A study on the Ultra-Wideband (UWB) microwave imaging for detecting the malignant tumor in the human breast is presented. The planer two-dimensional breast model is used to simulate the microwave propagation in the br...
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A study on the Ultra-Wideband (UWB) microwave imaging for detecting the malignant tumor in the human breast is presented. The planer two-dimensional breast model is used to simulate the microwave propagation in the breast by the Finite Difference Time Domain method (FDTD). The confocal algorithm is employed to reconstruct the breast image to show the tumor information involving its size and the location. The influence of the tumor location on the image resolution is investigated in detail. A 6 mm tumor could be detected even when it is located nearby the chest wall. Results show that the UWB imaging is a non-invaded feasible method for the breast cancer detection.
Ultrawide band (UWB) microwave imaging is a promising method for early-stage breast cancer detection based on the large contrast of electric parameters between the tumor and the normal breast tissue. The tumor can be ...
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Ultrawide band (UWB) microwave imaging is a promising method for early-stage breast cancer detection based on the large contrast of electric parameters between the tumor and the normal breast tissue. The tumor can be detected by analyzing the reflection and scattering behavior of the UWB microwave propagating in the breast. In this study, the tumor location is determined by comparing the waveforms resulted from the tumor-containing and tumor-free breasts. The frequency dispersive characteristics of the fatty breast tissue, skin and tumor are considered in the study to approach the actual electrical properties of the breast. The correct location and size are visualized for an early-stage tumor embedded in the breast using the principle of a confocal microwave imaging technique.
Microwave imaging is a promising method for the early-stage breast cancer detection based on the large contrast of electric parameters between the tumor and the normal breast tissue. The tumor information can be obtai...
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ISBN:
(纸本)9781424410446
Microwave imaging is a promising method for the early-stage breast cancer detection based on the large contrast of electric parameters between the tumor and the normal breast tissue. The tumor information can be obtained by comparing the ultra wideband signals propagating in the tumor-contained breast and tumor-free breast which used as the calibration waveform. In this study, a method of extracting calibration waveform during detection is proposed, in which the tumor is arranged randomly located in the breast tissue. The feasibility of this method in the actual detection is explained. The correct tumor information in the reconstructed breast image is achieved by using the extracted calibration waveform.
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