Correcting for Frequency Drift in Clinical Brain MR Spectroscopy

Rowland Benjamin C.; Liao Huijun; Adan Fatah; Mariano Laura; Irvine John; Lin Alexander P.

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Correcting for Frequency Drift in Clinical Brain MR Spectroscopy

机译：校正临床脑MR光谱中的频率漂移

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PURPOSE: Averaging multiple repetitions to improve signal-to-noise ratio is common practice in magnetic resonance spectroscopy (MRS). However, temporal variations in scanner B0 due to motion or gradient heating may cause spectra to become misaligned, broadening and distorting peaks and impacting on processing and quantification. We present a comparison using in vivo data of different methods for correcting these errors.

机译：目的：平均多次重复以提高信噪比是磁共振波谱（MRS）中的常见做法。然而，由于运动或梯度加热，扫描仪B0中的时间变化可能会导致光谱错位、峰变宽和扭曲，并影响处理和量化。我们使用不同方法的体内数据进行了比较，以纠正这些错误。

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来源
《Journal of neuroimaging》 |2017年第1期|共6页
作者
Rowland Benjamin C.; Liao Huijun; Adan Fatah; Mariano Laura; Irvine John; Lin Alexander P.;
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作者单位

Brigham &

Womens Hosp Dept Radiol Ctr Clin Spect 4 Blackfan Circle HIM 8-817 Boston MA 02115;

Brigham &

Womens Hosp Dept Radiol Ctr Clin Spect 4 Blackfan Circle HIM 8-817 Boston MA 02115;

Brigham &

Womens Hosp Dept Radiol Ctr Clin Spect 4 Blackfan Circle HIM 8-817 Boston MA 02115;

Draper Lab Cambridge MA USA;

Draper Lab Cambridge MA USA;

Brigham &

Womens Hosp Dept Radiol Ctr Clin Spect 4 Blackfan Circle HIM 8-817 Boston MA 02115;

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原文格式 PDF
正文语种 eng
中图分类影像诊断学;
关键词
1H; spectroscopy; MRS; frequency correction; spectral registration; signal processing;

机译：1H;光谱学;夫人频率校正;光谱配准;信号处理;

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Correcting for Frequency Drift in Clinical Brain MR Spectroscopy

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