نتایج جستجو برای: MRI imaging

تعداد نتایج: 515610  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی و مهندسی 1390

magnetic resonance imaging (mri) is a notable medical imaging technique that makes of phenomenon of nuclear magnetic resonance. because of the resolution and the technology being harmless, mri has considered as the most desirable imaging technique in clinical applications. the visual quality of mri plays an important role in accuracy of medical delineations that can be seriously degraded by exi...

Journal: :caspian journal of internal medicine 0
mehrdad saravi ahmad tamadoni rozita jalalian hasan mahmoodi nesheli mosatafa hojati saeed ramezani

background: iron-mediated cardiomyopathy is the main complication of thalassemia major (tm) patients. therefore, there is an important clinical need in the early diagnosis and risk stratification of patients. the aim of this study was to evaluate the efficacy of tissue doppler imaging (tdi) to study cardiac iron overload in patients with tm using t2* magnetic resonance (mr) as the gold-standard...

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 radiation research 0
t.a. heusner university of dusseldorf, medical faculty, department of diagnostic and interventional radiology, d-40225 dusseldorf, germany c. mikat university of duisburg-essen, medical faculty, department of diagnostic and interventional radiology and neuroradiology, d-45147 essen, germany s. hahn university of duisburg-essen, medical faculty, department of diagnostic and interventional radiology and neuroradiology, d-45147 essen, germany j. altenbernd university of duisburg-essen, medical faculty, department of diagnostic and interventional radiology and neuroradiology, d-45147 essen, germany a. stahl university of duisburg- essen, medical faculty, department of nuclear medicine, d-45147 essen, germany a. bockisch university of duisburg- essen, medical faculty, department of nuclear medicine, d-45147 essen, germany

background: to retrospectively describe imaging characteristics of liver metastases on fused fdg-pet/ mri data sets and to compare the diagnostic accuracy of mri and fused fdg-pet/mri data sets for the detection of liver metastases in patients undergoing systemic anticancer treatment. materials and methods: 43 oncological patients (mean age: 56+/- 11 years) were investigated by fdg-pet/ct and l...

Journal: :international journal of occupational and environment medicine 0
s yilmaz department of oral and maxillofacial radiology, faculty of dentistry, kirikkale university, kirikkale, turkey

[no abstract available]

Journal: Nanomedicine Journal 2020

Bimodal imaging combines two imaging modalities in order to benefit from their advantages and compensate the limitations of each modality. This technique could accurately detect diseases for diagnostic purposes. Nanoparticles simultaneously offer diagnostic data via various imaging modalities owing to their unique properties. Moreover, bimodal nanoprobes could be incorporated into theranostic s...

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: :international journal of epidemiologic research 2015
ayoob rostamzadeh masoud amiri mohammad gharib salehi hossein masoumi

magnetic resonance imaging (mri) uses a constant magnetic field and radio waves, a non-invasive method for examining tissues, organs and the skeletal system. the advantages and disadvantages of mri is not fully understood. in the computerized tumor (ct) scan, as an invasive method, the x-rays of the body is used for tomography; which different x-ray attenuation coefficient in tissues as well as...

Journal: :مجله دانشگاه علوم پزشکی کرمانشاه 0
elham shobeiri dept. of radiology, school of medicine, kermanshah university of medical sciences, kermanshah hamidreza saeedi dept. of nurosurgery, school of medicine, kermanshah university of medical sciences, kermanshah jafar keyhanshokooh dept. of radiology, school of medicine, kermanshah university of medical sciences, kermanshah mansour rezaei dept. biostatistic and epidemiology, school of health, kermanshah university of medical sciences, kermanshah

background: this study aimed to determine relationship between mri imaging results and demographic characteristics of patients with low back pain and lower extremity radiculopathy. methods: this analytic-comparative study was carried out from april 2007 until march 2008   on patient   referred to imam reza hospital in kermanshah. demographic features and mri imaging results of 242 patients with...

Journal: :iranian rehabilitation journal 0
farin solimani pediatric neurorehabiliation research center, university of social welfare and rehabilitation sciences, tehran, iran. fereshteh narenji shahid behshti university of medical science, tehran, iran. masoumeh pourmohsen shahid behshti university of medical science, tehran, iran. khoshe khalrghinejad shahid behshti university of medical science, tehran, iran. nahid mehran shahid behshti university of medical science, tehran, iran.

cerebral palsy is the most common chronic motor disorder of childhood, that affecting approximately 3 infants per 1000 live-births. the risk of brain injuries that potentially cause cerebral palsy has amplified with increasing in survival rates for preterm infants. in addition cerebral palsy has a huge economic impact, to immeasurable health, social, and psychological problems that affected chi...

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