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IFN-γ is a T-helper 1 cytokine and plays important roles in modulating almost all the immune responses, such as hematopoiesis, T-cell differentiation, antiproliferative, antiviral, and antitumor activities. A single nucleotide polymorphism (+874A/T) which is located in the first intron of the human IFN-γ gene can putatively influence the secretion of IFN-γ. Results from previous studies on the association...
This study proposes a set of novel feature vectors for accurate differentiation of 3 typical types of liver space-occupying lesions in ultrasound images. Experiments were performed on 280 cases of liver images, including 112 cases of normal liver images, 90 cases of liver cancer images, 38 cases of liver hemangioma images and 40 cases of liver cyst images. First, we defined two types of region of...
Background Characteristics of glucose metabolism disorders (GMDs) in different cancers and the contributory role of GMDs in developing cancers are still not so clear. Methods Two thousand four hundred and five patients with malignancy who had been hospitalized in the First Affiliated Hospital of Jinan University were pooled as case group. Two thousand and sixteen non-cancer people who finished health...
A computerized classification of breast tumor based on B-mode ultrasound and color Doppler flow imaging is proposed. First, the boundary of the breast tumor was manually delineated. Second, five contour features and two gray level features of the tumors were extracted from the B-mode ultrasonic images. Third, an optimal feature vector was created using K-means cluster algorithm. Then a back propagation...
Breast cancer is one of the most common cancer in women. A novel method is presented in this paper for classification of the breast tumors as benign or malignant. The method combines k-means classification and a multilayer perception network with error back-propagation (BP) algorithm. The k-means which is an unsupervised classification method is used to get the cluster centers and select the training...
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