half Fourier single shot turbo spin echo(HASTE)法における空間的ボケについて

概要

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Half-fourier single-shot turbo spin echo (HASTE) sequences have recently been used in magnetic resonance cholangiopancreatography (MRCP) and brain T_2 dynamic MR imaging. However, no report has addressed the spatial blurring found in HASTE sequences. Therefore, phantom experiments were cerried out with HASTE sequences, and the relationships between spatial blurring and the number of data, and spatial blurring and T_2 values were examined by performing modulation transfer function (MTF) measurements. MTF values increased as the number of data increased, and decreased with decreasing T_2 values. These results indicate that spatial blurring depends on the number of data and the T_2 value. These experimental results provided quantitative evidence that spatial blurring depends on the number of data and the T_2 values in the HASTE sequence.
社団法人日本放射線技術学会の論文
1998-07-20