Diffusion kurtosis imaging combined with intravoxel incoherent motion imaging global histogram parameters to predict the efficacy of neoadjuvant chemotherapy for breast invasive ductal carcinoma
10.3969/j.issn.1002-1671.2024.10.012
- VernacularTitle:扩散峰度成像联合体素内不相干运动成像全域直方图参数预测乳腺浸润性导管癌新辅助化疗的疗效
- Author:
Xianglong CHEN
1
;
Fangsheng MOU
;
Zhiming XIE
;
Yu QIN
;
Hong YANG
;
Wenbing ZENG
Author Information
1. 川北医学院医学影像学院,四川 南充 637100
- Keywords:
breast;
invasive ductal carcinoma;
neoadjuvant chemotherapy;
diffusion kurtosis imaging;
intravoxel incoherent motion;
histogram parameters
- From:
Journal of Practical Radiology
2024;40(10):1630-1635
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the prediction of diffusion kurtosis imaging(DKI)and intra voxel incoherent motion(IVIM)imaging global histogram parameters for the efficacy of neoadjuvant chemotherapy(NAC)in patients diagnosed with breast invasive ductal carcinoma.Methods A total of 69 patients with breast invasive ductal carcinoma confirmed by penetration pathology were retrospectively selected.Prior to undergoing NAC,all patients underwent sequential scans including MR conventional(T1WI,T2WI),dynamic contrast enhancement(DCE),DKI,and IVIM.After surgery,the patients were divided into significant group(40 patients)and non-significant group(29 patients)based on the efficacy of NAC,which was evaluated using the Miller-Payne(MP)grading method criteria.The differences in global histogram parameters of DKI[mean diffusivity(MD),mean kurtosis(MK)]and IVIM(D value,f value,D*value)between the significant group and the non-significant group were compared by the two-independent sample t-test and Mann-Whitney U test.In addition,the receiver operating characteristic(ROC)curve was plotted,and Spearman rank correlation analysis was used to evaluate the diagnostic efficacy and correlation of DKI and IVIM global histogram parameters in predicting NAC efficacy.The DeLong test was used to compare whether there was statistical significance in area under the curve(AUC)differences among histogram parameters.Results The DKI MD value(90th percentile,mean,median,maximum,range,root mean square),IVIM D value(mean,range,root mean square,median)and D*value(entropy,90th percentile)of patients with breast invasive ductal carcinoma in the significant group with efficacy of NAC were higher than those in the non-significant group,while the DKI MK value(mean and median)were lower than those in the non-significant group,and all the differences mentioned above were statistically significant(P＜0.05).The AUC,sensitivity and specificity of DKI combined with IVIM global histogram parameters were the highest,which were 0.816,72.41％and 90.00％,respectively.MD value,D value and D*value were negatively correlated with the efficacy of NAC in breast invasive ductal carcinoma.MK value was positively correlated with NAC efficacy significance.Conclusion DKI combined with IVIM global histogram parameters can effectively predict the efficacy of NAC in patients with breast invasive ductal carcinoma and provide effective value for clinical NAC preoperative efficacy evaluation.
