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E. Busemann-Sokole, T. Cradduck (1983)
National electrical manufacturers associationJournal of the A.I.E.E., 45
(2002)
Rotational cardiovascular x-ray imaging for left coronary artery angiography using a digital flat-panel cardiac imaging system
H. Chotas, James Dobbins, C. Ravin (1999)
Principles of digital radiography with large-area, electronically readable detectors: a review of the basics.Radiology, 210 3
J. Moy (2000)
Signal-to-noise ratio and spatial resolution in x-ray electronic imagers: is the MTF a relevant parameter?Medical physics, 27 1
R. Aufrichtig, P. Xue, C. Thomas, G. Gilmore, D. Wilson (1994)
Perceptual comparison of pulsed and continuous fluoroscopy.Medical physics, 21 2
(2006)
Standard XR 21-2000. Revised May 2002. National Electrical Manufacturers Association (Medical Division)
Reduction of radiation dose in uterine fibroid embolization procedures with use of a digital flat panel system
C. Gordon (2000)
Image quality optimization using an x-ray spectra model-based optimization method, 3977
S Balter, FA Heupler, PJ Lin (2001)
A new tool for benchmarking cardiovascular fluoroscopesCatheter Cardiovasc Interv, 52
S. Balter (2001)
A new tool for benchmarking cardiovascular fluoroscopes.Radiation protection dosimetry, 94 1-2
(2004)
Rotational digital angiocardiography in evaluation of congenital heart disease
Innovative dose reduction in the cath lab with use of a novel robotic patient contouring/detector positioning system
B. Belanger, F. Betraoui, P. Dhawale, P. Gopinath, P. Tegzes, B. Vagvolgyi (2006)
Development of next generation digital flat panel catheterization system: design principles and validation methodology, 6142
(2004)
Assessment of radiation dose reduction and image quality with use of dynamic mode imaging on the flat panel system. In: SIR/Annual Scientific Meeting/ Abstract Archive/First citation
In this article, we present GE Healthcare’s design philosophy and implementation of X-ray imaging systems with dose management for pediatric patients, as embodied in its current radiography and fluoroscopy and interventional cardiovascular X-ray product offerings. First, we present a basic framework of image quality and dose in the context of a cost–benefit trade-off, with the development of the concept of imaging dose efficiency. A set of key metrics of image quality and dose efficiency is presented, including X-ray source efficiency, detector quantum efficiency (DQE), detector dynamic range, and temporal response, with an explanation of the clinical relevance of each. Second, we present design methods for automatically selecting optimal X-ray technique parameters (kVp, mA, pulse width, and spectral filtration) in real time for various clinical applications. These methods are based on an optimization scheme where patient skin dose is minimized for a target desired image contrast-to-noise ratio. Operator display of skin dose and Dose-Area Product (DAP) is covered, as well. Third, system controls and predefined protocols available to the operator are explained in the context of dose management and the need to meet varying clinical procedure imaging demands. For example, fluoroscopic dose rate is adjustable over a range of 20:1 to adapt to different procedure requirements. Fourth, we discuss the impact of image processing techniques upon dose minimization. In particular, two such techniques, dynamic range compression through adaptive multiband spectral filtering and fluoroscopic noise reduction, are explored in some detail. Fifth, we review a list of system dose-reduction features, including automatic spectral filtration, virtual collimation, variable-rate pulsed fluoroscopic, grid and no-grid techniques, and fluoroscopic loop replay with store. In addition, we describe a new feature that automatically minimizes the patient-to-detector distance, along with an estimate of its dose reduction potential. Finally, two recently developed imaging techniques and their potential effect on dose utilization are discussed. Specifically, we discuss the dose benefits of rotational angiography and low frame rate imaging with advanced image processing in lieu of higher-dose digital subtraction.
Pediatric Radiology – Springer Journals
Published: Jul 22, 2006
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