The application value of 3.0T MR DTI technique in 3D reconstruction of the knee peripheral nerve
10.3969/j.issn.1002-1671.2018.12.035
- VernacularTitle:3.0T MR扩散张量成像对膝部神经三维重建的应用
- Author:
Fulong ZHANG
1
;
Shengquan LIU
;
Chengxin YAN
;
Xiaofang HU
;
Yue ZHANG
;
Jianzhong ZHU
Author Information
1. 泰山医学院附属医院医学影像科
- Keywords:
diffusion tensor imaging;
three-dimensional reconstruction;
peripheral nerve
- From:
Journal of Practical Radiology
2018;34(12):1953-1955,1969
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the application value of 3.0T MR diffusion tensor imaging (DTI)in 3D reconstruction of the knee peripheral nerve.Methods DTI with 25 motion probing gradients (MPGs)was performed on the left knee in 22 healthy young volunteers;By choosing the original images scaned in the vertical direction,three post-processing methods including maximum intensity proj ection (MIP),volume rendering (VR)and diffusion tensor tractography (DTT)were used.Two radiologists evaluated these images visually.For the same nerve,MIP,VR and DTT were compared using Friedman test.Intraclass correlation coefficient (ICC )analysis was used to compare the correlation among the three imaging methods.Score consistency between two observers was calculated by using the Kappa statistic.Results For the same nerve,there was no significant statistical difference for the MIP,VR and DTT imaging quality scores(P>0.05).The I CC value and the k value were 0.718-0.856,0.668-0.705,respectively.Conclusion Stereoscopic and clear displaying the tibial nerve/the common peroneal nerve in the knee can be achieved by using MIP,VR and DTT post-processing methods based on DTI original images.The reconstruction of MIP,VR is simple and efficient,in which the objectivity is better than DTT.The reconstruction of MIP,VR can be used as effective preview methods before the DTT reconstruction with complexity and strong subjective dependence.
