MRI T2 Mapping of the Knee Providing Synthetic Morphologic Images: Comparison to Conventional Turbo Spin-Echo MRI
نویسندگان
چکیده
منابع مشابه
T2-Weighted Liver MRI Using the MultiVane Technique at 3T: Comparison with Conventional T2-Weighted MRI
OBJECTIVE To assess the value of applying MultiVane to liver T2-weighted imaging (T2WI) compared with conventional T2WIs with emphasis on detection of focal liver lesions. MATERIALS AND METHODS Seventy-eight patients (43 men and 35 women) with 86 hepatic lesions and 20 pancreatico-biliary diseases underwent MRI including T2WIs acquired using breath-hold (BH), respiratory-triggered (RT), and M...
متن کاملQuantification of Nonenhancing Tumor Burden in Gliomas Using Effective T2 Maps Derived from Dual-Echo Turbo Spin-Echo MRI.
PURPOSE Evaluation of nonenhancing tumor (NET) burden is an important yet challenging part of brain tumor response assessment. This study focuses on using dual-echo turbo spin-echo MRI as a means of quickly estimating tissue T2, which can be used to objectively define NET burden. EXPERIMENTAL DESIGN A series of experiments were performed to establish the use of T2 maps for defining NET burden...
متن کاملNonlinear Inverse Reconstruction for T2 Mapping from Highly Undersampled Cartesian Spin-Echo MRI
Introduction: Quantitative evaluations of the T2 relaxation time are of high importance for diagnostic MRI. Standard T2 mapping procedures rely on the time-demanding acquisition of several fully-sampled k-space datasets at multiple echo times. Recently, a new method has been proposed which employs a nonlinear inversion of the underlying signal equation to allow for reconstructions of spin-densi...
متن کاملModel-based nonlinear inverse reconstruction for T2 mapping using highly undersampled spin-echo MRI.
PURPOSE To develop a model-based reconstruction technique for T2 mapping based on multi-echo spin-echo MRI sequences with highly undersampled Cartesian data encoding. MATERIALS AND METHODS The proposed technique relies on a nonlinear inverse reconstruction algorithm which directly estimates a T2 and spin-density map from a train of undersampled spin echoes. The method is applicable to acquisi...
متن کاملUnbiased Nonlinear Filtering of Fast Spin Echo MRI Images
Introduction: The design of filtering methods for denoising the magnitude MRI images is traditionally fulfilled assuming that that image noise is zero-mean Gaussian, as Rician properties of magnitude MRI image noise usually complicates a method both algorithmically and computationally [1]. This widely used assumption leads to the biased filtering results, the bias increases as local signal-to-n...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Radiology
سال: 2019
ISSN: 0033-8419,1527-1315
DOI: 10.1148/radiol.2019182843