The Cone Beam O-Arm Imaging System: Radiation Dose, Image Quality, and Clinical Applications

ISSN: 1877-6132 (Online)
ISSN: 2210-6847 (Print)

Volume 5, 2 Issues, 2015

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Recent Patents on Medical Imaging

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Charles Bellows
Chief Division of General Surgery
University of New Mexico
New Mexico

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The Cone Beam O-Arm Imaging System: Radiation Dose, Image Quality, and Clinical Applications

Recent Patents on Medical Imaging, 3(2): 103-110.

Author(s): Jie Zhang.

Affiliation: Department of Radiology, College of Medicine, University of Kentucky, 800 Rose Street, Room HX 311A, Lexington, KY 40536-0293, USA.


The O-armTM Imaging System (O-arm) is a patented x-ray imaging apparatus with a generally O-shaped gantry ring. It combines a traditional C-arm fluoroscope in a two-dimensional (2D) scan acquisition mode and a computed tomography (CT) scanner in a three-dimensional (3D) scan acquisition mode. Although the O-arm was originally designed primarily to support orthopedic surgery, it also has a potential for image-guided surgery and vascular surgery. Since its introduction in 2006, the O-arm cone beam imaging system has gradually gained acceptance and applications in both orthopedic and radiology departments. This paper provides an overview of patient radiation dose, image quality, as well as clinical applications of the O-arm cone beam imaging system.


3D imaging, cone beam CT, image quality, imaging performance, O-arm, orthopedic surgery, radiation dose.

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Article Details

Volume: 3
Issue Number: 2
First Page: 103
Last Page: 110
Page Count: 8
DOI: 10.2174/2210684703666131211003404

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