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40 results on '"del Toro, Óscar"'

1. Assessing radiomics feature stability with simulated CT acquisitions

Author

Flouris, Kyriakos, Jimenez-del-Toro, Oscar, Aberle, Christoph, Bach, Michael, Schaer, Roger, Obmann, Markus, Stieltjes, Bram, Mueller, Henning, Depeursinge, Adrien, and Konukoglu, Ender

Subjects
Physics - Computational Physics, Physics - Medical Physics
Abstract

Medical imaging quantitative features had once disputable usefulness in clinical studies. Nowadays, advancements in analysis techniques, for instance through machine learning, have enabled quantitative features to be progressively useful in diagnosis and research. Tissue characterisation is improved via the 'radiomics' features, whose extraction can be automated. Despite the advances, stability of quantitative features remains an important open problem. As features can be highly sensitive to variations of acquisition details, it is not trivial to quantify stability and efficiently select stable features. In this work, we develop and validate a Computed Tomography (CT) simulator environment based on the publicly available ASTRA toolbox (www.astra-toolbox.com). We show that the variability, stability and discriminative power of the radiomics features extracted from the virtual phantom images generated by the simulator are similar to those observed in a tandem phantom study. Additionally, we show that the variability is matched between a multi-center phantom study and simulated results. Consequently, we demonstrate that the simulator can be utilised to assess radiomics features' stability and discriminative power.

Published
2022
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3. Studying Public Medical Images from the Open Access Literature and Social Networks for Model Training and Knowledge Extraction

Author

Müller, Henning, Andrearczyk, Vincent, del Toro, Oscar Jimenez, Dhrangadhariya, Anjani, Schaer, Roger, Atzori, Manfredo, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Ro, Yong Man, editor, Cheng, Wen-Huang, editor, Kim, Junmo, editor, Chu, Wei-Ta, editor, Cui, Peng, editor, Choi, Jung-Woo, editor, Hu, Min-Chun, editor, and De Neve, Wesley, editor

Published
2020
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5. A Graph Model of the Lungs with Morphology-Based Structure for Tuberculosis Type Classification

Author

Dicente Cid, Yashin, Jimenez-del-Toro, Oscar, Poletti, Pierre-Alexandre, Müller, Henning, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Chung, Albert C. S., editor, Gee, James C., editor, Yushkevich, Paul A., editor, and Bao, Siqi, editor

Published
2019
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6. From Local to Global: A Holistic Lung Graph Model

Author

Dicente Cid, Yashin, Jiménez-del-Toro, Oscar, Platon, Alexandra, Müller, Henning, Poletti, Pierre-Alexandre, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Frangi, Alejandro F., editor, Schnabel, Julia A., editor, Davatzikos, Christos, editor, Alberola-López, Carlos, editor, and Fichtinger, Gabor, editor

Published
2018
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7. Deep Multimodal Case–Based Retrieval for Large Histopathology Datasets

Author

Jimenez-del-Toro, Oscar, Otálora, Sebastian, Atzori, Manfredo, Müller, Henning, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Wu, Guorong, editor, Munsell, Brent C., editor, Zhan, Yiqiang, editor, Bai, Wenjia, editor, Sanroma, Gerard, editor, and Coupé, Pierrick, editor

Published
2017
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9. Datasets Created in VISCERAL

Author

Krenn, Markus, Grünberg, Katharina, Jimenez-del-Toro, Oscar, Jakab, András, Salas Fernandez, Tomàs, Winterstein, Marianne, Weber, Marc-André, Langs, Georg, Hanbury, Allan, editor, Müller, Henning, editor, and Langs, Georg, editor

Published
2017
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11. Annotating Medical Image Data

Author

Grünberg, Katharina, Jimenez-del-Toro, Oscar, Jakab, Andras, Langs, Georg, Salas Fernandez, Tomàs, Winterstein, Marianne, Weber, Marc-André, Krenn, Markus, Hanbury, Allan, editor, Müller, Henning, editor, and Langs, Georg, editor

Published
2017
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13. Overview of the First Workshop of Muldimodal Retrieval in the Medical Domain (MRMD 2015)

Author

Müller, Henning, Jiménez–del–Toro, Oscar, Hanbury, Allan, Langs, Georg, Foncubierta–Rodríguez, Antonio, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Müller, Henning, editor, Jimenez del Toro, Oscar Alfonso, editor, Hanbury, Allan, editor, Langs, Georg, editor, and Foncubierta Rodriguez, Antonio, editor

Published
2015
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14. RadLex Terms and Local Texture Features for Multimodal Medical Case Retrieval

Author

Jiménez–del–Toro, Oscar Alfonso, Cirujeda, Pol, Cid, Yashin Dicente, Müller, Henning, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Müller, Henning, editor, Jimenez del Toro, Oscar Alfonso, editor, Hanbury, Allan, editor, Langs, Georg, editor, and Foncubierta Rodriguez, Antonio, editor

Published
2015
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15. Overview of the VISCERAL Retrieval Benchmark 2015

