A comparative study of fluoroscopic triggering method and empirical delay method for Gd-EOB-DTPA dynamic enhanced MRI in the liver
10.3969/j.issn.1002-1671.2018.12.033
- VernacularTitle:肝脏普美显MRI动态增强透视触发法与经验延时法的对比研究
- Author:
Junfeng XU
1
;
Jianbing GE
;
Lei CUI
;
Tianle WANG
;
Jianbing YIN
;
Haitao CHEN
Author Information
1. 南通市第一人民医院影像科
- Keywords:
dynamic enhanced;
fluoroscopic triggering method;
empirical delay method;
magnetic resonance imaging;
liver;
Gd-EOB-DTPA
- From:
Journal of Practical Radiology
2018;34(12):1945-1948
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the effect of fluoroscopic triggering method and empirical delay method on image quality in the liver Gd-EOB-DTPA dynamic enhanced MRI,and to investigate the value of fluoroscopic triggering method in Gd-EOB-DTPA dynamic enhanced MRI.Methods The patients underwent Gd-EOB-DTPA dynamic enhanced MRI were randomly divided into two groups according to the starting modes in the artery phase.Group A used fluoroscopic triggering method and group B used empirical delay method.Eliminating the images with severe respiratory motion artifacts,the quality of the remaining images in 78 cases of group A and 85 cases of group B were assessed in scores (excellent=5 scores;good=4 scores).Data was statistically analyzed with Mann-whitney tests,and P<0.05 was considered statistically significant.Results The excellent rate of the images in group A was 96.15% (75/78).The excellent rate of the images in group B was 67.06% (57/85).There were significant differences between the two groups in the excellent rate (χ2=27.889, P<0.001)and the image quality scores (Z=-4.747,P<0.001).Conclusion For the liver Gd-EOB-DTPA dynamic enhanced MRI, fluoroscopic triggering method is more likely to get better image quality and higher success rate in artery phase than empirical delay method,which indicates that fluoroscopic triggering method have obviously advantages in clinical applications.
