News | July 22, 2007

New 3D Imaging System for Image Guided Interventions

Source: www.aapm.org

July 23, 2007 - A new type of cone-beam computed tomography (CBCT) imaging system could enable surgeons and interventional radiologists to perform minimally invasive procedures under the guidance of 3-D images acquired during surgery with sub-millimeter spatial resolution. Medical physicists and engineers from the University Health Network in Toronto and Siemens Medical Solutions will present this technology at the 49th Annual Meeting of the American Association of Physicists in Medicine (AAPM), taking place July 22-26, 2007.

Image-guided interventions have conventionally relied on image data acquired before the procedure on a diagnostic CT or magnetic resonance (MR) scanner. However, reliance on preoperative images does not allow visualization of changes imparted during a surgical procedure, such as seeing what remains of a tumor after it is removed.

This imaging promises to overcome these conventional limitations by providing image updates during the procedure. One new technology showing particular promise is CBCT implemented on a surgical C-shaped arm.
Research at the University of Toronto, headed by Jeffrey Siewerdsen, in collaboration with clinical researchers at the University Health Network and at Siemens Medical Solutions (SMS), has yielded a 3-D imaging technology that could provide physicians with sub-millimeter spatial resolution and soft tissue visibility during surgery in near real-time. The technology involves the development of CBCT on a mobile C-arm to acquire a full-volume image in a single rotation around the patient.

While the image quality achieved with early cone-beam CT prototypes is not quite equivalent to that of a high-performance diagnostic CT scanner, image quality has been shown to be sufficient to guide surgeons and radiologists with respect to soft-tissue targets and critical structures.
Patients have been successfully treated with the prototype in a research setting, with trials underway in a broad spectrum of surgical and interventional procedures ranging from tumor ablation to orthopedic surgery and brachytherapy. High-quality intraoperative imaging provided by C-arm CBCT is expected to dramatically improve surgical performance and expand the application of minimally invasive interventions to cases that would be otherwise untreatable.

For more information: www.aapm.org, www.uhn.ca

Related Content

SimonMed Deploys ClearRead CT Enterprise Wide
News | Computer-Aided Detection Software | September 17, 2018
September 17, 2018 — National outpatient physician radiology group SimonMed Imaging has selected Riverain Technologie
Siemens Healthineers Announces First U.S. Install of Somatom go.Top CT
News | Computed Tomography (CT) | September 17, 2018
September 17, 2018 — The Ohio State University Wexner Medical Center in Columbus recently became the first healthcare
The CT scanner might not come with protocols that are adequate for each hospital situation, so at Phoenix Children’s Hospital they designed their own protocols, said Dianna Bardo, M.D., director of body MR and co-director of the 3D Innovation Lab at Phoenix Children’s.

The CT scanner might not come with protocols that are adequate for each hospital situation, so at Phoenix Children’s Hospital they designed their own protocols, said Dianna Bardo, M.D., director of body MR and co-director of the 3D Innovation Lab at Phoenix Children’s.

Sponsored Content | Case Study | Radiation Dose Management | September 07, 2018
Radiation dose management is central to child patient safety. Medical imaging plays an increasing role in the accurate...
Carestream Releases Second-Generation Metal Artifact Reduction Software for OnSight 3D Extremity System
Technology | Computed Tomography (CT) | September 06, 2018
Carestream Health has started shipping a new software version for its Carestream OnSight 3D Extremity System that...

Image courtesy of Siemens Healthineers

Feature | CT Angiography (CTA) | September 06, 2018 | Dave Fornell
There have been a few big, recent advancements in cardiac computed tomography angiography (CCTA) imaging technology....
Key Patient Preparations for a CT Scan
News | Computed Tomography (CT) | September 05, 2018
The Center for Diagnostic Imaging (CDI) in Miami recently released a list of important preparations patients should...
iSchemaView RAPID Technology Now Installed in More Than 500 Stroke Centers
News | Neuro Imaging | August 27, 2018
iSchemaView announced that more than 575 stroke centers in 22 countries have selected the RAPID advanced imaging...
Doctor-Patient Discussions Neglect Potential Harms of Lung Cancer Screening
News | Lung Cancer | August 15, 2018
August 15, 2018 — Although national guidelines advise doctors to discuss the benefits and harms of...
ACR LI-RADS Steering Committee Releases New Version of CT/MRI LI-RADS
News | Clinical Decision Support | August 13, 2018
August 13, 2018 — The American College of Radiology Liver Imaging Reporting and Data System (LI-RADS) steering commit
Aidoc Receives FDA Clearance for AI Detection of Acute Intracranial Hemorrhage
Technology | Clinical Decision Support | August 08, 2018
Aidoc announced that it was granted U.S. Food and Drug Administration (FDA) clearance for the first product of its...