Author

Jiménez–del–Toro, Oscar Alfonso, Hanbury, Allan, Langs, Georg, Foncubierta–Rodríguez, Antonio, Müller, Henning, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Müller, Henning, editor, Jimenez del Toro, Oscar Alfonso, editor, Hanbury, Allan, editor, Langs, Georg, editor, and Foncubierta Rodriguez, Antonio, editor

Published
2015
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16. Creating a Large-Scale Silver Corpus from Multiple Algorithmic Segmentations

Author

Krenn, Markus, Dorfer, Matthias, Jiménez del Toro, Oscar Alfonso, Müller, Henning, Menze, Bjoern, Weber, Marc-André, Hanbury, Allan, Langs, Georg, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Menze, Bjoern, editor, Langs, Georg, editor, Montillo, Albert, editor, Kelm, Michael, editor, Müller, Henning, editor, Zhang, Shaoting, editor, Cai, Weidong, editor, and Metaxas, Dimitris, editor

Published
2016
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17. Workshop Multimodal Retrieval in the Medical Domain (MRMD) 2015

Author

Müller, Henning, del Toro, Oscar Alfonso Jiménez, Hanbury, Allan, Langs, Georg, Foncubierta–Rodríguez, Antonio, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Hanbury, Allan, editor, Kazai, Gabriella, editor, Rauber, Andreas, editor, and Fuhr, Norbert, editor

Published
2015
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18. Hierarchic Multi–atlas Based Segmentation for Anatomical Structures: Evaluation in the VISCERAL Anatomy Benchmarks

Author

Jiménez del Toro, Oscar Alfonso, Müller, Henning, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Menze, Bjoern, editor, Langs, Georg, editor, Montillo, Albert, editor, Kelm, Michael, editor, Müller, Henning, editor, Zhang, Shaoting, editor, Cai, Weidong (Tom), editor, and Metaxas, Dimitris, editor

Published
2014
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19. Using Probability Maps for Multi–organ Automatic Segmentation

Author

Joyseeree, Ranveer, Alfonso Jiménez del Toro, Óscar, Müller, Henning, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Menze, Bjoern, editor, Langs, Georg, editor, Montillo, Albert, editor, Kelm, Michael, editor, Müller, Henning, editor, and Tu, Zhuowen, editor

Published
2014
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20. Multi-structure Atlas-Based Segmentation Using Anatomical Regions of Interest

Author

Jiménez del Toro, Óscar Alfonso, Müller, Henning, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Menze, Bjoern, editor, Langs, Georg, editor, Montillo, Albert, editor, Kelm, Michael, editor, Müller, Henning, editor, and Tu, Zhuowen, editor

Published
2014
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21. Overview of the 2013 Workshop on Medical Computer Vision (MCV 2013)

Author

Müller, Henning, Menze, Bjoern H., Langs, Georg, Montillo, Albert, Kelm, B. Michael, Tu, Zhuowen, del Toro, Óscar Alfonso Jiménez, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Menze, Bjoern, editor, Langs, Georg, editor, Montillo, Albert, editor, Kelm, Michael, editor, Müller, Henning, editor, and Tu, Zhuowen, editor

Published
2014
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22. Epileptogenic Lesion Quantification in MRI Using Contralateral 3D Texture Comparisons

Author

Jiménez del Toro, Oscar Alfonso, Foncubierta–Rodríguez, Antonio, Vargas Gómez, María Isabel, Müller, Henning, Depeursinge, Adrien, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Mori, Kensaku, editor, Sakuma, Ichiro, editor, Sato, Yoshinobu, editor, Barillot, Christian, editor, and Navab, Nassir, editor

Published
2013
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28. Processing Diabetes Mellitus Composite Events in MAGPIE

Author

Brugués, Albert, primary, Bromuri, Stefano, additional, Barry, Michael, additional, del Toro, Óscar Jiménez, additional, Mazurkiewicz, Maciej R., additional, Kardas, Przemyslaw, additional, Pegueroles, Josep, additional, and Schumacher, Michael, additional

Published
2015
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29. Rewriting Natural Language Queries Using Patterns

Author

Soualmia, Lina F., Lelong, Romain, Dahamna, Badisse, Darmoni, Stéfan J., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Müller, Henning, editor, Jimenez del Toro, Oscar Alfonso, editor, Hanbury, Allan, editor, Langs, Georg, editor, and Foncubierta Rodriguez, Antonio, editor

Published
2015
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30. The Application of KAZE Features to the Classification Echocardiogram Videos

Author

Li, Wei, Qian, Yu, Loomes, Martin, Gao, Xiaohong, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Müller, Henning, editor, Jimenez del Toro, Oscar Alfonso, editor, Hanbury, Allan, editor, Langs, Georg, editor, and Foncubierta Rodriguez, Antonio, editor

Published
2015
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31. USYD/HES-SO in the VISCERAL Retrieval Benchmark

