302. Fundamental study of Turbo spin echo method
نویسندگان
چکیده
منابع مشابه
Refocused Turbo Spin Echo for Noncontrast MRA
Introduction There is increasing interest in non-contrast MRA methods because of the risk of NSF in patients with kidney disease [1]. RARE-type sequences are capable of generating contrast between blood and surrounding tissue based on T2 differences, but conventional RARE sequences have a non-zero first moment at the RF pulses and at odd echoes, and are therefore susceptible to flow-related art...
متن کاملTurbo spin-echo diffusion-weighted MR of ischemic stroke.
PURPOSE Our objective was to determine whether a multisection technique, diffusion-weighted half-Fourier single-shot turbo spin-echo (HASTE) imaging, can compensate for the drawbacks common to other diffusion-weighted techniques; specifically, the need for echo-planar technology and the presence of susceptibility artifacts in areas close to the skull base. METHODS Forty subjects who were refe...
متن کاملTurbo Spin Echo Bloch Siegert Shift B1 Mapping
An interesting method for B1 mapping based on the Bloch-Siegert (BLS) shift was recently presented (1,2) for gradient echo (FLASH) and Spin Echo (SE) sequences. This method uses off-resonant pulses before signal acquisition to encode the B1 information into the signal phase. Fast B1 mapping is possible since the repetition time has only minor influence on the quality of the phase information. I...
متن کاملRARE/turbo spin echo imaging with Simultaneous Multislice Wave-CAIPI.
PURPOSE To enable highly accelerated RARE/Turbo Spin Echo (TSE) imaging using Simultaneous MultiSlice (SMS) Wave-CAIPI acquisition with reduced g-factor penalty. METHODS SMS Wave-CAIPI incurs slice shifts across simultaneously excited slices while playing sinusoidal gradient waveforms during the readout of each encoding line. This results in an efficient k-space coverage that spreads aliasing...
متن کاملNoncontrast MRA using Spiral Refocused Turbo Spin Echo
Introduction: Flow-independent angiography is a type of noncontrast-enhanced imaging that relies on the NMR properties of tissue, rather than flow, to generate contrast. RARE-type sequences are capable of generating contrast between blood and surrounding tissue based on T2 differences, but conventional RARE sequences have a non-zero first moment at the RF pulses and at odd echoes, and are there...
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ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 1993
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.kj00003324889