[PDF] Top 20 Sensitivity of enhanced MR in multiple sclerosis: effects of contrast dose and magnetization transfer contrast
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Sensitivity of enhanced MR in multiple sclerosis: effects of contrast dose and magnetization transfer contrast
... the MR examination was split into two sessions, separated by an interval of 12 to 24 ...two contrast-enhanced T1-weighted images (with the same acquisition parameters as before contrast ... See full document
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Evaluation of the Sensitivity of Inhomogeneous Magnetization Transfer (ihMT) MRI for Multiple Sclerosis
... volume effects, lesions (indicated by white ar- rows on Fig 2) could be identified on both ihMTR and MTR maps and exhibited hypointensities compared with the surrounding nor- mal-appearing ... See full document
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Serial contrast enhanced MR in patients with multiple sclerosis and varying levels of disability
... high sensitivity of enhanced MR imaging in detecting MS activity, which was found to correlate with both short-term (24) and long- term (25, 35) clinical evolution, has led to the design of clinical ... See full document
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Magnetization transfer effects in MR detected multiple sclerosis lesions: comparison with gadolinium enhanced spin echo images and nonenhanced T1 weighted images
... gadolinium-enhanced MR and magnetization ...images, magnetization transfer images (see below), and 3- to 5-mm contiguous axial postgadolinium T1-weighted images (600 –750/26 – 27/1 ... See full document
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Single dose gadolinium with magnetization transfer versus triple dose gadolinium in the MR detection of multiple sclerosis lesions
... with magnetization transfer contrast (MTC) with that of triple-dose gadolinium in detecting enhancing multiple sclerosis ...with multiple sclerosis were examined ... See full document
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Multiple sclerosis lesions: relationship between MR enhancement pattern and magnetization transfer effect
... tiple sclerosis lesions is still unknown, ...serial contrast-enhanced and T2-weighted imaging studies at short intervals has shown that new lesions enhance initially and may also become reactivated, ... See full document
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Multiple sclerosis of the spinal cord: diagnosis and follow up with contrast enhanced MR and correlation with clinical activity
... determination. MR-derived volume measurements provide greater sensitivity and repro- ducibility ...in MR imaging of the spinal cord, image quality is not always optimal and small lesions may be ... See full document
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Neuroimaging and Cartography: Mapping Brain Tumors
... perfect, contrast-enhanced MR imaging is still very valuable as a diagnostic tool and is far more sensitive than is the clinical examination alone in defining disease activity and predicting progres- ... See full document
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T1 weighted three dimensional magnetization transfer MR of the brain: improved lesion contrast enhancement
... Lesion contrast on three-dimensional gradient- echo contrast-enhanced images was initially reported to be comparable to that on T1-weighted spin-echo images (14, ...or multiple ... See full document
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Enhanced and unenhanced MR with magnetization transfer in multiple sclerosis
... For these reasons, both enhancing and unen- hancing MS plaques are more evident on MT T1-weighted images. The effect of the longer T1 and T2 relaxation times and increased proton density in reducing the MT ratio is not ... See full document
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Evolution of Multiple Sclerosis Lesions on Serial Contrast Enhanced T1 Weighted and Magnetization Transfer MR Images
... of contrast uptake in active inflammatory MS lesions depends on the intensity of the inflam- matory ...In contrast, nodular-enhancing lesions have a lesser degree of inflammatory re- sponse, leading, in ... See full document
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Contrast enhanced magnetization transfer MR of the brain: importance of precontrast images
... and multiple sclerosis), and two were associ- ated with hemorrhage (Fig ...with contrast-enhanced non-MT images and in comparisons of noncon- trast with contrast-enhanced images ... See full document
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Contrast between Scar and Recurrent Herniated Disk on Contrast Enhanced MR Images
... 3). Contrast between disk frag- ment and scar was greater with ionic than with non- ionic medium in animals (2), as it was in our study in ...administered contrast medium ...the contrast medium, the ... See full document
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Correlation of Multiple Sclerosis Measures Derived from T2 Weighted, T1 Weighted, Magnetization Transfer, and Diffusion Tensor MR Imaging
... Histograms of MTR, D ¯ , and FA maps were created as pre- viously described (8, 27, 28), after removal of the extracerebral tissue and of CSF, by using the same technique applied to segment lesions (35). Only the brain ... See full document
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Gasserian ganglion: appearance on contrast enhanced MR
... on contrast- enhanced MR images along the normal facial nerve within the facial canal was probably caused by the flux of contrast material in the lush circumneural arteriovenous plexus that ... See full document
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Accuracy of Contrast Enhanced MR Angiography in Predicting Angiographic Stenosis of the Internal Carotid Artery: Linear Regression Analysis
... between contrast-enhanced MR angiography and digital subtraction angiography, we posit that the rel- evant clinical issue is the predictive accuracy for the individual ...or ... See full document
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Intravenous Infusion of Nitroglycerine Leads to Increased Permeability on Dynamic Contrast Enhanced MR Imaging in Pig Brains
... was followed by an identical prescan sequence, but with a flip angle of 16°. Finally, a dynamic 3D T1 turbo field echo sequence with a TR ⫽ 4 ms, TE ⫽ 1.7 ms; the same voxel size as in the prescans; and 12° flip angles ... See full document
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Diagnosis of cerebral metastases: double dose delayed CT vs contrast enhanced MR imaging
... The results of the present study of patients with equivocal or solitary lesions on DDD-CT indicate that contrast-enhanced MR is substantially more sensitive than DDD-CT for lesion detect[r] ... See full document
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Cortical vein thrombosis in adult patients of cerebral venous sinus thrombosis correlates with poor outcome and brain lesions: a retrospective study
... concomitant CVT. Similarly, seizure and focal neuro- logical deficits were common (67% and 62%, respect- ively) among isolated CVT patients according to a systemic review [4]. However, in contrast to this result ... See full document
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Detection of Corticospinal Tract Compromise in Amyotrophic Lateral Sclerosis with Brain MR Imaging: Relevance of the T1 Weighted Spin Echo Magnetization Transfer Contrast Sequence
... METHODS: We examined 25 patients (14 men, 11 women; mean age, 49.1 years; range, 29 – 68 years) and 21 age- and sex-matched control subjects without upper motor neuron signs. According to the revised El Escorial ... See full document
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