نتایج جستجو برای: magnetic resonance angiography mra
تعداد نتایج: 440373 فیلتر نتایج به سال:
BACKGROUND Renal allograft retrieval from live donors requires an accurate determination of kidney anatomy including the renal arterial supply. Traditionally, conventional angiography has served as the gold standard for obtaining this information. More recently, magnetic resonance angiography (MRA) has been compared with conventional angiography. Although MRA has been shown to be more cost effe...
Digital subtracted angiography (DSA) remains the gold standard for diagnosis of cerebral vascular diseases and provides intraprocedural guidance. This practice involves extensive usage of x-ray and iodinated contrast medium, which can induce side effects. In this study, we examined the accuracy of 3-dimensional (3D) registration of magnetic resonance angiography (MRA) and DSA imaging for cerebr...
AIM To review the published literature comparing the diagnostic accuracy of magnetic resonance angiography (MRA) with and without gadolinium in diagnosing renal artery stenosis, using catheter angiography as reference. MATERIALS AND METHODS A meta-analysis was performed of English language articles identified by computer search using PubMed/MEDLINE, followed by extensive bibliography review f...
Background To assess the feasibility of cardiac magnetic resonance imaging (MRI) and angiography (MRA) at 3.0T in pediatric patients with congenital heart disease (CHD) and to compare the technical and diagnostic performance with an age-matched and clinically comparable control group imaged at 1.5T. Methods Forty-six patients (age 1 day to 8 years, mean 37.2 ± 32.8 months) with suspected or kno...
Fig. 3: (a) Morphometric analysis of cross-sectional areas at various levels relative to the stenosis for MR angiography (top) and histology (bottom) for one representative animal. Correlation of MRA with histology for vessel lumen area (b) and DoS (c). Accelerated high-resolution 3D magnetic resonance angiography using SENSE: fast and accurate assessment of carotid artery stenosis in ApoE ko mice
Vascular compression of the facial nerve is a well recognized cause of hemifacial spasm (HFS). In this study, we described the magnetic resonance imaging (MRI) and three-dimensional magnetic resonance angiography (MRA) techniques used and findings in 34 patients with hemifacial spasm. A vascular abnormality, defined as a vessel seen in close proximity, touching or compressing the facial nerve, ...
The present paper provides general dentists with an introduction to the clinical applications and significance of magnetic resonance angiography (MRA) in the oral and maxillofacial regions. Specifically, the method and characteristics of MRA are first explained using the relevant MR sequences. Next, clinical applications to the oral and maxillofacial regions, such as identification of hemangiom...
Accuracy of Magnetic Resonance Angiography for Internal Carotid Artery Disease To the Editor: We read with great interest the article entitled “Diagnostic accuracy of magnetic resonance angiography for internal carotid artery disease: a systematic review and meta-analysis.”1 The authors made a comprehensive review and meta-analysis of many articles which compared magnetic resonance angiography ...
PURPOSE No precise data are available showing how magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) can be applied to diagnosis for the first attack of a suspected cerebrovascular disease in Korea. The purpose of this study was to evaluate the application level of MRI and MRA as diagnostic tools and the related factors to the use of these techniques. MATERIALS AND METH...
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