Histological analysis of lung tumor tissue features Yi Yin1,2, Irène Vignon-Clementel1,2, Dirk Drasdo1,2, Oliver Sedlaczek3, Kai Breuhahn3, Arne Warth3, Benedikt Müller3, Peter Schirmacher3, Johannes Lotz4, Janine Olesch4 1. INRIA Paris-Rocquencourt, Le Chesney, France 2. Sorbonne Universités, Paris 6, Laboratoire Jacques-Louis Lions, Paris, France 3. University Hospital Heidelberg, Germany 4. Mevis Lübeck, Germany Project: LungSys II, funded by BMBF (Federal Ministry of Education and Research, Germany) 2015-06-23 Outline • About the lung cancer – Lung cancer – Histological classification • Lung histological features analysis – – – – Material: NSCLC tumor, pathology processing Cell detection Correlation between cell density and DWI MRI Vessel reconstruction • Conclusion Lung cancer Mortality rate for lung cancer New cases world-wide 2012 – 1.8 million [1] Death rate world-wide 2012 – 1.59 million [1] Europe - highest incidence rate with 53.5 death per 100,000 inhabitants [1] Costs for lung cancer treatment – 18.8 billion € [2] [1] World Cancer Report, Edited by Bernard Stewart and Christopher P. Wild, ISBN 978-92-832-0429-9 [2] FERNANDEZ, R.L., et al. Economic burden of cancer Gross the European Union: a population based cost analysis. The Lancet Oncology. 2013, Vol. 14, Iss. 12, pp. 1164-1174. ISSN 1470-2045. Lung cancer Lung cancers are classified based on histological type[3]. small-cell lung carcinoma (SCLC) non-small-cell lung carcinoma (NSCLC) Lung Carcinoid Tumor Non Small Cell Lung Cancer Adenocarcinoma 40% Squamous Cell Carcinoma 25-30% Large-Cell Carcinoma 10-15% Lung cancer histology provides a basis for diagnosis and therapy [3] Lu, C; Onn A, Vaporciyan AA et al. (2010). "78: Cancer of the Lung". Holland-Frei Cancer Medicine (8th ed.). People's Medical Publishing House. NSCLC tumor histological image B Müller / K Breuhahn / A Warth / O Sedlaczek Priori clinical and radiological indications Pathology processing Cutting and staining Scanning Hamamatsu NanoZoomer Lung cancer: staining strategy Cancer cell Inflamatory cells fibroblast stroma Blood vessel KL1 stain: cancer cell CD146 stain: blood vessel anti-CD146/MCAM (polyclonal, Atlas Antibodies, Stockholm, Sweden), and an anti-pan cytokeratin antibody (clone KL1, Abcam, Cambridge, UK). Nuclei detection: image processing Sub-image Detected nuclei Color deconvolution Original image Hematoxylin channel KL1 channel Segmentation result Initial nuclei seed points Mask image Initial seed points detection Nuclei segmentation and classification Different tumor tissues Squamous cell carcinoma Adenocarcinoma #/mm2 Cell density Cancer cell Non-cancer cell Squamous cell carcinoma 4400 2700 1700 Adenocarcinoma 2900 1600 1300 Cell density quantitative analysis 6000 5000 4000 3000 2000 1000 0 1 10 19 28 37 46 55 64 73 82 91 100 109 118 127 136 145 Cell number / mm2 Cell density Index of slices Tumor block 4500 4000 3500 3000 2500 2000 1500 1000 500 0 num_t num_nt 1 8 15 22 29 36 43 50 57 64 71 78 85 92 99 106 Serial slices of tumor block • Magnification: 20X • Resolution: 0.456µm • Size: 2.1 mm*2.1mm Cell number/𝐦𝐦𝟐 Cancer and non-cancer cells Index of slice necrosis DWI MRI tumor Normal lung tissue Tumor block Central necrosis (acellular) Tumor tissue surrounding central necrosis Normal lung tissue Tumor invading in pericardial fat D - value Signal intensity on DWI MRI reflects the water molecules diffusion in tissue Diffusion coefficient (D-value) is estimated by using software MITK-diffusion 0.006 How to predict the micro information? Cell density? 0.004 0.002 0 1 3 5 7 9 11 13 15 17 19 Index of pixel D-values of pixels along the tumor center line Cell density v.s Diffusion DWI MRI diffusion estimation: O Sedlaczek cut DWI - MRI Tumor slice Tumor blocks Correlation between DWI and cell density 6000 Cell Number / mm 2 5500 5000 L2 4500 L4 4000 Negative correlation L1 3500 3000 2500 L5 2000 1500 1.3 1.4 1.5 1.6 1.7 D - values (10 1.8 -3 1.9 2 mm / s) 2 2.1 2.2 Vessel detection Registration: J.s Lotz / J.Olesch Resolution: 1.821µm Magnification : ~=5X Size: 4.5 * 4.5 mm2 Original image Big vessel diameter: ~=30pixel *1.821 ~= 55µm Binary result: 2D vessel cross-sections Conclusion • Quantitative analysis of lung histological tumor tissue features – Cancer and non-cancer cells segmentation – Blood vessel detection and segmentation • Study of correlation between DWI MRI and histology – Diffusion coefficient estimation – Cell density calculation of tumor blocks Thank you for your attention Any Questions?
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