpur, malaysia colm boylan department of diagnostic imaging, st joseph’s healthcare, hamilton, canada pratima deb department of diagnostic imaging, st joseph’s healthcare, hamilton, canada

decidualized ovarian endometrioma is a rare phenomenon in pregnancy, which can mimic ovarian malignancy in imaging and often poses a diagnostic challenge. we report a case of a large ruptured decidualized ovarian endometrioma in a 15 weeks gestation patient, and we will describe the imaging characteristics (ultrasonography and mr imaging findings) and the histopathological findings (macro- and ...

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...

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