Traditional autopsy remains the gold standard in forensic pathology – it allows direct examination of organs, collection of tissue samples, and histopathological analysis. But it comes with limitations that affect both accuracy and acceptance. The procedure is invasive and irreversible – once performed, the body cannot be re-examined in its original state. Findings depend heavily on the individual examiner’s expertise. Cultural and religious objections frequently arise, particularly in communities where physical dissection is prohibited. And the emotional distress caused to families can be significant.
How Virtual Autopsy Works: The Five-Step Process
At Pramaan 3.0, Samshad Begum Khan explained the systematic virtual autopsy process in five structured steps:
Step 1: Whole Body CT Scan
A complete body scan is performed using a case-specific CT protocol tailored to the nature of the case – whether trauma, poisoning, burns, or other causes. The scan captures cross-sectional images of every anatomical region.
Step 2: DICOM Data Transfer
The imaging data is transferred to a CT console or server in DICOM (Digital Imaging and Communications in Medicine) format – the standard format for medical imaging – for analysis, storage, and secure archiving.
Step 3: 3D Reconstruction and 2D Analysis
Internal organs, skeletal structures, and soft tissues are analysed using reconstruction software. 3D visualisation helps identify fractures, internal trauma, haemorrhages, and foreign objects – often with greater precision than physical examination, particularly for complex skeletal injuries.
Step 4: Image-Guided Minimally Invasive Sampling
CT-guided procedures allow targeted retrieval of samples – such as stomach contents or tissue biopsies – without full dissection. This maintains body integrity while still enabling toxicological and histopathological analysis when needed.
Step 5: Cause-of-Death Report
A detailed forensic radiology report is prepared with systematic documentation of all findings, following international standards and Interpol disaster victim identification guidelines. The report includes case registration, imaging findings, external and internal examination details, laboratory results, and a final cause-of-death opinion.
The Case Study That Proved Why PMCT Matters
To demonstrate practical application, Khan presented a real case at Pramaan 3.0. A 30-year-old male was found 18 hours after death. His family identified him. No decomposition was observed, but thermal injuries were present. The death was initially recorded as accidental.
The imaging revealed concealed internal findings that were not visible during external examination – findings that raised suspicion of homicide rather than accident. With it, a potential homicide was identified. This case illustrates the core value proposition of virtual autopsy: it can uncover injuries that external examination misses, prevent misclassification of deaths, and provide objectives.
What Drives the Adoption of Virtual Autopsy Globally
He has discussed ten factors driving PMCT adoption worldwide: advancement in imaging technology, demand for objective and reproducible evidence, cultural and religious sensitivity, mass casualty incident management, legal requirements for transparent documentation, reduced occupational exposure for forensic professionals, increased use of digital evidence in courts, global collaboration in forensic science, growing awareness of ethical standards, and AI-based future potential in forensic diagnostics.
International adoption is already well established. AIIMS New Delhi is India’s first centre with a virtual autopsy facility. Japan has adopted postmortem imaging widely due to declining traditional autopsy rates. Switzerland, where the term ‘Virtopsy’ was coined, continues to lead research in forensic post-mortem imaging.
PMC: Virtual autopsy applying CT and MRI for forensic investigations
Virtual Autopsy Training Courses at Parul University
Pramaan 3.0 also announced internationally recognised certified courses in virtual autopsy, to be offered in collaboration with VAFS at Parul University. These courses cover PMCT examination technique, interpretation skills development, 3D forensic reconstruction,forensic radiology reporting, and capacity building in modern forensic imaging. They are designed for both students and working professionals looking to add advanced forensic imaging competencies to their practice.
The announcement was supported by Mr. Ajay Appukuttan Nair, Chairman of Vizopsy and VAFS, who described virtual autopsy not just as a tool but as a transformative software solution with vast future potential.
Despite coming from an engineering background, Nair built extensive expertise in forensic imaging through continuous learning and cross-disciplinary collaboration – demonstrating that forensic science increasingly requires interdisciplinary skills.
FAQ - Virtual Autopsy and PMCT
1. Does virtual autopsy replace traditional autopsy?
No. Virtual autopsy (PMCT) is complementary, not a replacement. It adds a non-invasive diagnostic layer that enhances accuracy, particularly for detecting fractures, haemorrhages, and concealed injuries. Histopathology and toxicology still require tissue samples obtained through traditional methods.
2. What is PMCT in forensic science?
PMCT stands for Postmortem Computed Tomography. It uses CT scanning to produce high-resolution, 3D images of a deceased body's internal structures without physical dissection. The digital data can be archived and re-examined years later.
3. Will Parul University offer virtual autopsy courses?
Yes. Internationally recognised certified courses in PMCT examination, 3D forensic reconstruction, and forensic radiology reporting are being introduced at Parul University in collaboration with VAFS (Virtual Autopsy Forensic Services).
