Performance evaluation of two computed radiography systems and patient dose in pelvic examination

This study was carried out to evaluate the performance of two computed radiography (CR) units. These evaluations became necessary following the introduction of CR systems in Sudan. Evaluation of the CR systems was performed using physical image quality parameters: signal transfer property, modulatio...

Full description

Saved in:
Bibliographic Details
Published in:Radiation protection dosimetry 2015-07, Vol.165 (1-4), p.392-396
Main Authors: Elshiekh, E, Suliman, I I, Habbani, F
Format: Article
Language:English
Subjects:
Humans
Pelvis - diagnostic imaging
Radiation Dosage
Radiographic Image Enhancement - instrumentation
Radiographic Image Enhancement - methods
Radiometry
Reproducibility of Results
Signal-To-Noise Ratio
Sudan
X-Rays
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study was carried out to evaluate the performance of two computed radiography (CR) units. These evaluations became necessary following the introduction of CR systems in Sudan. Evaluation of the CR systems was performed using physical image quality parameters: signal transfer property, modulation transfer function, normalised noise power spectrum, detective quantum efficiency and the subjective contrast detail detectability. Patient dose was measured in terms of entrance surface air kerma estimated from tube output and exposure factors for 100 patients who had undergone pelvic X-ray examinations. Fuji computed radiography velocity system with columnar screen dose results was much lower than those using CR975 system with granular screen. Patient doses delivered by both systems were within the international diagnostic reference levels.
ISSN:0144-8420
1742-3406
DOI:10.1093/rpd/ncv125