PMID- 20426165 OWN - NLM STAT- MEDLINE DCOM- 20100607 LR - 20190907 VI - 12 IP - Pt 2 DP - 2009 TI - Graph-based pancreatic islet segmentation for early type 2 diabetes mellitus on histopathological tissue. PG - 633-40 AB - It is estimated that in 2010 more than 220 million people will be affected by type 2 diabetes mellitus (T2DM). Early evidence indicates that specific markers for alpha and beta cells in pancreatic islets of Langerhans can be used for early T2DM diagnosis. Currently, the analysis of such histological tissues is manually performed by trained pathologists using a light microscope. To objectify classification results and to reduce the processing time of histological tissues, an automated computational pathology framework for segmentation of pancreatic islets from histopathological fluorescence images is proposed. Due to high variability in the staining intensities for alpha and beta cells, classical medical imaging approaches fail in this scenario. The main contribution of this paper consists of a novel graph-based segmentation approach based on cell nuclei detection with randomized tree ensembles. The algorithm is trained via a cross validation scheme on a ground truth set of islet images manually segmented by 4 expert pathologists. Test errors obtained from the cross validation procedure demonstrate that the graph-based computational pathology analysis proposed is performing competitively to the expert pathologists while outperforming a baseline morphological approach. FAU - Floros, Xenofon AU - Floros X AD - Department of Computer Science, ETH Zurich, Switzerland. xenofon.floros@inf.ethz.ch FAU - Fuchs, Thomas J AU - Fuchs TJ FAU - Rechsteiner, Markus P AU - Rechsteiner MP FAU - Spinas, Giatgen AU - Spinas G FAU - Moch, Holger AU - Moch H FAU - Buhmann, Joachim M AU - Buhmann JM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Germany TA - Med Image Comput Comput Assist Interv JT - Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention JID - 101249582 SB - IM MH - *Algorithms MH - *Artificial Intelligence MH - Diabetes Mellitus, Type 2/*pathology MH - Humans MH - Image Enhancement/methods MH - Image Interpretation, Computer-Assisted/*methods MH - Islets of Langerhans/*pathology MH - Microscopy MH - Pattern Recognition, Automated/*methods MH - Reproducibility of Results MH - Sensitivity and Specificity EDAT- 2009/01/01 00:00 MHDA- 2010/06/09 06:00 CRDT- 2010/04/30 06:00 PHST- 2010/04/30 06:00 [entrez] PHST- 2009/01/01 00:00 [pubmed] PHST- 2010/06/09 06:00 [medline] AID - 10.1007/978-3-642-04271-3_77 [doi] PST - ppublish SO - Med Image Comput Comput Assist Interv. 2009;12(Pt 2):633-40. doi: 10.1007/978-3-642-04271-3_77.