Search Results - joseph+stayman

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Software Tools for Tomographic Reconstruction

Value Proposition· Superior Image Quality – the proposed nonlinear DPS method outperforms traditional reconstruction methods and linear DPS models, offering better high-quality images across different acquisition protocols compared to conditionally trained deep learning approaches· State-of-the-Art Reconstruction – cutting-edge implementations...

Published: 3/14/2025 | Inventor(s): Joseph Stayman, Xiao Jiang, Shudong Li, Altea Lorenzon, Peiqing Teng

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Category(s): Technology Classifications > Computers, Electronics & Software > Algorithms, Technology Classifications > Computers, Electronics & Software > Image Processing & Analysis

Parameterized denoising network

Unmet NeedThere exists a wide array of strategies for noise reduction in x-ray computed tomography (CT), most of which provide sufficient efficacy in providing a more optimal output. However, current machine learning approaches are developed to provide a singular output of the best solution. This, however, is limiting as certain applications require...

Published: 3/14/2025 | Inventor(s): Joseph Stayman, Jianan Gang, Jeremias Sulam, Wenying Wang

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Simultaneous Material Decomposition for Motion-free, High-performance Digital Subtraction Angiography

Unmet Need· Digital subtraction angiography (DSA) is an imaging technique that utilizes a contrast agent and subtraction of radiopaque structures (like bone) to visualize blood vessels for the assessment of cardiovascular disease (Stanford). However, due to involuntary motion of soft tissue, this subtractive measure is often misregistered, leading...

Published: 3/14/2025 | Inventor(s): Jianan Gang, Joseph Stayman

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Category(s): Technology Classifications > Medical Devices > Imaging, Technology Classifications > Research Tools > Imaging

Spectral DSA

Unmet NeedCT angiography with digital subtraction (DSA) is the standard diagnostic imaging method for cardiovascular abnormalities (1). This technique captures images both before and after injection of radiopaque contrast; images are then subtracted from one another, leaving only contrast enhanced vasculature in the final image. While DSA is the gold...

Published: 3/14/2025 | Inventor(s): Joseph Stayman, Jianan Gang

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Category(s): Technology Classifications > Computers, Electronics & Software > Image Processing & Analysis, Technology Classifications > Diagnostics > Diagnostic Imaging, Technology Classifications > Medical Devices > Imaging, Technology Classifications > Research Tools > Imaging, Clinical and Disease Specializations > Cardiovascular > Aneurysm, Clinical and Disease Specializations > Cardiovascular > Vascular Diseases, Clinical and Disease Specializations > Neurology > Cerebral Aneurysm, Clinical and Disease Specializations > Neurology > Cerebral Ischemia, Clinical and Disease Specializations > Neurology > Hemorrhage

Anthropomorphic Phantoms for Fluoroscopy and Radiography Applications

Unmet Need· Medical imaging phantoms are “stand-ins” for human tissue, used to benchmark and ensure quality control and subsequent calibration of imaging systems; however, as modern medical imaging methods become more sophisticated, patient-specific anatomy and clinical scenarios have become increasingly critical for this quality assurance. Current...

Published: 3/14/2025 | Inventor(s): Jianan Gang, Joseph Stayman, Ingrid Reiser, Peter Noel

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Category(s): Technology Classifications > Medical Devices > Imaging

Multiple X-ray Focal Spots for High-Resolution CT

JHU Ref #: C17539Unmet Need· High spatial resolution CT has many clinical applications, including identification of small fractures and visualization of internal organ structures. · Improved spatial resolution of a CT scan has been limited by several factors, including the size of the x-ray source focal spot, x-ray tube power, detector...

Published: 3/14/2025 | Inventor(s): Joseph Stayman, Jianan Gang, Peter Noel

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Category(s): Technology Classifications > Computers, Electronics & Software > Algorithms

Non-circular CT Orbit Design for Minimization of Metal Artifacts

Unmet Need· Computed tomography scans (CT) are highly detailed, cross-sectional images that provide critical information for diagnostic and therapeutic purposes (FDA); however, this imaging modality is susceptible to “missing data” due to metal artifacts of implants or other tools (Alzain et al.). Current techniques to overcome these obscured...

Published: 3/14/2025 | Inventor(s): Jianan Gang, Joseph Stayman

Keywords(s): Computer Systems Based on Mathematical Models, Computer Systems Based on Specific Computational Models, Computing; Calculating; Counting, Distortion Elimination Software, Image Processing Software, Imaging and Sensing Systems, In Vivo Medical Imaging, Physics

Three Material Decomposition using a Triple-Layer Flat-Panel Detector

Value Proposition:Method for direct, real-time visualization of bone, water, and iodine contrast agents.Allows for better visualization of moving structures; reduces imaging artifacts induced by motion (i.e. beating heart) Technology DescriptionResearchers at Johns Hopkins have developed a method for fast processing of data acquired using a triple-layer...

Published: 3/14/2025 | Inventor(s): Joseph Stayman, Jianan Gang, Xiao Jiang

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Category(s): Technology Classifications > Medical Devices > Imaging, Technology Classifications > Diagnostics > Diagnostic Imaging, Technology Classifications > Computers, Electronics & Software > Machine Learning

Bias-Tolerant Imaging

Unmet NeedComputed tomography (CT) is one of the primary imaging modalities used to image focal liver lesions and assess the efficacy of oncological therapy. Typically, patients are scanned using iodine contrast-enhanced CT, where the change in lesion size over time is an indicator of therapeutic efficacy. However, exclusively relying on lesion size...

Published: 3/14/2025 | Inventor(s): Joseph Stayman, Jianan Gang

Keywords(s):

Category(s): Clinical and Disease Specializations, Clinical and Disease Specializations > Oncology, Technology Classifications > Medical Devices > Imaging, Technology Classifications > Research Tools > Imaging

Backprojection Method for 3D Image Reconstruction

Unmet NeedComputed tomography (CT) use has dramatically increased over the past 20 years such that around 31% of primary care patients undergo CT scans every year. All CT scans employ “back-projection” as the basic computational method to relate 2D detector signal values into a 3D re-construction. However, image reconstruction sometimes leads to noise...

Published: 3/14/2025 | Inventor(s): Jeffrey Siewerdsen, Alejandro Sisniega, Joseph Stayman

Keywords(s): Image Display Hardware, Image Display Software, Imaging and Sensing Systems, In Vivo Medical Imaging, Integrated Imaging System

Category(s): Technology Classifications > Computers, Electronics & Software > Image Processing & Analysis, Technology Classifications > Computers, Electronics & Software > Machine Learning, Technology Classifications > Medical Devices > Imaging

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