Diagnosis of Breast Cancer Using Radiomics Models Built Based on Dynamic Contrast Enhanced MRI Combined With Mammography
| Autor: | Ritesh Parajuli, Yang Zhang, Jiejie Zhou, Zhongwei Chen, Rita S. Mehta, Freddie J. Combs, Meihao Wang, Min-Ying Su, Youfan Zhao, Kyoung Eun Lee, Jeon-Hor Chen |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Cancer Research diagnosis mammography Oncology and Carcinogenesis Lesion Breast cancer Margin (machine learning) Breast Cancer breast neoplasms medicine magnetic resonance imaging Mammography RC254-282 Cancer Original Research screening and diagnosis medicine.diagnostic_test business.industry Prevention Subtraction Neoplasms. Tumors. Oncology. Including cancer and carcinogens Magnetic resonance imaging medicine.disease 4.1 Discovery and preclinical testing of markers and technologies Detection machine learning Oncology radiomics Maximum intensity projection Dynamic contrast-enhanced MRI Biomedical Imaging Radiology medicine.symptom business |
| Zdroj: | Frontiers in Oncology Frontiers in Oncology, Vol 11 (2021) |
| ISSN: | 2234-943X |
| DOI: | 10.3389/fonc.2021.774248 |
| Popis: | ObjectiveTo build radiomics models using features extracted from DCE-MRI and mammography for diagnosis of breast cancer.Materials and Methods266 patients receiving MRI and mammography, who had well-enhanced lesions on MRI and histologically confirmed diagnosis were analyzed. Training dataset had 146 malignant and 56 benign, and testing dataset had 48 malignant and 18 benign lesions. Fuzzy-C-means clustering algorithm was used to segment the enhanced lesion on subtraction MRI maps. Two radiologists manually outlined the corresponding lesion on mammography by consensus, with the guidance of MRI maximum intensity projection. Features were extracted using PyRadiomics from three DCE-MRI parametric maps, and from the lesion and a 2-cm bandshell margin on mammography. The support vector machine (SVM) was applied for feature selection and model building, using 5 datasets: DCE-MRI, mammography lesion-ROI, mammography margin-ROI, mammography lesion+margin, and all combined.ResultsIn the training dataset evaluated using 10-fold cross-validation, the diagnostic accuracy of the individual model was 83.2% for DCE-MRI, 75.7% for mammography lesion, 64.4% for mammography margin, and 77.2% for lesion+margin. When all features were combined, the accuracy was improved to 89.6%. By adding mammography features to MRI, the specificity was significantly improved from 69.6% (39/56) to 82.1% (46/56), pConclusionThe radiomics model built from the combined MRI and mammography has the potential to provide a machine learning-based diagnostic tool and decrease the false positive diagnosis of contrast-enhanced benign lesions on MRI. |
| Databáze: | OpenAIRE |
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