TY - GEN
T1 - Combining prostate cancer region predictions from MALDI spectra processing and texture analysis
AU - Li, Jiang
AU - Vadlamudi, Ayyappa
AU - Chuang, Shao Hui
AU - Sun, Xiaoyan
AU - Sun, Bo
AU - McKenzie, Frederic D.
AU - Cazares, Lisa
AU - Nyalwidhe, Julius
AU - Troyer, Dean
AU - Semmes, O. John
PY - 2010
Y1 - 2010
N2 - We present a three-step method to predict Prostate cancer (PCa) regions on biopsy tissue samples based on high confidence, low resolution PCa regions marked by a pathologist. First, we apply a texture analysis technique on a high magnification optical image to predict PCa regions on an adjacent tissue slice. Second, we design a prediction model for the same purpose using matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) tissue imaging data from the adjacent slice. Finally, we fuse those two results to obtain the PCa regions that will assist MALDI imaging biomarker identification. Experiment results show that the texture analysis based prediction is sensitive (sen. 87.45%) but not specific (spe. 75%), and the prediction based on the MALDI spectra data is specific (spe. 100%) but less sensitive (sen. 50.98%). By combining those two results, a much better prediction for PCa regions on the adjacent slice can be achieved (sen. 80.39%, spe. 93.09%).
AB - We present a three-step method to predict Prostate cancer (PCa) regions on biopsy tissue samples based on high confidence, low resolution PCa regions marked by a pathologist. First, we apply a texture analysis technique on a high magnification optical image to predict PCa regions on an adjacent tissue slice. Second, we design a prediction model for the same purpose using matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) tissue imaging data from the adjacent slice. Finally, we fuse those two results to obtain the PCa regions that will assist MALDI imaging biomarker identification. Experiment results show that the texture analysis based prediction is sensitive (sen. 87.45%) but not specific (spe. 75%), and the prediction based on the MALDI spectra data is specific (spe. 100%) but less sensitive (sen. 50.98%). By combining those two results, a much better prediction for PCa regions on the adjacent slice can be achieved (sen. 80.39%, spe. 93.09%).
KW - Biomarker identification
KW - Imaging biomarker
KW - MALDI
KW - Prostate cancer
UR - http://www.scopus.com/inward/record.url?scp=77956168214&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77956168214&partnerID=8YFLogxK
U2 - 10.1109/BIBE.2010.20
DO - 10.1109/BIBE.2010.20
M3 - Conference contribution
AN - SCOPUS:77956168214
SN - 9780769540832
T3 - 10th IEEE International Conference on Bioinformatics and Bioengineering 2010, BIBE 2010
SP - 73
EP - 78
BT - 10th IEEE International Conference on Bioinformatics and Bioengineering 2010, BIBE 2010
T2 - 10th IEEE International Conference on Bioinformatics and Bioengineering, BIBE-2010
Y2 - 31 May 2010 through 3 June 2010
ER -