Early Radiation-Induced Temporal Lobe Injury after Radiotherapy for Nasopharyngeal Carcinoma:Features of MR DTI
- VernacularTitle:鼻咽癌放疗后颞叶脑放射性损伤的磁共振扩散张量成像的表现
- Author:
Jiquan ZHAO
;
Biling LIANG
;
Xinjin ZHU
;
Jun SHEN
- Publication Type:Journal Article
- Keywords:
brain;
MR imaging;
diffusion tensor imaging;
nasopharyngeal carcinoma;
radiation brain injury
- From:
Journal of Practical Radiology
1996;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the diagnostic values of diffusion tensor imaging(DTI)in early radiation-induced brain injury of the temporal lobes.Methods Conventional and MR diffusion tensor imaging examinations were performed in 23 patients following radiotherapy for nasopharyngeal carcinoma(NPC)and in 28 age-matched healthy controls.Isotropic apparent diffusion coefficient(ADCiso)and anisotropic index were measured in the white matter on both of the temporal lobes.Results The value of ADCiso,fractional anisotropy(FA),relative anisotropy(RA)and 1 minus volume ratio(1-VR)were(644.08?56.80)?10-6 mm2/s,0.394?0.074,0.344?0.075 and 0.182?0.072 respectively.In comparison with control group,these values were significant decreased(P
