[PDF] Top 20 Evolution of Multiple Sclerosis Lesions on Serial Contrast Enhanced T1 Weighted and Magnetization Transfer MR Images
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Evolution of Multiple Sclerosis Lesions on Serial Contrast Enhanced T1 Weighted and Magnetization Transfer MR Images
... Although T1-weighted hypointensity and decreased MTR probably reflect the same histo- pathologic substrate, and their concomitant use in the analysis of MS plaques may seem redundant, both can be ...with ... See full document
7
T1 weighted three dimensional magnetization transfer MR of the brain: improved lesion contrast enhancement
... metastatic lesions were counted on the T1-weighted spin-echo, the 3-D gradient-echo, and the MT 3-D gradient-echo ...the images from each of these sequences were prepared for each patient’s ... See full document
6
Improved detection of enhancing and nonenhancing lesions of multiple sclerosis with magnetization transfer
... for T1- weighted images with and without magnetization transfer and for precontrast and postcontrast ...images. Lesions were divided into enhancing and nonenhancing ... See full document
8
Contrast enhanced magnetization transfer MR of the brain: importance of precontrast images
... precontrast T1-weighted magnetization transfer (MT) MR images for better interpretation contrast-enhanced T1-weighted MT ...for MR imaging of ... See full document
7
Patterns of lesion development in multiple sclerosis: longitudinal observations with T1 weighted spin echo and magnetization transfer MR
... of enhanced-CR, T1-CR, size, and MTR for appearance on unenhanced T1-weighted images were tested using a multifactorial analysis of variance (ANOVA) model (F is the variance ...of ... See full document
9
Single dose gadolinium with magnetization transfer versus triple dose gadolinium in the MR detection of multiple sclerosis lesions
... of enhanced MR imag- ing, revealing an increase of active exams (dis- sociation in time) and a greater number of en- hancing MS ...in serial monthly treatment trials, in which enhanced ... See full document
7
Magnetization transfer effects on T1 weighted three dimensional gradient echo MR images of a phantom simulating enhancing brain lesions
... the contrast of an already avidly enhancing lesion was not the goal of this ...the contrast for the most faintly enhancing ...lesion-to-background contrast as a function of flip angle for the ... See full document
13
Serial contrast enhanced MR in patients with multiple sclerosis and varying levels of disability
... enhancing lesions was determined by agreement between two experienced observers who were unaware of the disease ...follow-up images, enhancing lesions were defined as new at their first ap- pearance ... See full document
8
Multiple sclerosis lesions: relationship between MR enhancement pattern and magnetization transfer effect
... pathophysiologic evolution of mul- tiple sclerosis lesions is still unknown, ...with serial contrast-enhanced and T2-weighted imaging studies at short intervals has shown ... See full document
9
The evolution of multiple sclerosis lesions on serial MR
... and contrast- enhanced images, a majority of lesions were centrally hyperintense at early time points and subsequently changed pattern of appearance in the course of ...density– ... See full document
11
Characterization of multiple sclerosis plaques with T1 weighted MR and quantitative magnetization transfer
... with MR spectros- copy also tend to support conclusions regarding a pathologic substrate obtained in the present ...enhancing lesions have demonstrated increases in lactate, the choline-to-creatine ratio, ... See full document
7
Enhanced and unenhanced MR with magnetization transfer in multiple sclerosis
... of multiple sclerosis (MS) is judged on magnetic resonance (MR) images by plaque enhancement after intravenous injection of contrast material (1, ...Delayed MR imaging and ... See full document
6
Magnetization transfer effects in MR detected multiple sclerosis lesions: comparison with gadolinium enhanced spin echo images and nonenhanced T1 weighted images
... vivo MR imaging or magnetization transfer im- aging (9, ...tion transfer is complex and not completely un- ...energy transfer to the free water protons and the greater the signal loss ... See full document
12
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 ...noncontrast T1-weighted (560/14/2) CSE images with and without the MT pulse; and two ... See full document
5
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 ... See full document
6
Comparison of Ultrasmall Particles of Iron Oxide (USPIO) Enhanced T2 Weighted, Conventional T2 Weighted, and Gadolinium Enhanced T1 Weighted MR Images in Rats with Experimental Autoimmune Encephalomyelitis
... on MR im- ages was established by comparing histologic sections with each of the nine MR sections of each ...compared MR images with histologic ... See full document
5
Intracranial Meningeal Disease: Comparison of Contrast Enhanced MR Imaging with Fluid Attenuated Inversion Recovery and Fat Suppressed T1 Weighted Sequences
... enhancement. Contrast-enhanced T1-weighted imaging with FS was judged superior in quality to contrast-enhanced FLAIR imaging in both types of meningeal enhancement in most cases ... See full document
7
Serial Follow up MR Imaging after Gamma Knife Radiosurgery for Vestibular Schwannoma
... Serial MR studies of unilateral vestibular schwannomas treated with gamma knife radiosur- gery showed that temporary enlargement of tumor occurred in 41% of ...of contrast enhancement after gamma ... See full document
7
Detection of Corticospinal Tract Compromise in Amyotrophic Lateral Sclerosis with Brain MR Imaging: Relevance of the T1 Weighted Spin Echo Magnetization Transfer Contrast Sequence
... density–weighted images in healthy sub- ...FLAIR images because they observed CST hyperin- tensity in both patients with ALS and control ...FLAIR images obtained in healthy persons and showed ... See full document
7
Effect of multislice interference on image contrast in T2 and T1 weighted MR images
... Unfortunately, the acquisition of contiguous slices in multislice MR imaging can lead to substantial degradation of image contrast and Signal due to interslice interference, particularly[r] ... See full document
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