Virasoft Inc. articles

Fluorescence in situ hybridization (FISH) approach is constituted of a pair of complementary techniques for precisely detecting gene amplification and over-expression which are regarded as signs of cancer in patients. Signal detection of FISH whole slides is extremely significant as enables to detect amplification situation. However, nuclei detection and segmentation of FISH slides through microscopic images is tedious and time-consuming for pathologists to evaluate. Furthermore, FISH s

Pathologists conduct a biopsy on a tissue when a carcinoma case for a patient is suspected. They stain the cells on that tissue using some biochemical materials that react with a certain cell element. They put stained cells onto a slide and examine the cells by using an optical microscope device. In our case, we will focus on H&E stained breast tissue samples. Pathologists keep track of a standard process to determine the patient’s condition by focusing on the structures in H&E

Automatic scoring of Ki-67 with digital image analysis would improve the accuracy of the diagnostic. However, automatic Ki-67 assessment is very challenging due to complex variations of cell characteristics. In this paper, we propose an integrated framework for accurate Ki-67 scoring. The main contributions of our method are: a robust cell detection algorithm to detect all tumor and non-tumor cells; a clustering model for computerized classification of tumor and non-tumor cells and subs

Fluorescence in situ hybridization (FISH) is a technique that prepares acceptable results for molecular imaging biomarkers to precisely and dependably detect and diagnose disorders which are sign of cancers. Since contemporary manual FISH signal analysis is low-effective and inconsistent, it is an attractive research area to develop automated FISH image scanning systems and computer-aided diagnosis (CAD) schemes. The gene expression of epidermal growth factor receptors 2 (HER2) is highl

HER2 is recognized as an essential prognostic parameter in breast cancer. Usually interpretation of HER2 negative cases which has no membrane staining or has faint and weak incomplete cells and also positive cases (3+) that consist of strong and complete cell are easy but cells with moderate and weak HER2 staining (2+ or equivocal) require further analysis with fluorescence in situ hybridization (FISH) technique which is expensive and time consuming. In order to minimize the number of e