Enhancing recognition of lesions in radiographic images using perceptual feedback

Elizabeth A. Krupinski; Calvin F. Nodine; Harold L. Kundel

doi:10.1117/1.601914

1 March 1998 Enhancing recognition of lesions in radiographic images using perceptual feedback

Elizabeth A. Krupinski, Calvin F. Nodine, Harold L. Kundel

Optical Engineering, Vol. 37, Issue 3, (March 1998). https://doi.org/10.1117/1.601914

When radiologists search a medical x-ray image for an abnormality, their eyes often fixate and refixate the true target, dwelling on it for prolonged times, often without recognizing that they have discovered the object of search. Monitoring the eye position of the radiologist provides the x and y coordinates of the dwelling location. This location can be superimposed on the image and dynamically fed back to the radiologist for reevaluation. When this is done, the probability of recognizing and reporting an abnormality is shown to be enhanced significantly. An increase of 20% in observer performance is observed for radiologists searching chest images for tumors after receiving perceptual feedback compared to a second look without perceptual feedback. The truepositive rate increased and the false-positive rate decreased. Perceptual feedback represents a potentially significant technique for enhancing lesion recognition in radiology.]

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Elizabeth A. Krupinski, Calvin F. Nodine, and Harold L. Kundel "Enhancing recognition of lesions in radiographic images using perceptual feedback," Optical Engineering 37(3), (1 March 1998). https://doi.org/10.1117/1.601914

Published: 1 March 1998

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