منابع مشابه
High speed 3D overhauser-enhanced MRI using combined b-SSFP and compressed sensing.
PURPOSE Overhauser-enhanced MRI is a promising technique for imaging the distribution and dynamics of free radicals. A key challenge for Overhauser-enhanced MRI is attaining high spatial and temporal resolution while simultaneously limiting resonator and sample heating due to the long, high power radio-frequency pulses needed to saturate the electron resonance. METHODS The approach presented ...
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Fig. 3. Comparison of PE schemes in bSSFP CMRA of the right coronary artery. Conspicuity of the distal RCA was good in all three schemes. Fig. 2. Flexible PE schemes with partial Fourier acquisition in the PE (kY) dimension and k-space corners removed from sampling, colorized from red to blue to reflect the sequence of acquisition. Plots of the first and last acquisition trains are shown, refle...
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Velocity imaging with phase contrast (PC) MRI is a noninvasive tool for quantitative blood flow measurement in vivo. A shortcoming of conventional PC imaging is the reduction in temporal resolution as compared to the corresponding magnitude imaging. For the measurement of velocity in a single direction, the temporal resolution is halved because one must acquire two differentially flow-encoded i...
متن کاملFast 2D MRI acquisitions for motion correction in PET-MRI
European Institute for Molecular Imaging, University of Münster, Münster, Germany We performed continuous, fast acquisitions of 2D MR slices covering the thorax under free breathing. In present work, acquired 2D stacks are re-stored using a respiration signal. The usage of 2D slices is similar to the method described in [1]. The proposed method, however, does not include a navigator and acquisi...
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Three-dimensional diffusion-weighted steady-state free precession (3D DW-SSFP) of high-resolution magnetic resonance has emerged as a promising method to visualize the peripheral nerves. In this study, the application value of 3D DW-SSFP brachial plexus imaging in the diagnosis of brachial plexus injury (BPI) was investigated. 33 patients with BPI were prospectively examined using 3D DW-SSFP MR...
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ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 1993
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.kj00003324749