Star-trail artifacts of the advanced-putrefied brain on postmortem CT. (March 2021)

• Record Type: Journal Article
• Authors: Kobayashi, Tomoya; Yamamori, Moyu; Shiotani, Seiji; Numano, Tomokazu; Ishimori, Yoshiyuki; Abe, Shinji; Hayakawa, Hideyuki
• Is Part Of: Forensic Imaging. Volume 24(2021)
• Publication Date: 2021-03
• DOI: 10.1016/j.fri.2021.200432
• Languages: English
• ISSNs: 2666-2256

Abstract

Highlights: Postmortem CT (PMCT) of advanced-putrefied brain with cavitation was performed. PMCT showed numerous star-trail artifacts similar to ring artifacts. Star-trail artifacts do not occur due to mechanical problems. Abstract: We report star-trail artifacts of advanced-putrefied brain on postmortem CT (PMCT) of a 77-year-old male approximately one month after death. After CT calibration, routine PMCT (tube current time product: 400 mAs) showed star-trail artifacts, which arose due to cerebral cavitation, but were hardly visible on low-dose PMCT (100 mAs) due to noise. Low-dose PMCT with 4-time-image summation also showed star-trail artifacts. Those are not due to mechanical X-ray detector problems.