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In this study, a computerized scheme for reconstructing three dimension (3D)-ultrasonography (US) of a breast mass using off-line B-mode two dimension (2D) dynamic US images obtained by conventional 2D equipment was developed. Two off-line 2D dynamic US images were obtained with two orthogonal directions for each mass. The z axis of reconstructed 3D-US of a breast mass was estimated by using a length of the mass on the orthogonal image. In order to verify whether the 3D-US reproduces the real form of a breast mass, the correlation between two image features (volume and effective diameter of a mass), which were calculated from 3D-US, and visual assessment reported by physicians were evaluated. For seventy-nine breast masses used in this study, estimated mass volumes obtained from 3D-US had a high correlation (R=0.925) with those obtained from diagnostic reports. In conclusion, it was suggested that our computerized scheme could reproduce the 3D form of breast masses with relatively small errors.

Development of the Computerized Scheme for Reconstructing Three Dimensions Ultrasonography from the Conventional Two Dimensions Dynamic Images