Functional imaging of the brain using computed tomography.

Abstract

Data from rapid-sequence CT [computed tomography] scans of the same cross section, obtained following bolus injection of contrast material, were analyzed by functional imaging in humans. The information contained in a large number of images can be compressed into 1 or 2 gray-scale images which can be evaluated both qualitatively and quantitatively. The computational techniques are described and applied to the generation of images depicting bolus transit time, arrival time, peak time and effective width.