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Chinese Journal of Interventional Radiology(Electronic Edition) ›› 2024, Vol. 12 ›› Issue (03): 234-243. doi: 10.3877/cma.j.issn.2095-5782.2024.03.008

• Imaging Diagnose • Previous Articles    

Diagnostic value of magnetic resonance DWI and ADC in breast ductal carcinoma in situ with axillary lymph node metastasis

Chao Jiang1,(), Xudong Xia1, Gongxia Wang1, Xiangyu He1, Haibin Wang1, Yuan Li1   

  1. 1. Department of Imaging, Anyang Cancer Hospital, Henan Anyang 455000, China
  • Received:2023-12-22 Online:2024-08-25 Published:2024-09-09
  • Contact: Chao Jiang

Abstract:

Objective

To investigate the diagnostic value of DWI and ADC in axillary lymph node (ALN) metastasis of breast ductal carcinoma in situ (DCIS) with micro-invasion (Mi).

Method

A total of 120 female patients who underwent conventional magnetic resonance imaging (MRI) scan, DWI and postoperative pathological results of DCIS-Mi in Anyang Cancer Hospital of Henan Province from February 2018 to March 2021 were included in the training set. In addition, 51 female DCIS-Mi patients admitted from November 2018 to August 2019 were included in the validation set. According to the results of postoperative pathological diagnosis, the patients in the training set were divided into the positive group (ALN metastasis) and the negative group (no ALN metastasis). In the training set, there were 17 cases in the positive group and 103 cases in the negative group. The patient's general clinical data and the ADC ALN texture feature in the figure were collected and compared between positive group and negative group. LASSO regression and Logistic regression analysis were used to screen the influencing factors. A nomogram model was constructed and evaluated based on the selected influencing factors. The correlation between independent factors and the risk of ALN metastasis in DCIS-Mi patients was analyzed using Spearman correlation analysis.

Result

Variation, skewness, kurtosis, 1%ADC value, 10%ADC value, energy, variance of sum, entropy of sum and entropy were independent factors affecting ALN metastasis in patients with DCIS-Mi (P < 0.05). The 1%ADC value was negatively correlated with the risk of ALN metastasis in DCIS-Mi patients (P < 0.05), while variation, skewness, kurtosis, 10%ADC value, energy, variance of sum, entropy of sum and entropy were positively correlated with the risk of ALN metastasis in DCIS-Mi patients (P < 0.05). The Nomogram model based on independent factors has high specificity, sensitivity and clinical applicability.

Conclusion

The Nomogram model based on ADC texture parameters is effective in predicting ALN metastasis in DCIS-Mi patients.

Key words: DCIS-Mi, Axillary lymph node metastasis, Magnetic resonance imaging, Diffusion weighted imaging, Apparent diffusion coefficient

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