PT - JOURNAL ARTICLE AU - Sajid Bashir AU - Muhammad Shahbaz AU - Dilber Iqbal TI - A Bizarre Ring Artifact on SPECT/CT Images AID - 10.2967/jnmt.116.189365 DP - 2017 Jun 01 TA - Journal of Nuclear Medicine Technology PG - 119--120 VI - 45 IP - 2 4099 - http://tech.snmjournals.org/content/45/2/119.short 4100 - http://tech.snmjournals.org/content/45/2/119.full SO - J. Nucl. Med. Technol.2017 Jun 01; 45 AB - We encountered a round artifact on images obtained with our SPECT/CT system: a small dark spot surrounded by a broad light ring. The artifact was due to a problem with the SPECT portion of the hybrid system and was successfully removed through servicing of the system. This case report describes this scanner-based artifact, which, to our knowledge, has not previously been reported in the literature.