By Topic

Imaging characteristics of mobile digital radiographic system

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)

Current digital radiography systems are rapidly growing in clinical applications. The purpose of this study was to evaluate the characteristics of a mobile digital radiographic system. The performance of the mobile DR system was evaluated by measuring the modulation transfer function (MTF), noise power spectrum (NPS), and detective quantum efficiency (DQE). Measurements were made on a LISTEM Mobix-1000 generator and a Teleoptic PRA Alpha- R4000 detector. Imaging characteristics were measured for these two systems using the IEC 61267's RQA5 (kVp: 74, additional filtration: 21 mmAl) radiographic condition. The result for the mobile DR system, MTF at 10% and DQE values using 0.19mR at 0 cycles/mm were measured as 2.4 cycles/mm and 43%, respectively. This high DQE at low frequencies may be useful for low frequency information. The NPS curves gradually decreased at high spatial frequencies. The NPS and the DQE curves show some exposure dependency with lower NPS and DQE value at higher exposure. The results suggested that mobile DR system could be integrated with emergency ambulance system in teleradiologic imaging applications.

Published in:

Control, Automation and Systems, 2007. ICCAS '07. International Conference on

Date of Conference:

17-20 Oct. 2007