Search Results - jeffrey+siewerdsen

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Motion Correction Method for Digital Subtraction Angiography

Unmet NeedDigital subtraction angiography (DSA) is a commonly used x-ray technique in interventional radiology to visualize blood vessels. Two images are acquired, one with administration of iodine contrast in blood vessels and one without (non-contrast), and the subtraction of the two images yields a clear 2-dimensional (2D) projection of the vasculature...

Published: 5/10/2024 | Inventor(s): Jeffrey Siewerdsen, Alejandro Sisniega

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

Method and Apparatus for Image-Guided Placement of Surgical Instrumentation

Unmet NeedThe global market for image guided surgery (IGS) systems is projected to reach over $5.2 billion in 2024 at a CAGR of 6.6%, due to increase in new systems that are more portable, precise, safe, and less expensive. IGS systems are very beneficial in surgical procedures by allowing for greater control, real-time feedback upon an intervention...

Published: 5/10/2024 | Inventor(s): Jeffrey Siewerdsen, Niral Sheth, Prasad Vagdargi, Greg Osgood, Wathudurage De Silva

Keywords(s):

Category(s): Clinical and Disease Specializations > Surgery, Technology Classifications > Computers, Electronics & Software

Method and System for Registering Multiple Structures in Medical Images

Unmet NeedRobot-assisted procedures are becoming more common, from accounting for 1.8% of all general surgeries in 2012 to 15.1% in 2018. One of the most attractive features of surgical robotics is the ability to integrate preoperative and intra-operative images to provide more information for surgical planning and navigation. Specifically, for surgical...

Published: 5/10/2024 | Inventor(s): Jeffrey Siewerdsen, Runze Han, Sebastian Vogt, Gerhard Kleinszig

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

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: 5/9/2024 | 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

Method for Metal Artifact Avoidance in Computed Tomography

Unmet NeedThe global market for computer tomography (CT) scanners was valued at $ 8.2 billion in 2017 and is expected to reach $10.4 billion by 2022 at a CAGR of 4.9% from 2019 to 2026. Evidently, 3-D volumetric CT imaging is a prevalent and profitable means of imaging the body for diagnos-tic and image-guided medical procedures. However, one of the...

Published: 5/9/2024 | Inventor(s): Jeffrey Siewerdsen, Pengwei Wu, Niral Sheth, Bjoern Kreher

Keywords(s): Image Processing Software, Image Reconstruction Software, Imaging and Sensing Systems, In Vivo Medical Imaging

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

System for Integrated Image Guidance

Unmet NeedA variety of medical interventions involve the placement of an interventional device within the patient for the purpose of biopsy or therapy. Accurate placement of the device can be a challenge, particularly in joints.Technology OverviewJohns Hopkins faculty member, Dr. Jeffrey Siewerdsen, has developed a system that combines and integrates...

Published: 5/9/2024 | Inventor(s): Wojciech Zbijewski, John Carrino, Joseph Stayman, Jeffrey Siewerdsen

Keywords(s): Integrated Imaging System, Interventional and Surgical Systems, Surgical Navigation

Category(s): Technology Classifications > Computers, Electronics & Software, Technology Classifications > Medical Devices > Imaging, Technology Classifications > Medical Devices > Surgical, Technology Classifications > Medical Devices

Methods and algorithms for reconstruction of difference images using prior structural information

Unmet NeedThe global market for medical imaging should grow from $34.1 billion in 2018 to reach about $43.6 billion by 2023. One of the most important aspects of medical imaging is sequential imaging. Currently, most sequential studies have a primary goal of estimating the difference between a prior image and the current measurements of the anatomy,...

Published: 5/9/2024 | Inventor(s): Joseph Stayman, Amir Pourmorteza, Jeffrey Siewerdsen

Keywords(s): Imaging and Sensing Systems, In Vivo Medical Imaging

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

A radiation treatment couch with integrated helical CT for on-line image guidance

Unmet NeedImage-guided radiation therapy (IGRT) denotes the use of imaging, usually CT scans and X rays, to precisely help target the cancer tissue with radiation therapy. This is specifically done through a flat-panel detector in cone beam computed tomography (CBCT) for IGRT. Flat panel CBCT imaging quality is degraded by several issues: 1) less than...

Published: 5/9/2024 | Inventor(s): John Wong, Jeffrey Siewerdsen, Junghoon Lee

Keywords(s): Imaging and Sensing Systems, Imaging Modality, In Vivo Medical Imaging, Integrated Imaging System, X-ray Computed Tomography (CT)

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

Multi-Motion Compensation for Computed Tomography

Unmet NeedDuring computed tomography (CT) or cone-beam CT, scans can be affected due to patient motion that causes significant artifacts that diminish image quality. This is functionally the case because of slow image acquisition speed, causing artifacts in the image due to patient’s difficulty in following commands and remaining still. Furthermore,...

Published: 5/9/2024 | Inventor(s): Jeffrey Siewerdsen, Wojciech Zbijewski, Alejandro Sisniega, Joseph Stayman

Keywords(s): Image Processing Software, Image Reconstruction, Imaging and Sensing Systems, Imaging Modality, In Vivo Medical Imaging, X-ray Computed Tomography (CT)

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

Method for Patient-Specific Decision Support in Spine Surgery

Unmet NeedThe current landscape of spine surgery suffers from unacceptably high variability in outcomes. Undesired events such as revision surgery, failed back surgery, and recurrent lumbar disc herniation are becoming increasingly common. The relationships between patient risk factors and outcomes are complex and poorly understood. Thus, determining...

Published: 5/9/2024 | Inventor(s): Jeffrey Siewerdsen, Nicholas Theodore, Wathudurage De Silva, Satyanarayana Vedula

Keywords(s): Clinical Diagnostics, Computer and Network Systems, Computer Software, Diagnostic Tool, Image Analysis Software, Image Processing Software, Imaging and Sensing Systems, In Vivo Medical Imaging, Measurement Tool, Pattern Recognition Software

Category(s): Clinical and Disease Specializations > Surgery, Technology Classifications > Computers, Electronics & Software > Image Processing & Analysis, Technology Classifications > Computers, Electronics & Software > Machine Learning, Technology Classifications > Diagnostics > Diagnostic Imaging

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