Title
Prostate cancer region prediction using MALDI mass spectra
Abstract
For the early detection of prostate cancer, the analysis of the Prostate-specific antigen (PSA) in serum is currently the most popular approach. However, previous studies show that 15% of men have prostate cancer even their PSA concentrations are low. MALDI Mass Spectrometry (MS) proves to be a better technology to discover molecular tools for early cancer detection. The molecular tools or peptides are termed as biomarkers. Using MALDI MS data from prostate tissue samples, prostate cancer biomarkers can be identified by searching for molecular or molecular combination that can differentiate cancer tissue regions from normal ones. Cancer tissue regions are usually identified by pathologists after examining H&E stained histological microscopy images. Unfortunately, histopathological examination is currently done on an adjacent slice because the H&E staining process will change tissue's protein structure and it will derogate MALDI analysis if the same tissue is used, while the MALDI imaging process will destroy the tissue slice so that it is no longer available for histopathological exam. For this reason, only the most confident cancer region resulting from the histopathological examination on an adjacent slice will be used to guide the biomarker identification. It is obvious that a better cancer boundary delimitation on the MALDI imaging slice would be beneficial. In this paper, we proposed methods to predict the true cancer boundary, using the MALDI MS data, from the most confident cancer region given by pathologists on an adjacent slice.
Year
DOI
Venue
2010
10.1117/12.844494
Proceedings of SPIE
Keywords
Field
DocType
Prostate cancer,Biomarker,Imaging biomarker,MALDI
Early detection,Early Cancer Detection,Imaging biomarker,Biomarker (medicine),Prostate cancer,Artificial intelligence,MALDI imaging,Pathology,Computer vision,Prostate,Bioinformatics,Cancer,Physics
Conference
Volume
ISSN
Citations 
7624
0277-786X
0
PageRank 
References 
Authors
0.34
0
9
Name
Order
Citations
PageRank
Ayyappa Vadlamudi121.12
Shao-Hui Chuang262.28
Xiaoyan Sun3154.26
Lisa Cazares4202.36
julius o nyalwidhe510.75
Dean Troyer631.53
John O. Semmes7555.05
jiang li8239.88
Frederic D Mckenzie97518.51