Abstract
We present a paradigm for empirical evaluation of digital image enhancement algorithms for mammography that uses psychophysical methods for implementation and analysis of a clinically relevant detection task. In the experiment, the observer is asked to detect and assign to a quadrant, or indicate the absence of, a simulated mammographic structure characteristic of cancer embedded in a background image of normal breast tissue. Responses are indicated interactively on a computer workstation. The parameter values for the enhancement applied to the composite image may be varied on each trial, and structure detection performance is estimated for each enhancement condition. Preliminary investigations have provided insight into an appropriate viewing duration, and furthermore, suggest that nonradiologists may be used under this methodology for the tasks investigated thus far, for predicting parameter values for clinical investigation. We are presently using this method in evaluating several contrast enhancement algorithms of possible benefit in mammography. These methods enable an objective, clinically relevant evaluation, for the purpose of optimal parameter determination or performance assessment, of digital image-processing methods potentially used in mammography.
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Supported by National Institutes of Health Grants No. PO1-CA47982 and RO1-CA60193-01.
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Puff, D.T., Pisano, E.D., Muller, K.E. et al. A method for determination of optimal image enhancement for the detection of mammographic abnormalities. J Digit Imaging 7, 161–171 (1994). https://doi.org/10.1007/BF03168534
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DOI: https://doi.org/10.1007/BF03168534