An Unusual Cause of the Ring Artifact on Transaxial CT Images

Journal of Nuclear Medicine Technology

Ashish Kumar Jha¹  Venkatesh Rangarajan¹  Nilendu C. Purandare¹ 

[1] Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Parel, Mumbai, India Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Parel, Mumbai, India Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Parel, Mumbai, India

关键词: transaxial image;    artifact;    computed tomography;    detector module;    motherboard;   

DOI  :  10.2967/jnmt.115.165175

学科分类：医学（综合）

来源: Society of Nuclear Medicine

【 摘 要 】

Artifacts and image quality are two sides of the same coin. The ring artifact is scanner-based and caused mainly by either a miscalibrated element or a defective element of a detector row. We describe a rare cause of the ring artifact that appeared on a transaxial CT image because of a loose electronic contact. To our knowledge, this particular cause of the ring artifact has not been described in literature.

【 授权许可】

Unknown