Manninen H, Terho E O, Wiljasalo M, Wiljasalo S, Soimakallio S
Br J Radiol. 1984 Nov;57(683):991-5. doi: 10.1259/0007-1285-57-683-991.
Six imaging techniques in clinical chest radiography have been evaluated: four film-screen combinations in the conventional grid technique and two combinations in the air gap technique. Five parameters characterising the quality of a chest radiograph were evaluated by three radiologists and one chest physician by using a nominal grading scale from -2 to +2 compared with the standard technique. The quality parameters judged were: the visibility of peripheral lung vessels, lung parenchyme, the pulmonary hilum, and lung structure behind the heart shadow, as well as the visibility of miscellaneous findings of clinical interest. The air gap technique was shown to be superior to the ordinary grid technique. The diagnostic quality of chest radiography does not necessarily deteriorate with the screen speed. However, statistically significant differences were noticed, even between techniques which had equal speed and physical resolution.
对临床胸部X线摄影中的六种成像技术进行了评估：传统格栅技术中的四种胶片-增感屏组合以及气隙技术中的两种组合。由三位放射科医生和一位胸科医生使用与标准技术相比从-2到+2的标称分级量表，对表征胸部X线片质量的五个参数进行了评估。所判断的质量参数包括：外周肺血管、肺实质、肺门以及心影后肺结构的可见性，以及具有临床意义的其他发现的可见性。结果表明气隙技术优于普通格栅技术。胸部X线摄影的诊断质量不一定会随着增感屏速度而下降。然而，即使在速度和物理分辨率相同的技术之间也注意到了统计学上的显著差异。
