The mechanism and influence factors analysis of Windmill Artifact in Multi-slice CT

来源 :2013中华医学会影像技术分会第21次全国学术大会暨国际影像技术论坛 | 被引量 : 0次 | 上传用户:huamin1028
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Purpose: To analyze the mechanism and influence factors of Windmill Artifact in Multi-slice CT, explore techniques to decrease and eliminate Windmill Artifact and improve image quality.Method: Analyzed the images of Windmill Artifact in Multi slice CT,divided them into several groups by pitch(Beam Pitch 0.6875、0.9375、1.4375 or Helical Pitch 11、15、23)、 collimation thickness (0.5、1、2mm) 、 reconstruction thickness (O.5、1、2、3、5、7、10mm) , evaluated and classified in three degrees (severe, middle and light) by two experienced CT technologists with double blind method.
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