Feasibility of anomaly detection and characterization using trans-admittance mammography with 60 × 60 electrode array
| العنوان: | Feasibility of anomaly detection and characterization using trans-admittance mammography with 60 × 60 electrode array |
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| المؤلفون: | Mingkang Zhao, Hun Wi, Eunjung Lee, Eung Je Woo, Tong In Oh |
| المصدر: | Physics in Medicine and Biology. 59:5831-5847 |
| بيانات النشر: | IOP Publishing, 2014. |
| سنة النشر: | 2014 |
| مصطلحات موضوعية: | Pathology, medicine.medical_specialty, Admittance, Breast Neoplasms, Breast cancer, Position (vector), Electric Impedance, medicine, Electrode array, Animals, Humans, Mammography, Radiology, Nuclear Medicine and imaging, Breast, Mammary Glands, Human, skin and connective tissue diseases, Electrodes, Breast Density, Physics, Radiological and Ultrasound Technology, medicine.diagnostic_test, Phantoms, Imaging, medicine.disease, Characterization (materials science), Feasibility Studies, Cattle, Female, Anomaly detection, Anomaly (physics), Algorithms, Biomedical engineering |
| الوصف: | Electrical impedance imaging has the potential to detect an early stage of breast cancer due to higher admittivity values compared with those of normal breast tissues. The tumor size and extent of axillary lymph node involvement are important parameters to evaluate the breast cancer survival rate. Additionally, the anomaly characterization is required to distinguish a malignant tumor from a benign tumor. In order to overcome the limitation of breast cancer detection using impedance measurement probes, we developed the high density trans-admittance mammography (TAM) system with 60 × 60 electrode array and produced trans-admittance maps obtained at several frequency pairs. We applied the anomaly detection algorithm to the high density TAM system for estimating the volume and position of breast tumor. We tested four different sizes of anomaly with three different conductivity contrasts at four different depths. From multifrequency trans-admittance maps, we can readily observe the transversal position and estimate its volume and depth. Specially, the depth estimated values were obtained accurately, which were independent to the size and conductivity contrast when applying the new formula using Laplacian of trans-admittance map. The volume estimation was dependent on the conductivity contrast between anomaly and background in the breast phantom. We characterized two testing anomalies using frequency difference trans-admittance data to eliminate the dependency of anomaly position and size. We confirmed the anomaly detection and characterization algorithm with the high density TAM system on bovine breast tissue. Both results showed the feasibility of detecting the size and position of anomaly and tissue characterization for screening the breast cancer. |
| تدمد: | 1361-6560 0031-9155 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::588d9d10a455c350edaad52038146be5 https://doi.org/10.1088/0031-9155/59/19/5831 |
| رقم الأكسشن: | edsair.doi.dedup.....588d9d10a455c350edaad52038146be5 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13616560 00319155 |
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