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医学中的CR是指什么？

CR是医学影像疾病诊断的一种。

CR是计算机X射线（computed radiography）的英文缩写。它使用数字化影像，方便接入PACS系统，可结合计算机技术处理图像，提高影像质量。CR价格相对低廉，一套CR即可实现全院X线设备的数字化。

扩展资料：

1、它在给患者进行X线拍摄时剂量比传统X线摄影的剂量要小。

2、 使影像数字化，方便接入PACS系统。

3、IP板可以灵活放置，方便不便行动的重病者。

4、与DR相比价格低廉，一套CR即可实现全院X线设备的数字化。

计算机X线摄影（CR）系统实现常规X线摄影信息数字化，使常规X线摄影的模拟信息直接转换为数字信息；能提高图像的分辨、显示能力，突破常规X线摄影技术的固有局限性；可采用计算机技术，实施各种图像后处理（post-processing）功能，增加显示信息的层次；

可降低X线摄影的辐射剂量，减少辐射损伤，而且只需要一次曝光就能捕捉到多层次的影像信息来满足诊断的要求，在曝光量不足或过量时能在一定程度上较好显示图像，避免因X线摄影参数选择不当而导致重拍，从而减少被检者X线接受剂量。

此外，还可通过磁盘保存图像，避免了传统照片保存时间长而使影像质量下降，便于照片的打印及网上传输、会诊、资源共享。

不仅如此，其影像质量的提高在于计算机的后处理，可通过窗宽、窗位的调整、边缘增强等技术改善影像质量，并在抗击SARS的没有硝烟的战争中发挥了巨大的作用。

而“能量减影”是计算机X线摄影影像处理技术的一种，目前主要用于胸部检查，可同时获得胸部的原始影像、单纯肺组织像、单纯肋骨像等多种影像信息，消除骨骼或软组织影像，从而可为肋骨骨折或肺部肿块及其对肋骨的破坏提供强有力的证据。

参考资料来源：搜狗百科-CR医学中Cr是:计算机放射成像(CR)是数字X线摄影。化验检查也代表肌酐creatinine 简称Cr。考研也是一个道理。温医的学风是出名的，个个早出晚归，努力程度不亚于高三，考试之前通宵自习教室都是爆满的，很多人通宵看书复习。在这样的学风熏陶中，你自己也会更加努力，从而获得更好的考研成绩。温医临床每年都有很多人能考上浙大，复旦，交大的研究生，

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