Early time-related course of image findings in postmortem MRI: Typical findings and observer agreement in a porcine model

•This study evaluates temporal evolution of fluid and gas accumulation in postmortem MRI in a porcine model.•We found excellent intra- and interobserver agreement for postmortem MR imaging findings.•Development of pulmonary and hepatic fluid collections shows a concordant time-related appearance in a porcine model.•Time-related imaging findings in MRI might be supportive for the retrospective determination of time of death.