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Training a CNN with pseudo ground truth for CT metal artifact reduction
RPI ID: 2018-021-201 / 2018-021-601Innovation Summary:This invention introduces a method for training convolutional neural networks (CNNs) to reduce artifacts in CT images using pseudo ground truth data. The system includes an estimated ground truth generator that produces reference images from artifact-laden scans, enabling the CNN to learn artifact...
Published: 7/21/2025
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Updated: 7/3/2025
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Inventor(s): Ge Wang, Lars Gjesteby, Hongming Shan
Keywords(s): Biomedical Engineering, machine-learning, medical imaging
Category(s): Computational Science and Engineering
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Deep learning for metal artifact reduction in computed tomography images
RPI ID: 2018-008-401, 2018-008-601Innovation Summary:This invention from Rensselaer Polytechnic Institute introduces a deep learning-based framework for reducing metal artifacts in computed tomography (CT) images. The system leverages a neural network trained on paired CT datasets—with and without metal artifacts—to reconstruct high-fidelity images...
Published: 7/21/2025
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Updated: 7/3/2025
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Inventor(s): Ge Wang, Lars Gjesteby, Qingsong Yang, Hongming Shan
Keywords(s): computed tomography (CT), deep learning, machine-learning, metal artifact reduction
Category(s): Biotechnology and the Life Sciences
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Simultaneous Emission-Transmission Tomography
RPI ID: 2017-028-401Innovation Summary:This invention presents a system for simultaneous emission and transmission imaging in PET/CT scanners. It features a rotating source and detector configuration that enables concurrent acquisition of PET and CT data. This design improves image registration, reduces scan time, and enhances workflow efficiency. The...
Published: 7/21/2025
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Updated: 7/3/2025
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Inventor(s): Ge Wang, Lars Gjesteby, Wenxiang Cong
Keywords(s): Biomedical Engineering, Diagnosis and treatment analysis of diseased tissue, medical imaging
Category(s): Biotechnology and the Life Sciences
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Simultaneous Interior MRI and X-ray Imaging System (MRX)
RPI ID: 2016-022-601 and 2016-022-401
Innovation Summary:
This invention presents a portable hybrid imaging system that combines magnetic resonance imaging (MRI) and X-ray modalities in a single device. The MRX system enables simultaneous acquisition of structural and soft tissue data, improving diagnostic precision. It uses compact electromagnets...
Published: 7/21/2025
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Updated: 7/3/2025
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Inventor(s): Lars Gjesteby, Ge Wang
Keywords(s): Biomedical Engineering, Diagnosis, Imaging, Interior Tomography
Category(s): Biotechnology and the Life Sciences
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