نتایج جستجو برای: conventional mri
تعداد نتایج: 359813 فیلتر نتایج به سال:
BACKGROUND Medial meniscal extrusion (MME) is associated with progression of medial knee osteoarthritis (OA), but no or little information is available for relationships between MME and osteophytes, which are found in cartilage and bone parts. Because of the limitation in detectability of the cartilage part of osteophytes by radiography or conventional magnetic resonance imaging (MRI), the rate...
Purpose: The aim of this study was to assess the role diffusion-weighted imaging (DWI) and conventional magnetic resonance (MRI) in differentiation benign malignant orbital lesions. 
 Materials Methods: 43 patients (27 women 16 men; mean age: 26.3±28.5) with lesions were assessed MRI DWI. apparent diffusion coefficient (ADC) measured, maximum ADC (ADCmax), (ADCmean), minimum (ADCmin), rati...
BACKGROUND Flow quantification in real time by phase-contrast MRI (PC-MRI) may provide unique hemodynamic information in congenital heart disease, but available techniques have important limitations. We sought to validate a novel real-time magnetic resonance flow sequence in children. METHODS AND RESULTS In 14 pediatric patients (mean age 5.2+/-2.0 years) with cardiac left-to-right shunt, pul...
Diffusion tensor imaging (DTI) has become the predominant modality for studying white matter integrity in multiple sclerosis (MS) and other neurological disorders. Unfortunately, the use of DTI-based biomarkers in large multi-center studies is hindered by systematic biases that confound the study of disease-related changes. Furthermore, the site-to-site variability in multi-center studies is si...
Background Inhalative administration of oxygen increases pulmonary blood flow by vasodilation. Currently, flow rate quantification using conventional two-dimensional phase-contrast MRI (PC-MRI) is not capable to study short-term effects due to averaging of flow information. The aim of this study was to examine the impact of oxygen supply on respiration-related flow rate variations by non-electr...
the effect of poss instruction in comparison with conventional instruction on development of esp learners’ parts of speech knowledge and attitude toward call.
استئوآرتریت (oa) بیان کننده اختلالات پاتولوژیک استحاله ای در برگیرنده مفصل و ساختارهای آن می باشد. تشخیص oa سالها به دلیل طبیعت خاموش و پیشرونده بیماری موضوع بحث بوده است. مطالعه حاضر جهت ایجاد oa تجربی در مفصل زانوی خرگوش، و سپس مطالعه روند تغییرات رادیوگرافی، mri و هیستوپاتولوژی در شرایط یکسان طراحی گردید تا هریک از روشهای تشخیصی در ارتباط با سایر روشها و همچنین در قیاس با روش هیستوپاتولوژی ب...
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