نتایج جستجو برای: Magnetic resonance spectroscopy

تعداد نتایج: 539695  

Journal: :journal of paramedical sciences 0
vahid changizi technology of radiology and radiotherapy department, center of health information management research, allied medical sciences school, tehran university of medical sciences, tehran, iran farahnaz azarakhsh department of biology, science and research branch, islamic azad university, tehran, iran mehdi pooladi department of biology, science and research branch, islamic azad university, tehran, iran

nowadays brain tumors remain as a significant cause of morbidity and mortality and are often treatment refractory. the grading of brain tumor has an important implication in clinical management. currently, magnetic resonance spectroscopy (mrs) is an important modality in evaluating and grading brain tumors. the aim of this study is  evaluation of metabolites in the differentiation of brain tumo...

Journal: :iranian journal of child neurology 0
guruprasada shetty 1.department of pediatrics, father muller medical college,mangalore karnataka, india kadke shreedhara avabratha 1.department of pediatrics, father muller medical college,mangalore karnataka, india boodyar sanjeev rai 1.department of pediatrics, father muller medical college,mangalore karnataka, india

how to cite this article: shetty g, avabratha k.s, rai b.s. ring-enhancing lesions in the brain: a diagnostic dilemma. iran j child neurol. 2014 summer;8(3): 61-64. abstract the most common radiological abnormality seen in young indian patients with epilepsy is single small enhancing (ring/disc) computed tomographic (ct) lesions. the two most common differential diagnosis of this lesion in clin...

Journal: :iranian journal of radiology 0
feng chen department of radiology, hainan general hospital, haikou, china min guo psychological research center, hainan general hospital, haikou, china; psychological research center, hainan general hospital, haikou, china. tel/fax: +86-89868622423 tao liu department of neurology, hainan general hospital, haikou, china xiang ling jiang psychological research center, hainan general hospital, haikou, china jian jun li department of radiology, hainan general hospital, haikou, china jun cheng guo psychological research center, hainan general hospital, haikou, china

conclusion distinct neurochemical and histological structure changes (cortico-striatal-thalamic-cortical cycle) exist in patients with first-episode ocd. 1h-mrs is capable of identifying these changes by assessing metabolic abnormalities. objectives this study aims to use magnetic resonance spectroscopy (mrs) to discover substance-metabolism abnormalities of brain circuits in patients with firs...

Journal: :iranian journal of radiology 0
hasan aydin mri department, s.b. ankara diskapi yildirim beyazit education and research hospital, irfan bastug st.,, turkey +90-5057994013, [email protected] nilay aydin oktay mri department, s.b. ankara diskapi yildirim beyazit education and research hospital, irfan bastug st.,, turkey +90-5057994013, [email protected] volkan kizilgoz mri department, s.b. ankara diskapi yildirim beyazit education and research hospital, irfan bastug st.,, turkey +90-5057994013, [email protected]; mri department, s.b. ankara diskapi yildirim beyazit education and research hospital, irfan bastug st.,, turkey +90-5057994013, [email protected] elif altin altin mri department, s.b. ankara diskapi yildirim beyazit education and research hospital, irfan bastug st.,, turkey +90-5057994013, [email protected] idil gunes tatar mri department, s.b. ankara diskapi yildirim beyazit education and research hospital, irfan bastug st.,, turkey +90-5057994013, [email protected] baki hekimoglu vascular interventional department, s.b. ankara diskapi yildirim beyazit education and research hospital, turkey

background epilepsy, a well-known mostly idiopathic neurologic disorder, has to be correctly diagnosed and properly treated. up to now, several diagnostic approaches have been processed to determine the epileptic focus. objectives the aim of this study was to discover whether proton-mr-spectroscopic imaging (mrsi) aids in the diagnosis of temporal lobe epilepsy in conjunction with classical ele...

Journal: :iranian journal of parasitology 0
guocai yang dept. of radiology (mri), qinghai provincial people's hospital, xining, china. qingxin zhang dept. of radiology (mri), qinghai provincial people's hospital, xining, china. guibo tang dept. of radiology (mri), qinghai provincial people's hospital, xining, china. hui xu dept. of radiology (mri), qinghai provincial people's hospital, xining, china. zhen yang dept. of radiology (mri), qinghai provincial people's hospital, xining, china. jianzhong guo dept. of radiology (mri), qinghai provincial people's hospital, xining, china.

background: to analyze the characteristic performance of magnetic resonance spectroscopy (mrs) and susceptibility weighted imaging (swi) in cerebral alve-olar echinococcosis (cae). methods: we retrospectively analyzed 10 clinical-identified cae cases mr per-formance, and summarized the mrs and swi performance of cae. results: the 10 cases of cae all had the history of primary hae, among who 6 c...

