足部双能量CT痛风石成像的伪影研究
Chinese Computed Medical Imaging（2016）
Abstract
目的:探讨足部双能量CT痛风石成像存在伪影类型及发生率.方法:回顾性分析因足部肿痛行双能量CT扫描的42例患者资料.两名有经验的影像科医师对图像独立进行评价,判定双能量痛风石图像上伪影的有无.结果:30例患者(71.42％)的双能量痛风石图像出现伪影,其中29例患者(69.04％)出现指甲伪影,5例患者(11.9％)出现皮肤伪影,2例患者(4.76％)出现运动伪影,2例患者(4.76％)出现亚毫米伪影.结论:足部双能量痛风石成像常出现伪影,了解这些伪影的特点有助于提高诊断的准确率.
MoreKey words
Artifact,Artifact reduction,Dual-energy CT,Gout
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