Quantitative Estimation of Tumor Volume on Computer Assisted Tomography

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Abstract
With the use of computer assisted tomography (CAT), the volume of intracranial hemorrhages can be calculated. The present work outlines a method that, based on EMI scan printouts, makes possible a calculation of the volume of hemorrhages, tumors or other pathological changes detectable on CAT with a high degree of accuracy, even when the pathological changes are irregular in shape. There were divergences between the estimations of volume of meningiomas using this method and the measure of the volume of enucleated meningiomas within the range of 0-5%. An example of such a human meningioma, and the calculation of its volume, is presented.