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首页> 外文期刊>European radiology >Image quality of supine chest radiographs: intra-individual comparison of computed radiography and low-dose linear-slit digital radiography.
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Image quality of supine chest radiographs: intra-individual comparison of computed radiography and low-dose linear-slit digital radiography.

机译：仰卧位胸片的图像质量：计算机X线摄影与小剂量线性狭缝数字X线摄影的个体内比较。

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摘要

The purpose of this retrospective study was to intra-individually 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.
机译：这项回顾性研究的目的是在个人内部比较仰卧位胸部X光片（CR）和小剂量线性狭缝数字X线片（LSDR）的图像质量。本研究共纳入90例患者（28例女性，62例男性;平均年龄55.1岁），在平均时间间隔2.8天+/- 3.0内用CR和LSDR成像。两名独立的读者根据经修改的《欧洲胸部X线质量标准指南》评估了CR和LSDR的图像质量。 Wilcoxon检验用于分析这些技术之间的差异。 LSDR的总体图像质量明显优于CR的质量（9.75 vs 8.16，最高分10; p <0.001）。 LSDR在纵隔和心内膜肺的解剖结构描绘方面比CR明显好（p <0.001）。在视觉上清晰描绘肺血管和肺部细细的线性结构方面，CR优于LSDR。我们得出的结论是，与CR相比，LSDR产生更好的图像质量，并且可能更适合在衰减较大的区域中排除胸部的重要病理特征。

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