Method and apparatus for postprocessing medical images

Image analysis – Applications – Biomedical applications

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382171, 382173, 36441313, G06K 900

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active

055090842

ABSTRACT:
A method and apparatus are specialized in utilizing a two dimensional histogram for designating a ROI including accurate functional information of a lesion in tissues. A pair of medical images imaged at an identical position of a patient under different imaging conditions is provided by an image providing element. Each of the images extends two-dimensionally and consists of a plurality of pixels. A two-dimensional histogram is calculated by a histogram calculating element and displayed by a histogram displaying element. The histogram projects a function between pixel intensities of the images and frequencies of the pixel intensities. A desired region is then designated by a region designating element on the histogram displayed. Finally, pixels of the plural images equal in pixel intensities to pixels composing the desired designated region are specified by a pixel specifying element as a finally designated ROI.

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IEEE Transactions on Medical Imaging, vol. MI-6, No. 4, Dec. 1987, pp. 370-373, Andreas Herrmann, et al., "Oscillating Intensity Display of Soft Tissue Lesions in MRI".
Radiology, vol. 169, Dec. 1988, pp. 779-785, Michael Just, et al, "Tissue Characterization with T1, T2, and Proton Density Values: Results in 160 Patients with Brain Tumors".

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