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Identification of Triple-negative Breast Cancer and Androgen Receptor Expression Based on Histogram and Texture Analysis of Dynamic Contrast-enhanced MRI

Overview
Journal BMC Med Imaging
Publisher Biomed Central
Specialty Radiology
Date 2023 Jun 1
PMID 37264313
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Abstract

Background: Triple-negative breast cancer (TNBC) is highly malignant and has a poor prognosis due to the lack of effective therapeutic targets. Androgen receptor (AR) has been investigated as a possible therapeutic target. This study quantitatively assessed intratumor heterogeneity by histogram analysis of pharmacokinetic parameters and texture analysis on dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) to discriminate TNBC from non-triple-negative breast cancer (non-TNBC) and to identify AR expression in TNBC.

Methods: This retrospective study included 99 patients with histopathologically proven breast cancer (TNBC: 36, non-TNBC: 63) who underwent breast DCE-MRI before surgery. The pharmacokinetic parameters of DCE-MRI (K, K and V) and their corresponding texture parameters were calculated. The independent t-test, or Mann-Whitney U-test was used to compare quantitative parameters between TNBC and non-TNBC groups, and AR-positive (AR+) and AR-negative (AR-) TNBC groups. The parameters with significant difference between two groups were further involved in logistic regression analysis to build a prediction model for TNBC. The ROC analysis was conducted on each independent parameter and the TNBC predicting model for evaluating the discrimination performance. The area under the ROC curve (AUC), sensitivity and specificity were derived.

Results: The binary logistic regression analysis revealed that K (p = 0.032) and V (p = 0.005) were significantly higher in TNBC than in non-TNBC. The AUC of the combined model for identifying TNBC was 0.735 (p < 0.001) with a cut-off value of 0.268, and its sensitivity and specificity were 88.89% and 52.38%, respectively. The value of K (p = 0.049), K (p = 0.049), and V (p = 0.008) were higher in AR + TNBC group than in AR-TNBC group.

Conclusion: Histogram and texture analysis of breast lesions on DCE-MRI showed potential to identify TNBC, and the specific features can be possible predictors of AR expression, enhancing the ability to individualize the treatment of patients with TNBC.

Citing Articles

Advancements and challenges in triple-negative breast cancer: a comprehensive review of therapeutic and diagnostic strategies.

Xiong N, Wu H, Yu Z Front Oncol. 2024; 14:1405491.

PMID: 38863622 PMC: 11165151. DOI: 10.3389/fonc.2024.1405491.

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