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The aim of this paper is to study the use of geometric and echo features in classifying masses in ultrasound images as benign or malignant. While mammography is very effective in detecting masses and other lesions, breast ultrasound is a valuable adjunct in distinguishing solid and fluid-filled masses where the former is mostly malignant and the latter benign. Six features including two geometric...
Tumour size is an important prognostic indicator in breast cancer. This is typically measured as a simple linear diameter, although tumour volume may be a better surrogate of tumour burden. We have been optimizing techniques for three-dimensional histopathology based on digital scanning light microscopy of whole-mount, whole-specimen serial sections. We apply this to validate tumour volume measurements...
Temporal comparison is indispensable for mammography reading. In this paper, we propose a new method to perform temporal comparison of digital mammograms using persistence of vision and propose a dense-tissue-preserving registration method for the temporal alignment. In this method, we use non-rigid registration to deform a prior mammogram to align with its corresponding current mammogram. We apply...
Ultrasonography is one of the most important methods for breast cancer diagnosis in Japan. In general, the ultrasonography using conventional handheld probe is operator-dependent, therefore, the quality of imaging depends on the operator technique, and the ultrasound images have less objectivity. Moreover, it is difficult for radiologists to interpret using comparison of left and right breast ultrasound...
An intuitive display method was developed to enable a user to select and visualize corresponding volumes of interest in combined digital breast tomosynthesis (DBT) and automated breast ultrasound images. Details of this method are described including experiments performed to assess the accuracy of the calibration for coordinate transformation. The distance between an object in the ultrasound images...
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