Quiet imaging with interleaved spiral read-out

被引：19

作者：

Oesterle, C ^{[1
]}

Hennel, F

Hennig, J

机构：

[1] Univ Hosp Freiburg, Sect Med Phys, Dept Radiol, Freiburg, Germany

[2] Ctr Hosp Rouffach, FORENAP, Rouffach, France

来源：

MAGNETIC RESONANCE IMAGING | 2001年 / 19卷 / 10期

关键词：

MRI; acoustic noise reduction; spiral imaging;

D O I：

10.1016/S0730-725X(01)00458-1

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

The acoustic noise generated during an MRI sequence can be effectively reduced with the help of soft gradient pulses using sinusoidal ramps. The long slope duration, however, leads to long acquisition times. The use of interleaved spiral trajectories, calculated with long gradient slopes, is proposed to reduce the acquisition time while maintaining low acoustic noise levels. The practibility of this approach is demonstrated on phantom and volunteer images. (C) 2001 Elsevier Science Inc. All rights reserved.

引用

页码：1333 / 1337

页数：5

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