Journal: :iranian journal of neurology 0
mousa reza anbarloui department of neurosurgery, school of medicine, shariati hospital, tehran university of medical sciences, tehran, iran. seyed mohammad ghodsi department of neurosurgery, school of medicine, shariati hospital, tehran university of medical sciences, tehran, iran. alireza khoshnevisan department of neurosurgery, school of medicine, shariati hospital, tehran university of medical sciences, tehran, iran. masoud khadivi department of neurosurgery, school of medicine, shariati hospital, tehran university of medical sciences, tehran, iran. sina abdollahzadeh department of neurosurgery, school of medicine, shariati hospital, tehran university of medical sciences, tehran, iran. ahmad aoude department of neurosurgery, school of medicine, shariati hospital, tehran university of medical sciences, tehran, iran.

background: distinction between radiation necrosis and recurrence of intraparenchymal tumors is necessary to select the appropriate treatment, but it is often difficult based on imaging features alone. we developed an algorithm for analyzing magnetic resonance spectroscopy (mrs) findings and studied its accuracy in differentiation between radiation necrosis and tumor recurrence. m e t hod s :  ...

Journal: :iranian journal of radiology 0
alireza rezvanizadeh department of radiology, faculty of medicine, tehran university of medical sciences, iran kavous firouznia department of radiology, faculty of medicine, tehran university of medical sciences, iran; eeva~wmentiognstioloo},ioue{wentioogmnwagmo ow} [msma{komgmn}ezo{qm}sm,cmx~e~,u~m~wsiuigrmtycon _gmmocmssciences, iran +98-21-66581579, [email protected]; eeva~wmentiognstioloo},ioue{wentioogmnwagmo ow} [msma{komgmn}ezo{qm}sm,cmx~e~,u~m~wsiuigrmtycon _gmmocmssciences, iran +98-21-66581579, [email protected] mohammad salehi-sadaghiani faculty of medicine, tehran university of medical sciences, iran meisam mohseni department of neurosurgery, faculty of medicine, tehran university of medical sciences, iran

background although magnetic resonance spectroscopy (mrs) has been shown as an effective diagnostic tool in distinguishing inflammation from neoplasm in cystic brain lesions, the optimum approach in selecting the portions of lesions in mrs and the possible effects of different times of echoes (tes) remains unknown. objectives to determine the most effective te in diagnosing neoplastic lesions b...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان فارس - دانشکده دندانپزشکی 1380

چکیده ندارد.

Journal: :international journal of endocrinology and metabolism 0
mostafa rezaei-tavirani proteomics research center, faculty of paramedical sciences, shahid beheshti university of medical sciences, ir iran fariba fathi department of chemistry, sharif university of technology, p.o. box 11155-9516, ir iran +98-2166165305, [email protected] fatemeh darvizeh department of medicine, debrecen medical school, hungary mohamad reza reza zali research center for gastroenterology and liver disease, shahid beheshti university of medical sciences, ir iran mohamad rostami rostami nejad acute medicine, dudley group of hospital, uk kamran rostami department of basic science faculty of paramedical sciences, shahid beheshti university of medical sciences, p.o. box: 19395-4618, ir iran +98-2122718505, [email protected]

background celiac disease (cd) is a disorder associated with body reaction to gluten. after the gluten intake, an immune reaction against the protein occurs and damages villi of small intestine in celiac patients gradually. objectives the osc, a filtering method for minimization of inter- and intra-spectrometer variations that influence on data acquisition, was applied to biofluid nmr data of c...

Journal: :iranian journal of radiology 0
reza faghihi mohammad amin mosleh-shirazi reza jalli shiraz university of medical sciences, shiraz, iran sedigheh sina mahdi haghighatafshar nuclear medicine and molecular imaging research center, shiraz university of medical science, shiraz, iran banafsheh zeinali-rafsanjani medical imaging research center, shiraz university of medical sciences, shiraz, iran; medical imaging research center, shiraz university of medical sciences, shiraz, iran

conclusions by a simple check of the water peak characteristics, lots of information can be obtained, one of which is the status of shimming that has a considerable effect on the accuracy of the spectrum. thus, performing an automatic or manual shimming is not a criterion of the spectrum accuracy, and performing a periodic quality control using a test phantom by a specialist is necessary. brief...

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