Obtaining previous mammograms for comparison.
نویسندگان
چکیده
منابع مشابه
Structural Comparison of Mammograms
This paper presents a robust algorithm for the comparison of mammogram pairs. Salient regions are extracted in a topographic way. An integral invariant representation of shape, in combination with area and distance measures, are used for establishing their correspondences. The experimental results demonstrate that the algorithm can provide a useful tool for a ComputerAided Diagnosis system in m...
متن کاملContrast Enhancement of Mammograms for Rapid Detection of Microcalcification Clusters
Introduction Breast cancer is one of the most common types of cancer among women. Early detection of breast cancer is the key to reducing the associated mortality rate. The presence of microcalcifications clusters (MCCs) is one of the earliest signs of breast cancer. Due to poor imaging contrast of mammograms and noise contamination, radiologists may overlook some diagnostic signs, specially t...
متن کاملComputer-aided detection system for clustered microcalcifications: comparison of performance on full-field digital mammograms and digitized screen-film mammograms.
We have developed a computer-aided detection (CAD) system to detect clustered microcalcifications automatically on full-field digital mammograms (FFDMs) and a CAD system for screen-film mammograms (SFMs). The two systems used the same computer vision algorithms but their false positive (FP) classifiers were trained separately with sample images of each modality. In this study, we compared the p...
متن کاملComparison of two-dimensional synthesized mammograms versus original digital mammograms alone and in combination with tomosynthesis images.
PURPOSE To assess interpretation performance and radiation dose when two-dimensional synthesized mammography (SM) images versus standard full-field digital mammography (FFDM) images are used alone or in combination with digital breast tomosynthesis images. MATERIALS AND METHODS A fully crossed, mode-balanced multicase (n = 123), multireader (n = 8), retrospective observer performance study wa...
متن کاملA Method for Obtaining
An encryption method is presented with the novel property that publicly revealing an encryption key does not thereby reveal the corresponding decryption key. This has two important consequences: 1. Couriers or other secure means are not needed to transmit keys, since a message can be enciphered using an encryption key publicly revealed by the intended recipient. Only he can decipher the message...
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ژورنال
عنوان ژورنال: American Journal of Roentgenology
سال: 1996
ISSN: 0361-803X,1546-3141
DOI: 10.2214/ajr.166.4.8610588