Author

Zhang, Fan, Song, Yang, Cai, Weidong, Depeursinge, Adrien, Müller, Henning, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Müller, Henning, editor, Jimenez del Toro, Oscar Alfonso, editor, Hanbury, Allan, editor, Langs, Georg, editor, and Foncubierta Rodriguez, Antonio, editor

Published
2015
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32. Medical Case-Based Retrieval of Patient Records Using the RadLex Hierarchical Lexicon

Author

Spanier, Assaf B., Joskowicz, Leo, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Müller, Henning, editor, Jimenez del Toro, Oscar Alfonso, editor, Hanbury, Allan, editor, Langs, Georg, editor, and Foncubierta Rodriguez, Antonio, editor

Published
2015
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33. Multimodal Medical Case-Based Retrieval on the Radiology Image and Report: SNUMedinfo at VISCERAL Retrieval Benchmark

Author

Choi, Sungbin, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Müller, Henning, editor, Jimenez del Toro, Oscar Alfonso, editor, Hanbury, Allan, editor, Langs, Georg, editor, and Foncubierta Rodriguez, Antonio, editor

Published
2015
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34. Multi-modal Indexing and Retrieval Using an LSA-Based Kernel

Author

Stathopoulos, Spyridon, Kalamboukis, Theodore, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Müller, Henning, editor, Jimenez del Toro, Oscar Alfonso, editor, Hanbury, Allan, editor, Langs, Georg, editor, and Foncubierta Rodriguez, Antonio, editor

Published
2015
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35. Semi–supervised Learning for Image Modality Classification

Author

García Seco de Herrera, Alba, Markonis, Dimitrios, Joyseeree, Ranveer, Schaer, Roger, Foncubierta-Rodríguez, Antonio, Müller, Henning, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Müller, Henning, editor, Jimenez del Toro, Oscar Alfonso, editor, Hanbury, Allan, editor, Langs, Georg, editor, and Foncubierta Rodriguez, Antonio, editor

Published
2015
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36. Content-Based Retrieval of Brain Diffusion Magnetic Resonance Image

Author

Liu, Siqi, Hadi, Nur, Liu, Sidong, Pujol, Sonia, Kikinis, Ron, Zhang, Fan, Feng, Dagan, Cai, Weidong, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Müller, Henning, editor, Jimenez del Toro, Oscar Alfonso, editor, Hanbury, Allan, editor, Langs, Georg, editor, and Foncubierta Rodriguez, Antonio, editor

Published
2015
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37. BioASQ: A Challenge on Large-Scale Biomedical Semantic Indexing and Question Answering

Author

Balikas, Georgios, Krithara, Anastasia, Partalas, Ioannis, Paliouras, George, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Müller, Henning, editor, Jimenez del Toro, Oscar Alfonso, editor, Hanbury, Allan, editor, Langs, Georg, editor, and Foncubierta Rodriguez, Antonio, editor

Published
2015
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38. Annotation of Chest Radiology Reports for Indexing and Retrieval

Author

Demner-Fushman, Dina, Shooshan, Sonya E., Rodriguez, Laritza, Antani, Sameer, Thoma, George R., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Müller, Henning, editor, Jimenez del Toro, Oscar Alfonso, editor, Hanbury, Allan, editor, Langs, Georg, editor, and Foncubierta Rodriguez, Antonio, editor

Published
2015
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39. Semantic Retrieval of Radiological Images with Relevance Feedback

Author

Kurtz, Camille, Idoux, Paul-André, Thangali, Avinash, Cloppet, Florence, Beaulieu, Christopher F., Rubin, Daniel L., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Müller, Henning, editor, Jimenez del Toro, Oscar Alfonso, editor, Hanbury, Allan, editor, Langs, Georg, editor, and Foncubierta Rodriguez, Antonio, editor

Published
2015
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40. Benefits of texture analysis of dual energy CT for Computer-Aided pulmonary embolism detection.

Author

Foncubierta-Rodríguez A, Jiménez del Toro ÓA, Platon A, Poletti PA, Müller H, and Depeursinge A

Subjects
Algorithms, Humans, Lung diagnostic imaging, Radiographic Image Interpretation, Computer-Assisted, Tomography, X-Ray Computed methods, Wavelet Analysis, Pulmonary Embolism diagnostic imaging
Abstract

Pulmonary embolism is an avoidable cause of death if treated immediately but delays in diagnosis and treatment lead to an increased risk. Computer-assisted image analysis of both unenhanced and contrast-enhanced computed tomography (CT) have proven useful for diagnosis of pulmonary embolism. Dual energy CT provides additional information over the standard single energy scan by generating four-dimensional (4D) data, in our case with 11 energy levels in 3D. In this paper a 4D texture analysis method capable of detecting pulmonary embolism in dual energy CT is presented. The method uses wavelet-based visual words together with an automatic geodesic-based region of interest detection algorithm to characterize the texture properties of each lung lobe. Results show an increase in performance with respect to the single energy CT analysis, as well as an accuracy gain compared to preliminary work on a small dataset.

Published
2013
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