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Ultrasound computer tomography is an emerging medical imaging modality with promising capabilities for breast cancer screening. It allows studying several acoustical properties of the tissues. The transmission modality of USCT provides maps of the speed of sound and the acoustic attenuation of the tissues. The mentioned properties offer high resolution and excellent contrast tissue representation...
This work describes preliminary results of a two-modality imaging system aimed at the early detection of breast cancer. The first technique is based on compounding conventional echographic images taken at regular angular intervals around the imaged breast. The other modality obtains tomographic images of propagation velocity using the same circular geometry. For this study, a low-cost prototype has...
This work describes an automated system based on a ring transducer aimed to the early detection of breast cancer. Such equipment allows compounding multiple sector echographic images acquired at angular intervals around the breast in a water bath. A theoretical analysis of the resolution of this kind of image is presented. First, the impulse response (Point Spread Function) in any point of the imaged...
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