Image Quality In Chest Radiography Research Articles

ICRU report 70--image quality in chest radiography * International Commission on Radiation Units and Measurements, 2003: Nuclear Technology Publishing, Ashford, Kent, UK, ISBN: 1 870965 98 1

ICRU report 70--image quality in chest radiography * International Commission on Radiation Units and Measurements, 2003: Nuclear Technology Publishing, Ashford, Kent, UK, ISBN: 1 870965 98 1

Image Quality in Chest Radiography: Abstract

Image quality in chest radiography is an important, but complex, subject. The complicated anatomy of the chest, as well as the various ways that chest disease may manifest itself, require careful consideration of radiographic technique. The manner in which human observers deal with the complexity of chest images adds further dimensions to image analysis that are not found in other radiography examinations. This report describes many issues that are related to the quality of chest radiographic images. In so doing, it relies upon the very extensive literature on this topic, a topic that has been one of the most thoroughly studied in all of radiography. Strategies that are generally agreed to improve the quality of chest radiographs are described, as are approaches to the assessment of image quality.

Image Quality in Chest Radiography: Abstract

Image quality in chest radiography is an important, but complex, subject. The complicated anatomy of the chest, as well as the various ways that chest disease may manifest itself, require careful consideration of radiographic technique. The manner in which human observers deal with the complexity of chest images adds further dimensions to image analysis that are not found in other radiography examinations. This report describes many issues that are related to the quality of chest radiographic images. In so doing, it relies upon the very extensive literature on this topic, a topic that has been one of the most thoroughly studied in all of radiography. Strategies that are generally agreed to improve the quality of chest radiographs are described, as are approaches to the assessment of image quality.

Optimization Of Image Quality In Chest Radiography

Optimization Of Image Quality In Chest Radiography

Assessment of Image Quality for Chest Radiography in the West Midlands

Radiographic quality of chest radiographs has been assessed during a patient dosimetry programme. Radiographs from each of the centres involved were assessed by a radiologist from that centre and a sample of these were assessed by a control radiologist. A questionnaire was used by the radiologist at each centre to assess patient positioning, respiration and radiographic quality. A control radiologist assessed each radiograph in two ways. The first assessment was made using the questionnaire. The films were then reviewed a second time, in a single sitting, at which they were scored on an arbitrary scale of 1 to 5 in order to assess the immediate impression of the radiographic quality. Inter-observer variations were seen to be large, with a correlation r=0.52. Much smaller variations in intra-observer observation were seen when assessing the same films using the two methods above, thus demonstrating that the control radiologist was consistent. The relationship between image quality and (a) dose and (b) applied potential was assessed using the quality scores obtained by the control radiologist using the questionnaire. There was a slight tendency to higher radiographic scores at lower patient doses (r=0.36, p=0.13). There was a strong relationship between image quality and applied potential (r=0.77, p=0.005).

Assessment of Image Quality for Chest Radiography in the West Midlands

Assessment of Image Quality for Chest Radiography in the West Midlands