Machine learning radiomics based on intra and peri tumor PA/US images distinguish between luminal and non-luminal tumors in breast cancers

Mo，Sijie1,2; Luo，Hui1,2; Wang，Mengyun1,2; Li，Guoqiu1,2; Kong，Yao1,2; Tian，Hongtian1,2; Wu，Huaiyu1,2; Tang，Shuzhen1,2; Pan，Yinhao4; Wang，Youping5; Xu，Jinfeng1,2; Huang，Zhibin1,2; Dong，Fajin1,2,3

2024-12-01

10.1016/j.pacs.2024.100653

Photoacoustics   影响因子和分区

2213-5979

Purpose: This study aimed to evaluate a radiomics model using Photoacoustic/ultrasound (PA/US) imaging at intra and peri-tumoral area to differentiate Luminal and non-Luminal breast cancer (BC) and to determine the optimal peritumoral area for accurate classification. Materials and methods: From February 2022 to April 2024, this study continuously collected 322 patients at Shenzhen People's Hospital, using standardized conditions for PA/US imaging of BC. Regions of interest were delineated using ITK-SNAP, with peritumoral regions of 2 mm, 4 mm, and 6 mm automatically expanded using code from the Pyradiomic package. Feature extraction was subsequently performed using Pyradiomics. The study employed Z-score normalization, Spearman correlation for feature correlation, and LASSO regression for feature selection, validated through 10-fold cross-validation. The radiomics model integrated intra and peri-tumoral area, evaluated by receiver operating characteristic curve(ROC), Calibration and Decision Curve Analysis(DCA). Results: We extracted and selected features from intratumoral and peritumoral PA/US images regions at 2 mm, 4 mm, and 6 mm. The comprehensive radiomics model, integrating these regions, demonstrated enhanced diagnostic performance, especially the 4 mm model which showed the highest area under the curve(AUC):0.898(0.78–1.00) and comparably high accuracy (0.900) and sensitivity (0.937). This model outperformed the standalone clinical model and combined clinical-radiomics model in distinguishing between Luminal and non-Luminal BC, as evidenced in the test set results. Conclusion: This study developed a radiomics model integrating intratumoral and peritumoral at 4 mm region PA/US model, enhancing the differentiation of Luminal from non-Luminal BC. It demonstrated the diagnostic utility of peritumoral characteristics, reducing the need for invasive biopsies and aiding chemotherapy planning, while emphasizing the importance of optimizing tumor surrounding size for improved model accuracy.

Breast cancer Molecular typing Photoacoustic imaging Radiomics Ultrasound

英语

其他

2-s2.0-85204783266

Scopus

1.Department of Ultrasound,The Second Clinical Medical College,Jinan University,Guangdong,518020,China
2.Department of Ultrasound,Shenzhen People's Hospital,Guangdong,518020,China
3.Department of Ultrasound,The First Affiliated Hospital,Southern University of Science and Technology,Shenzhen,Guangdong,518020,China
4.Mindray Bio-Medical Electronics Co.,Ltd.,ShenZhen,518057,China
5.Department of Clinical and Research,Shenzhen Mindray Bio-medical Electronics Co.,Ltd.,Shenzhen,China

Mo，Sijie,Luo，Hui,Wang，Mengyun,et al. Machine learning radiomics based on intra and peri tumor PA/US images distinguish between luminal and non-luminal tumors in breast cancers[J]. Photoacoustics,2024,40.

Mo，Sijie.,Luo，Hui.,Wang，Mengyun.,Li，Guoqiu.,Kong，Yao.,...&Dong，Fajin.(2024).Machine learning radiomics based on intra and peri tumor PA/US images distinguish between luminal and non-luminal tumors in breast cancers.Photoacoustics,40.

Mo，Sijie,et al."Machine learning radiomics based on intra and peri tumor PA/US images distinguish between luminal and non-luminal tumors in breast cancers".Photoacoustics 40(2024).