Fig. 4From: Texture analysis of iodine maps and conventional images for k-nearest neighbor classification of benign and metastatic lung nodulesExamples of benign nodules as shown in conventional images (CI; left column), iodine maps (IM; second column from the left) and entropy texture maps derived from CI and IM (right columns). It is revealed that some benign and metastatic nodules may be clearly distinguished by means of their iodine uptake (top row vs bottom row) while some benign nodules show comparable iodine concentration values as metastases (second vs third row), hampering accurate differentiationBack to article page