METHOD AND APPARATUS FOR EXTRACTION AND QUANTIFICATION OF HEMATOMA FROM A BRAIN SCAN SUCH AS COMPUTED TOMOGRAPHY DATA
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United States of America Patent
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Issued Date -
Jul 23, 2015
app pub date -
Jan 21, 2014
filing date -
Jan 21, 2014
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Abstract
A method is proposed for processing a CT brain scan to identify hematoma and extract data quantifying it. The method uses anatomical, pathological and imaging knowledge comprising (i) distribution data obtained from population studies and characterizing typical intensity distributions of one or more different types of material present in brains, one of the types of material being hematoma, (ii) at least one spatial template describing the spatial layout of a brain. Based on these, the method defines a respective volume of interest for each of a number of ventricles, and extracts data characterizing hematoma in the volume(s) of interest, which need not be hematoma within the ventricles. The distribution data describes typical intensity distributions of hematoma (clots), grey matter (GM), white matter (WM) and cerebrospinal fluid (CSF), and may be in Hounsfield Units (HU).
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