Fiedler E, Aichinger U, Böhner C, Säbel M, Schulz-Wendtland R, Bautz W
Institut für Diagnostische Radiologie, Friedrich-Alexander-Universität Erlangen-Nürnberg.
Rofo. 1999 Jul;171(1):60-4. doi: 10.1055/s-1999-9894.
Comparison of image quality between digital phosphor storage plate mammography in magnification technique and a conventional film screen system regarding the special aspect of radiation exposure.
Radiograms of a RMI-mammography phantom were acquired using a conventional film screen system and two digital storage plate systems. Additionally, the radiograms of one digital system were post-processed emphasizing contrast and included in the comparison.
The detectability of details in storage plate mammographies with magnification technique is almost equal to that of film screen mammographies. Thereby, lower radiation exposures were necessary using the digital systems.
Based on these results, storage plate mammography in magnification technique is used in clinical routine at our institution. The correct parameters in image postprocessing are of elementary importance for detail detectability. Future studies must show, whether the lower radiation exposure in digital radiograms of the breast, revealing much higher background noise, will allow the same detail detectability as film screen mammographies.
就辐射暴露这一特殊方面，比较数字磷光存储板乳腺X线摄影放大技术与传统屏片系统的图像质量。
使用传统屏片系统和两个数字存储板系统获取RMI乳腺摄影模体的X线片。此外，对一个数字系统的X线片进行强调对比度的后处理并纳入比较。
采用放大技术的存储板乳腺X线摄影中细节的可检测性几乎与屏片乳腺X线摄影相同。因此，使用数字系统时所需的辐射暴露更低。
基于这些结果，放大技术的存储板乳腺X线摄影在我们机构的临床常规中使用。图像后处理中的正确参数对细节可检测性至关重要。未来的研究必须表明，乳腺数字X线片中较低的辐射暴露，尽管显示出更高的背景噪声，是否能实现与屏片乳腺X线摄影相同的细节可检测性。
