Rui Teixeira Ribeiro, Ruth English, and Julia Alison Noble
ultrasound imaging, spectral analysis, Medical Image Processing
In this paper, we present a method to estimate the degree of echogenicity for each image subregion across a breast ultrasound scan plane and use that information to generate a parametric image where the visibility of a mass is increased (particularly, increasing the confidence in identifying boundaries). For each image subregion, the frequency spectrum is computed and spectral peak values (SPV) are detected. Next, a partially-clipped quadratic transformation function controlled by statistical descriptors is applied to the spectral peak values and a color-coded parametric image is generated. A 20-case pilot study findings suggest that this type of parametric image adds useful information to the B-mode image for clinical assessment.
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