Research on the influence of functional magnetic resonance imaging parameter to the quality of image in brain area
10.3969/J.ISSN.1672-8270.2014.03.010
- VernacularTitle:脑区功能性MRI成像参数的选择对图像质量影响的研究
- Author:
Jian LI
;
Yongshou ZHANG
;
Lihua ZHAO
- Publication Type:Journal Article
- Keywords:
Brain functional;
The MRI parameter;
Image quality
- From:
China Medical Equipment
2014;(3):29-30,31
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To discuss the effect of the choice of brain functional MRI parameter on image quality. Methods:To select nine young volunteers for scanning brain functional MRI from February to December, 2012, and analyze the effect caused by parameters to the image quality. Results:The lower of the b value, the more level 1 image, the less level 3 image;the more of the number of diffusion sensitive gradient direction, the more level 1 image, the less level 3 image. The largest impact on image quality is the interlayer spacing, the number of diffusion sensitive gradient direction and the b value. Conclusion:The factors influencing the quality of brain functional MRI images including the interlayer spacing, the number of diffusion sensitive gradient direction and b value. In the parameter selection process, one should start from diagnostic purposes and weigh the pros and cons with overall consideration.
