Virtual Autopsy Morphological Features of Drowning.

Area of Science:

• Forensic Pathology
• Radiology
• Medical Imaging

Background:

• Diagnosing drowning deaths can be challenging, requiring meticulous examination of evidence.
• Conventional autopsy may have limitations in identifying subtle signs of drowning.
• Virtual autopsy offers a non-invasive method for postmortem examination.

Purpose of the Study:

• To evaluate the diagnostic value of virtual autopsy in identifying key evidence of drowning.
• To explore the application of virtual autopsy in the forensic pathological diagnosis of drowning.

Main Methods:

• Computed tomography (CT) imaging was performed on 7 drowned corpses prior to conventional autopsy.
• Image data was analyzed for specific characteristics, including fluid volume and CT values.
• Findings were compared against 15 non-drowned control cases.

Main Results:

• Postmortem CT revealed increased fluid in the respiratory tract and ground-glass opacities in the lungs of drowning victims.
• Significantly higher fluid volumes were observed in the sinuses of drowning cases (10.24±4.70 mL) versus controls (2.02±2.45 mL).
• Lower average CT values for sinus fluid, left atrial blood, and gastric contents were noted in drowning cases (P<0.05).

Conclusions:

• Integrating multiple imaging findings and virtual measurements aids in the forensic diagnosis of drowning.
• Virtual autopsy serves as a valuable auxiliary tool in forensic drowning investigations.
• CT-based virtual autopsy provides objective evidence for drowning diagnosis.