نتایج جستجو برای: magnetic resonsnce imaging
تعداد نتایج: 678720 فیلتر نتایج به سال:
how to cite this article: abbad a, afzal k, mujeeb aa, shahab t, khalid m. spontaneous ventral spinal epidural hematoma in an infant: an unusual presentation. iran j child neurol. 2013 spring;7(2):47-50. abstract spontaneous ventral spinal epidural hematomas are extremely rare in children and clinically recognized by the appearance of acute asymmetric focal motor and sensory involvement. in in...
results a low adc value was associated with lymph node metastasis (p < 0.01) and with high ki-67 protein levels (p = 0.03). there were no significant differences in the adc values among the histological grade (p = 0.48), molecular subtype (p = 0.51), tumor size (p = 0.46), and p53 protein level (p = 0.62). conclusion the pre-operative use of the 3.0 tesla dwi could provide information about the...
background considerable development of mri technology in diagnostic imaging, high cost of mri technology and controversial issues concerning official charges (tariffs) have been the main motivations to define and implement this study. objectives the present study aimed to calculate the unit-cost of mri services using activity-based costing (abc) as a modern cost accounting system and to fairly ...
macrodystrophia lipomatosa is a rare congenital form of localized gigantism characterized by an increase in all mesenchymal elements, particularly fibroadipose tissue. mr imaging can be used to examine the soft tissue and detect the fibrous and fatty hypertrophy that characterizes this condition and also diagnose an associated fibrolipomatous hamartoma of the median or plantar nerve. we describ...
results of the 41 patients with dcm, echocardiography examination revealed 11 patients (27%) without mitral regurgitation and 12 (29%) with mild, 11 (27%) with moderate, and seven (17%) with severe mitral regurgitation. all of the morphological and functional parameters of left ventricle, atrium and mitral valve in dcm patients were greater than those in healthy subjects (all p < 0.05), except ...
introduction: a fixed hemodynamic response function (hrf) is commonly used for functional magnetic resonance imaging (fmri) analysis. however, hrf may vary from region to region and subject to subject. we investigated the effect of locally estimated hrf (in functionally homogenous parcels) on activation detection sensitivity in a heroin cue reactivity study. methods: we proposed a novel explora...
Introduction: Bacterial meningitis is an acute infectious inflammation of the protective membranes covering the brain. Its early diagnosis is vital because of its high morbidity and mortality. It is mostly diagnosed by a gold standard diagnostic tool i.e. Cerebrospinal Fluid (CSF) analysis. However, it is sometimes difficult and or impossible to do this procedure and an alternative diagnostic t...
روش تصویربرداری functional mri روشی غیر تهاجمی برای بررسی عملکرد تابعی مغز است. به بیان واضح تر برای بررسی اینکه برای هر دسته از اعمال بدن انسان کدام قسمت از مغز فعال است، ازاین نوع تصویربرداری استفاده می شود. همانطور که واضح است در یک لحظه مشخص بیش از یک قسمت از مغز انسان فعال است. لذا برای شناسایی عملکرد بخش خاصی از مغز نیاز داریم تا با یک روش خاص مراکز مختلف فعالیت در مغز را از یکدیگر متمای...
conclusions according to our multimodality imaging approach, hypertrophic cardiomyopathy was the most probable diagnosis. case presentation we describe a 73-year-old woman referred to us for consultation because of a giant negative t wave on her electrocardiography. echocardiography revealed diffuse severe hypertrophy associated with hypertrophied anterolateral papillary muscles with a bifid he...
giant uterine leiomyomas are extremely rare neoplasms and are challenging both diagnostically and therapeutically. a 49-year-old premenopausal female presented at our department complaining of abdominal pain and distention for several years. ultrasound (us), color doppler us, abdominal computed tomography imaging after administration of contrast material, and abdominal magnetic resonance imagin...
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