F Sommer

Publication Details

  • Lesion contrast enhancement in medical ultrasound imaging IEEE TRANSACTIONS ON MEDICAL IMAGING Stetson, P. F., Sommer, F. G., Macovski, A. 1997; 16 (4): 416-425


    Methods for improving the contrast-to-noise ratio (CNR) of low-contrast lesions in medical ultrasound imaging are described. Differences in the frequency spectra and amplitude distributions of the lesion and its surroundings can be used to increase the CNR of the lesion relative to the background. Automated graylevel mapping is used in combination with a contrast-weighted form of frequency-diversity speckle reduction. In clinical studies, the techniques have yielded mean CNR improvements of 3.2 dB above ordinary frequency-diversity imaging and 5.6 dB over sharper conventional images, with no post-processing graylevel mapping.

    View details for Web of Science ID A1997XP72500006

    View details for PubMedID 9262999

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