Temperature, decomposition, and altered fluid distribution can change how postmortem tissues appear on MRI. These factors may modify tissue-specific signals and complicate direct interpretation of findings. Consequently, readers must distinguish imaging features related to postmortem change from features of pathological interest, using the documented examination conditions to place observations in context.
Sequence choice should follow the examination goal and the postmortem conditions rather than a fixed, universal combination. T1-weighted, T2-weighted, and diffusion imaging are available as distinct options for generating tissue-specific signals, and the protocol can select among them accordingly. This approach aligns image acquisition with the question being investigated and with factors that may affect postmortem appearance.
Careful positioning helps establish a consistent anatomical reference for image interpretation. Documentation records how the body was arranged and which sequences were obtained, linking observed findings to the examination design. This information supports reproducibility, comparison across cases, and transparent interpretation when postmortem changes could affect appearance.
An examination plan should link body positioning, sequence selection, and written documentation to the clinical or forensic question. The protocol should record how the body was positioned, which T1-weighted, T2-weighted, or diffusion sequences were acquired, and relevant postmortem conditions. These records make findings easier to interpret and allow MRI to guide or complement subsequent autopsy procedures.
Medical teams may use this approach in forensic investigation, cause-of-death assessment, perinatal examination, and research on disease-related structural changes. Its value varies with the examination goal and postmortem state, so the selected sequences and interpretation must be adapted accordingly. The resulting images provide anatomical and pathological information while preserving the body for later procedures.
Postmortem MRI can complement or guide an autopsy by providing anatomical and pathological information without first altering the body through dissection. This makes it useful when investigators need imaging findings before subsequent procedures or when preservation matters. The two approaches can therefore be integrated, with MRI contributing documented structural information to broader cause-of-death assessment.