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专利名称：Apparatus and method for computerized
analysis of interstitial infiltrates in chestimages using artificial neural networks
发明人：Kunio Doi,Takayuki Ishida,Shigehiki
Katsuragwa
申请号：US08/758438申请日：19961129公开号：US05873824A公开日：19990223
摘要：An automated computer-aided diagnosis (CAD) method and system usingartificial neural networks (ANNs) for the quantitative analysis of image data. Threeseparate ANNs were applied for detection of interstitial disease on digitized two-dimensional chest images. The first ANN was trained with horizontal profiles in regions ofinterest (ROIs) selected from normal and abnormal chest radiographs. The second ANNwas trained using vertical output patterns obtained from the 1.sup. st ANN for each ROI.The output value of the 2.sup.nd ANN was used to distinguish between normal andabnormal ROIS with interstitial infiltrates. If the ratio of the number of abnormal ROIs tothe total number of all ROIs in a chest image was greater than a certain threshold level,the chest image was considered abnormal. In addition, the third ANN was applied todistinguish between normal and abnormal chest images where the chest image was notclearly normal or abnormal. The ANN trained with image data learns some statisticalproperties associated with interstitial infiltrates in chest radiographs. In addition, thesame technique can be applied to higher-dimensional data (e.g., three- dimensional data
and four-dimensional data including time-varying three- dimensional data).
申请人：ARCH DEVELOPMENT CORPORATION
代理机构：Oblon, Spivak, McClelland, Maier & Neustadt, P
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