Estimation of the time of death by measuring the variation of lateral cerebral ventricle volume and cerebrospinal fluid radiodensity using postmortem computed tomography

Risultato della ricerca: Contributo in rivistaArticolo in rivista

Abstract

Using postmortem CT (PMCT), changes in the volume of the lateral cerebral ventricles (LCVs) and modifications of the radiodensity of cerebrospinal fluid (CSF) have been examined to identify a possible relationship between these changes and the time of death. Subsequent periodical CT scans termed “sequential scans” for ten corpses at known time of death were obtained, and a 3D segmentation of the entire LCV was carried out to measure its volume and radiodensity over time from ~ 5.5- h up to 273-h postmortem. A linear decrease of the LCV volume for all the cases was observed in the investigated time range, together with an overall logarithmic increase of radiodensity. Although a larger sampling should be performed to improve the result reliability, our finding suggests that the postmortem variation of CSF radiodensity can be a potentially useful tool in determining postmortem interval, a finding that is worthy of further investigation.
Lingua originaleEnglish
pagine (da-a)2615-2623
Numero di pagine9
RivistaInternational Journal of Legal Medicine
Volume135
DOI
Stato di pubblicazionePubblicato - 2021

Keywords

  • Cerebrospinal fluid
  • Tomography, X-Ray Computed
  • Postmortem changes
  • Postmortem computed tomography
  • Postmortem interval
  • Radiodensity
  • Time of death
  • Adult
  • Aged
  • Aged, 80 and over
  • Cerebrospinal Fluid
  • Female
  • Humans
  • Lateral Ventricles
  • Linear Models
  • Male
  • Middle Aged
  • Postmortem Changes
  • Time Factors
  • Lateral cerebral ventricle

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