Puig S
Universitätsklinik für Radiodiagnostik Vienna, Austria.
Radiologe. 2003 Dec;43(12):1045-50. doi: 10.1007/s00117-003-0983-7.
The hopes placed in digital radiography have been fulfilled only partly in pediatric radiology. Specifically, the option of gaining reduced radiation exposure in combination with a similar or even improved image quality was hard to realize. The only portable digital system available for a long time were storage phosphors which were disadvantaged by an extremely limited dose-quantum-efficiency (DQE) in comparison to digital flat panel detectors. New developments and the introduction of the dual-reading system led to image qualities comparable to film-screen-systems with high resolution and achievable without dose increase, sometimes even with dose reduction. A study using an animal model suggests that these systems can even be used in preterm infants with very low birth weights. A new portable flat panel detector by Canon may improve digital chest radiography in pediatric patients.
数字放射成像在儿科放射学中的应用仅部分实现了人们的期望。具体而言，在获得类似甚至更好的图像质量的同时降低辐射剂量这一选择很难实现。长期以来唯一可用的便携式数字系统是存储磷光体，与数字平板探测器相比，其剂量量子效率（DQE）极低，存在劣势。新的发展以及双读系统的引入，使得图像质量可与高分辨率的屏-片系统相媲美，且无需增加剂量即可实现，有时甚至剂量还能降低。一项使用动物模型的研究表明，这些系统甚至可用于极低出生体重的早产儿。佳能公司推出的一款新型便携式平板探测器可能会改善儿科患者的数字胸部放射成像。
