Image quality of supine chest radiographs: intra-individual comparison of computed radiography and low-dose linear-slit digital radiography

Abstract

Image quality of supine chest radiographs: intra-individual comparison of computed radiography and low-dose linear-slit digital radiography Abstract The purpose of this retrospective study was to intraindividually compare the image quality of computed radiography (CR) and low-dose linear-slit digital radiography (LSDR) for supine chest radiographs. A total of 90 patients (28 female, 62 male; mean age, 55.1 years) imaged with CR and LSDR within a mean time interval of 2.8 days±3.0 were included in this study. Two independent readers evaluated the image quality of CR and LSDR based on modified European Guidelines for Quality Criteria for chest X-ray. The Wilcoxon test was used to analyse differences between the techniques. The overall image quality of LSDR was significantly better than the quality of CR (9.75 vs 8.16 of a maximum score of 10; p<0.001). LSDR performed significantly better than CR for delineation of anatomical structures in the mediastinum and the retrocardiac lung (p<0.001). CR was superior to LSDR for visually sharp delineation of the lung vessels and the thin linear structures in the lungs. We conclude that LSDR yields better image quality and may be more suitable for excluding significant pathological features of the chest in areas with high attenuation compared with CR.

The RAD-HOME Project: A Pilot Study of Home Delivery of Radiology Services

“…5,6 Because their prevalence of use rises with patient age, prescription drugs may contribute to the age-related increase in LUTS. 7,8 Most previous research has focused on LUTS overall, without accounting for heterogeneity in etiology. If a significant proportion of LUTS can be attributed to medication use, the observed association between a suspected risk factor and LUTS could be attenuated.…”

“…Radiologists used the European Guidelines on Quality criteria, modified for supine radiographs, to intraindividually compare the quality of chest images. 7 The following criteria were rated: symmetrical reproduction of the thorax; reproduction of the whole rib cage above the diaphragm; visually sharp reproduction of vascular pattern in the whole lung, trachea and proximal bronchi, borders of the heart and aorta, diaphragm, and lateral costophrenic angles; visualization of retrocardiac lung, mediastinum, and spine through the heart shadow; and small round details in the whole lung, including the retrocardiac area.…”