Universiti Teknologi Malaysia Institutional Repository

Objective and subjective image quality measures of medical screen-film systems

Wan Hassan, Wan Muhamad Saridan and Munajat, Yusof and Sahibuddin, Shamsul (2004) Objective and subjective image quality measures of medical screen-film systems. Jurnal Fizik Malaysia, 25 . pp. 15-18. ISSN 0128-0333

[img]
Preview
PDF
41Kb

Abstract

Image quality of Lanex Regular/T Mat G and Lanex Regular/T Mat L screen-film systems was measured objectively by means of noise equivalent quanta (NEQ) and subjectively by means of receiver operating characteristic (ROC) curve analysis to study the link between the two measures. For the objective measure, uniformly exposed radiographs and radiographs of bar pattern test object were used to determine the NEQ. For the subjective measure, detection of simulated lesions in posteroanterior anthropomorphic chest radiographs by an observer was analysed by the ROC methodology. Both measures show that a low frequency signal shows better on Lanex Regular/T Mat L, whilst a high frequency signal shows better on Lanex Regular/T Mat G.

Item Type:Article
Uncontrolled Keywords:diagnostic radiology, medical imaging, noise equivalent quanta (NEQ), image quality, receiver operating characteristic (ROC) curve, screen-film system
Subjects:Q Science > QC Physics
Divisions:Science
ID Code:2520
Deposited By: Dr Wan Muhamad Saridan Wan Hassan
Deposited On:04 Nov 2008 01:46
Last Modified:01 Jun 2010 03:03

Repository Staff Only: item control page