نتایج جستجو برای: magnetic resonance mr
تعداد نتایج: 452166 فیلتر نتایج به سال:
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...
purpose: to record the mri features of primary central nervous system lymphoma (pcnsl) and compare these properties in monofocal and multifocal disease. methods: eleven cases of monofocal disease were compared to 9 cases of multifocal disease. all patients were examined by non-enhanced and contrast-enhanced mri. tumor location, signal intensity, enhancement characteristics, age distribution, pe...
the aim of this review is focusing on the most important safety issues in cardiovascular mri (magnetic resonance imaging) which are categorized as: 1-safety items in patients who referred for stress cardiac mr studies. 2-safety consideration that we must know when a patient with cardiovascular devices referred for any (cardiovascular or non-cardiovascular) mri with focus on new protocols accord...
چکیده ندارد.
Background: The magnetic resonance imaging (MRI)-based radiotherapy planning method have been considered in recent years because of the advantages of MRI and the problems of planning with two images modality. The first step in MRI-based radiotherapy is to evaluate magnetic resonance (MR) images geometric distortion. Therefore, the present study aimed to evaluate system related geometric distort...
Introduction: Along with the increased use of cardiac imaging at clinics there is increased attention to the potential risks related to the methods used like magnetic resonance (MR) and it cannot be ruled out that MR can alter DNA structure. The aim of this review is to assess the impact of routine cardiac magnetic resonance (CMR) scanning on DNA damages in human T lymphocytes....
Background and Aims: Disc displacement is the most common temporomandibular joint disorder and magnetic resonance imaging (MRI) is the gold standard in its diagnosis. This disorder can lead to changes in signal intensity of magnetic resonance (MR). The purpose of this study was evaluation of correlation between relative signal intensity of MR images of retrodiscal tissue, superior and inferior ...
purpose this study was performed to introduce and evaluate the potential of kinematic magnetic resonance imaging (kmri) using a high-field open-magnet magnetic resonance (mr) system. methods we attempted to perform kmri of healthy volunteers’ lumbar spine and knee in the lateral position and ankle in the supine position utilizing the superconducting, horizontally opened, 1.2 t mr system (oasis,...
زمینه و هدف: جابجایی دیسک یکی از شایع ترین اختلالات مفصل گیجگاهی فکی است و (mri) magnetic resonance imaging استاندارد طلایی در تشخیص آن می باشد. این اختلال می تواند تغییراتی در شدت سیگنال تصاویر mr به وجود آورد. هدف از این مطالعه بررسی ارتباط بین شدت نسبی سیگنال تصاویر mr در بافت رترودیسکال و عضله تریگوئید خارجی با انواع جابجایی قدامی دیسک و نیز flattening سر کندیل در بیماران مبتلا به (tmd) tem...
early detection of breast cancer is the most effective way to improve the survival rate in women. magnetic resonance imaging (mri) offers high spatial resolution and good anatomic details, and its lower sensitivity can be improved by using targeted molecular imaging. in this study, as1411 aptamer was conjugated to fe3o4@au nanoparticles for specific targeting of 4t1 cells that overexpress nucle...
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