Computer-Interactive Methods of Brain Cortical Evaluation

The subject of the paper is the evaluation of a brain atrophy depending on computed tomography (CT) images. There are two computer aided methods under investigation. The first one is a semi-automatic volumetric method, the second is a fully automatic one and depends on the fractal dimension. Results of the experiment with 68 patients show that both methods are able to estimate the brain atrophy very similarly to the evaluation made by expert radiologist with the coefficient of correlation in the range of 0.7-0.9. The great advantage of the automatic method comparing to volumetric method is generating results in a very short time, that counts in ordinary clinical practice and could be used to experiment with huge patient groups.