临床扫描仪上的半傅里叶快速成像。

Half-Fourier BURST imaging on a clinical scanner.

作者信息

Jakob P M, Griswold M A, Lovblad K O, Chen Q, Edelman R R

机构信息

Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA.

出版信息

Magn Reson Med. 1997 Oct;38(4):534-40. doi: 10.1002/mrm.1910380405.

DOI:10.1002/mrm.1910380405

PMID:9324318

Abstract

A modified BURST imaging technique with a nearly twofold reduction in acquisition time, improved signal-to-noise ratio and clear improvement of the image quality is introduced. The method applies half-Fourier reconstruction and can be implemented on a standard clinical scanner. This approach allows the collection of single-shot magnetization prepared images of the human brain with a matrix size of 112 x 128 within 86-250 ms. The signal-to-noise properties of the pulse sequence are analyzed and compared with a standard BURST experiment.

摘要

介绍了一种改进的BURST成像技术，其采集时间缩短近两倍，信噪比提高，图像质量明显改善。该方法采用半傅里叶重建，可在标准临床扫描仪上实现。这种方法能够在86 - 250毫秒内采集矩阵大小为112×128的人脑单次激发磁化准备图像。分析了该脉冲序列的信噪比特性，并与标准BURST实验进行了比较。