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Geoffrey D Rubin

Adjunct Professor in the Department of Radiology
Radiology
2424 Erwin Road, Suite 301, Duke Mail Box 2702, Durham, NC 27705
2424 Erwin Road, Durham, NC 27705

Scholarly Works - Conferences


STAMP: Selective Task-Aware Mechanism for Text Privacy

Conference Eacl 2026 19th Conference of the European Chapter of the Association for Computational Linguistics Proceedings of the Conference Vol 1 Long Papers · January 1, 2026 We present STAMP (Selective Task-Aware Mechanism for Text Privacy), a new framework for task-aware text privatization that achieves an improved privacy–utility trade-off. STAMP selectively allocates privacy budgets across tokens by jointly considering (i) ... Full text Cite

Multi-disease Classification of CT Reports using Traditional Natural Language Processing and a Lightweight Foundation Model

Conference Progress in Biomedical Optics and Imaging Proceedings of SPIE · January 1, 2025 Natural language processing (NLP) methods can annotate free-text radiology reports to create large datasets at the scale of an entire health system or beyond. Generalizing the disease classification across multiple organ systems inherently requires a compl ... Full text Cite

Co-occurring diseases heavily influence the performance of weakly supervised learning models for classification of chest CT

Conference Progress in Biomedical Optics and Imaging Proceedings of SPIE · January 1, 2022 Despite the potential of weakly supervised learning to automatically annotate massive amounts of data, little is known about its limitations for use in computer-aided diagnosis (CAD). For CT specifically, interpreting the performance of CAD algorithms can ... Full text Cite

Weakly supervised 3D classification of chest CT using aggregated multi-resolution deep segmentation features

Conference Progress in Biomedical Optics and Imaging Proceedings of SPIE · January 1, 2020 Weakly supervised disease classification of CT imaging suffers from poor localization owing to case-level annotations, where even a positive scan can hold hundreds to thousands of negative slices along multiple planes. Furthermore, although deep learning s ... Full text Cite

Attention-guided classification of abnormalities in semi-structured computed tomography reports

Conference Progress in Biomedical Optics and Imaging Proceedings of SPIE · January 1, 2020 Lack of annotated data is a major challenge to machine learning algorithms, particularly in the field of radiology. Algorithms that can efficiently extract labels in a fast and precise manner are in high demand. Weak supervision is a compromise solution, p ... Full text Cite

Combining deep learning methods and human knowledge to identify abnormalities in computed tomography (CT) reports

Conference Progress in Biomedical Optics and Imaging Proceedings of SPIE · January 1, 2019 Many researchers in the field of machine learning have addressed the problem of detecting anomalies within Computed Tomography (CT) scans. Training these machine learning algorithms requires a dataset of CT scans with identified anomalies (labels), usually ... Full text Cite

2.5D CNN model for detecting lung disease using weak supervision

Conference Progress in Biomedical Optics and Imaging Proceedings of SPIE · January 1, 2019 Our goal is to develop a 2.5D CNN model to detect multiple diseases in multiple organs in CT scans. In this study we investigated detection of 4 common diseases in the lungs, which are atelectasis, edema, pneumonia and nodule. Most existing algorithms for ... Full text Cite

Classifying abnormalities in computed tomography radiology reports with rule-based and natural language processing models

Conference Progress in Biomedical Optics and Imaging Proceedings of SPIE · January 1, 2019 Purpose: When conducting machine learning algorithms on classification and detection of abnormalities for medical imaging, many researchers are faced with the problem that it is hard to get enough labeled data. This is especially difficult for modalities s ... Full text Cite

Classification of chest CT using case-level weak supervision

Conference Progress in Biomedical Optics and Imaging Proceedings of SPIE · January 1, 2019 Our goal is to investigate using only case-level labels extracted automatically from radiology reports to construct a multi-disease classifier for CT scans with deep learning method. We chose four lung diseases as a start: atelectasis, pulmonary edema, nod ... Full text Cite

Deep learning of 3D computed tomography (CT) images for organ segmentation using 2D multi-channel SegNet model

Conference Progress in Biomedical Optics and Imaging Proceedings of SPIE · January 1, 2019 Purpose To accurately segment organs from 3D CT image volumes using a 2D, multi-channel SegNet model consisting of a deep Convolutional Neural Network (CNN) encoder-decoder architecture. Method We trained a SegNet model on the extended cardiac-Torso (XCAT) ... Full text Cite

Development of local complexity metrics to quantify the effect of anatomical noise on detectability of lung nodules in chest CT imaging

Conference Progress in Biomedical Optics and Imaging Proceedings of SPIE · January 1, 2017 The purpose of this study was to develop metrics of local anatomical complexity and compare them with detectability of lung nodules in CT. Data were drawn retrospectively from a published perception experiment in which detectability was assessed in cases e ... Full text Cite

Quantification of the uncertainty in coronary CTA plaque measurements using dynamic cardiac phantom and 3D-printed plaque models

Conference Progress in Biomedical Optics and Imaging Proceedings of SPIE · January 1, 2017 The purpose of this study was to quantify the accuracy of coronary computed tomography angiography (CTA) stenosis measurements using newly developed physical coronary plaque models attached to a base dynamic cardiac phantom (Shelley Medical DHP-01). Corona ... Full text Cite

WE-D-16A-01: ACR Radiology Leadership Institute

Conference Medical Physics · June 2014 Full text Cite

Outcomes of Intracranial Aneurysms Monitored by CT Angiography

Conference AMERICAN JOURNAL OF ROENTGENOLOGY · May 1, 2010 Link to item Cite

Flattening the abdominal aortic tree for effective visualization

Conference 2006 28TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-15 · January 1, 2006 Link to item Cite

Multidetector-row CT angiography (MDCTA) for aortoiliac occlusion

Conference AMERICAN JOURNAL OF ROENTGENOLOGY · January 1, 2005 Link to item Cite

Equipment considerations for body CT

Conference RADIOLOGY · November 1, 1996 Link to item Cite

MR VIRTUAL ARTHROSCOPY

Conference RADIOLOGY · November 1, 1995 Link to item Cite

Volumetric applications for Spiral CT in the thorax

Conference Proceedings of SPIE the International Society for Optical Engineering · May 1, 1994 Spiral computed tomography (CT) is a new technique for rapidly acquiring volumetric data within the body. By combining a continuous gantry rotation and table feed, it is possible to image the entire thorax within a single breath-hold. This eliminates the v ... Full text Cite