Histogram analysis of apparent diffusion coefficient at 3.0T:correlation with different subtypes of invasive ductal carcinoma
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    Abstract:

    Objective:To investigate multiple apparent diffusion coefficient(ADC)histogram parameters that show correlations with different subtypes of invasive ductal carcinoma. Materials and Methods:From March 2014 to March 2016,a total of 182 invasive ductal carcinomas were included in this retrospective study. Various ADC histogram parameters were calculated including the entire tumor volume:the ADCmin,ADC10,ADCmean,ADCmedian,ADC90,ADCmax,skewness and kurtosis. The ADC multiple parameters of the histogram were calculated through Firevoxel software. The normality and homoscedasticity of imaging measures were tested using the Levene’s tests. Data satisfying the assumption were subjected to ANOVA and independent-sample t test. Conversely,data not satisfying the assumption were analyzed by using the Kruskal-Wallis test and Mann-Whitney U test. The correlation between ADC parameters with different subtypes of invasive ductal carcinoma were analyzed. Results:For most ADC parameters except for ADCmin,the mean of variable ADC parameters of HER-2 positivity,Luminal A,triple-negative,and Luminal B diseases were arranged in descending order(e.g. 1.501×10-3,1.401×10-3,1.330×10-3,1.223×10-3 mm2/s in ADC90,respectively)with statistical significant difference(P=0.019,0.035,< 0.001,respectively). Conclusion:Various ADC parameters were correlated with prognostic factors and subtype,except for ADCmin. HER-2 positivity showed high ADC values than other subgroups.

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刘鸿利,位 寒,邹启桂,王思奇,娄鉴娟,蒋燕妮.3.0T MRI扩散加权成像表观扩散系数直方图与乳腺浸润性导管癌分子亚型的相关性研究[J].南京医科大学学报(自然科学版英文版),2018,(2):211-216.

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  • Received:July 19,2017
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  • Online: March 02,2018
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