An automated approach to improve efficacy in detecting residual malignant cancer cell for facilitating prognostic assessment of leukemia: an initial study

Yuchen Qiu; Xianglan Lu; Maxine Tan; Shibo Li; Hong Liu; Bin Zheng

doi:10.1117/12.2081658

17 March 2015 An automated approach to improve efficacy in detecting residual malignant cancer cell for facilitating prognostic assessment of leukemia: an initial study

Yuchen Qiu, Xianglan Lu, Maxine Tan, Shibo Li, Hong Liu, Bin Zheng

Author Affiliations +

Proceedings Volume 9420, Medical Imaging 2015: Digital Pathology; 94200X (2015) https://doi.org/10.1117/12.2081658
Event: SPIE Medical Imaging, 2015, Orlando, Florida, United States

Abstract

The purpose of this study is to investigate the feasibility of applying automatic interphase FISH cells analysis method for detecting the residual malignancy of post chemotherapy leukemia patients. In the experiment, two clinical specimens with translocation between chromosome No. 9 and 22 or No. 11 and 14 were selected from the patients underwent leukemia diagnosis and treatment. The entire slide of each specimen was first digitalized by a commercial fluorescent microscope using a 40× objective lens. Then, the scanned images were processed by a computer-aided detecting (CAD) scheme to identify the analyzable FISH cells, which is accomplished by applying a series of features including the region size, Brenner gradient and maximum intensity. For each identified cell, the scheme detected and counted the number of the FISH signal dots inside the nucleus, using the adaptive threshold of the region size and distance of the labeled FISH dots. The results showed that the new CAD scheme detected 8093 and 6675 suspicious regions of interest (ROI) in two specimens, among which 4546 and 3807 ROI contain analyzable interphase FISH cell. In these analyzable ROIs, CAD selected 334 and 405 residual malignant cancer cells, which is substantially more than those visually detected in a cytogenetic laboratory of our medical center (334 vs. 122, 405 vs. 160). This investigation indicates that an automatic interphase FISH cell scanning and CAD method has the potential to improve the accuracy and efficiency of the prognostic assessment for leukemia and other genetic related cancer patients in the future.

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Yuchen Qiu, Xianglan Lu, Maxine Tan, Shibo Li, Hong Liu, and Bin Zheng "An automated approach to improve efficacy in detecting residual malignant cancer cell for facilitating prognostic assessment of leukemia: an initial study", Proc. SPIE 9420, Medical Imaging 2015: Digital Pathology, 94200X (17 March 2015); https://doi.org/10.1117/12.2081658

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KEYWORDS

Cancer

Leukemia

Computer aided design

Objectives

Computer aided diagnosis and therapy

Visualization

Signal detection

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