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• Clinical Article •
Cerebrospinal fluid artifacts on 2D and 3D fluid-attnuated inversion-recovery images at 3.0 T MR
QIAN Yin-feng  ZHANG Cheng  WU Jin-ming  BO Ya  YU Yong-qiang 

DOI:10.3969/j.issn.1674-8034.2012.03.005.


[Abstract] Objective: To study cerebrospinal fluid (CSF) artifacts on 2D and 3D fluid-attnuated inversion-recovery (FLAIR) images at 3.0 T MR by comparing with 1.5 T system.Materials and Methods: Fifty individuals were examined with 2D FLAIR images with a 1.5 T system, another fifty cases were examined with 2D and 3D FLAIR images with a 3.0 T system. CSF artifacts within ventricles, suprasellar cistern and prepontine cistern were recorded using a 4-point scale (0=no artifacts, 1=artifacts intensity lower than that of gray matter, 2=artifacts intensity equal to that of gray matter, 3= artifacts intensity higher than that of gray matter), 2 and 3 scales were defined as high grade.Results: On 2D FLAIR images with 1.5 T system, 9 individuals had no CSF artifacts, and there were 94 regions with artifacts in the other 41 cases, among which, 2 scale was the most frequency and occupied 54.3% of all artifacts, and forth ventricle was the most common region. On 2D FLAIR images with 3.0 T system, artifacts were seen at least two regions in every cases, and 3 scale was the most frequency and occupied 50.0%, forth ventricle and prepontine cistern were the most common regions. Compared with 1.5 T system, the ratio of high grade artifacts in ventricle and subarachnoid space was higher on 2D FLAIR images with 3.0 T system. However, there were no artifacts on 3D FLAIR images with 3.0 T system.Conclusion: Compared with 1.5 T system, high grade CSF artifacts are more often on 2D FLAIR images with 3.0 T system, but 3D FLAIR imaging can complete null CSF signal and eliminate CSF artifacts.
[Keywords] Fluid-attenuated inversion-recovery；Cerebrospinal fluid artifact；Subarachnoid space；Magnetic resonance imaging

QIAN Yin-feng Department of Radiology, the First Hospital, Anhui Medical University, Hefei 230022, China

ZHANG Cheng Department of Radiology, the First Hospital, Anhui Medical University, Hefei 230022, China

WU Jin-ming Department of Radiology, the First Hospital, Anhui Medical University, Hefei 230022, China

BO Ya Department of Radiology, the First Hospital, Anhui Medical University, Hefei 230022, China

YU Yong-qiang * Department of Radiology, the First Hospital, Anhui Medical University, Hefei 230022, China

*Correspondence to: Yu YQ,E-mail: shenyx@ustc.edu.cn

Conflicts of interest   None.

Received  2011-12-20
Accepted  2012-01-31
DOI: 10.3969/j.issn.1674-8034.2012.03.005
DOI:10.3969/j.issn.1674-8034.2012.03.005.

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