Evaluation of the effect of radiotherapy and chemotherapy for nasopharyngeal carcinoma with cervical metastatic lymph node by rADC
10.3969/j.issn.1002-1671.2018.02.007
- VernacularTitle:rADC评价鼻咽癌颈部转移性淋巴结放化疗疗效
- Author:
Shuang TANG
1
;
Canjie LIN
;
Zhige PAN
;
Xiaozhi WEN
;
Xia QIN
Author Information
1. 广西科技大学第二附属医院 广西柳州肿瘤医院放射治疗科
- Keywords:
nasopharyngeal carcinoma;
magnetic resonance imaging;
diffusion weighted imaging;
apparent diffusion coefficient
- From:
Journal of Practical Radiology
2018;34(2):191-194
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the index of relative apparent diffusion coefficient (rADC)of magnetic resonance diffusion weighted imaging (DWI)for nasopharyngeal carcinoma with cervical metastatic lymph node before and after treatment,assess the application value of rADC in the recent curative effect after radiotherapy and chemotherapy.Methods 45 cases of nasopharyngeal carcinoma with cervical metastatic lymph nodes proved pathologically were selected as the research objects,which was including 107 pieces of metastatic lymph nodes and underwent DWI.The rADC index of cervical metastatic lymph nodes before and after radiotherapy and chemotherapy was measured and calculated.The cervical metastatic lymph nodes were divided into effective group (CR+PR,n=84)and ineffective group(SD+PD,n=23),and the difference of the rADC index between the two groups was compared.Results For the target volume disappeared or reduced more than 30% in the effective group after treatment,the rADC index was significantly higher than that before treatment(t=4.981, P<0.05).The rADC difference between effective group and ineffective group was statistically significance (t=3.471,P<0.05).Conclusion rADC can be used as the auxiliary marker for the evaluation of short-term curative effect of nasopharyngeal carcinoma with cervical metastatic lymph nodes.
