Virtopsy, also known as a virtual autopsy, is a non-invasive method of examining deceased individuals to determine the cause of death. Some significant evidence that would be lost during a standard autopsy is not destroyed by it. It combines 3D optical measuring methods, photogrammetry, and CT and MRI imaging. CT scans provide details regarding abnormal anatomical findings, while MRIs show the condition of blood vessels, tissues, bones, and soft tissues as well as organ damage and soft tissue injury. Multi Slice Compound Tomography, Multi Planar Reconstruction, and Volume Rendering Technique are utilized to identify injuries caused by weapons, explosions, child abuse, burnt or decayed bodies, fractured bones, age, and sex. Decomposition-related metabolites are measured using MR spectroscopy, which aids in determining the time since death.
Multi-slice CT is used for both two- and three-dimensional imaging. It is possible to comprehend the effects of decompression, air embolism, pneumothorax, hyperbaric trauma, and emphysema better. When a weapon is used to do injury, it is possible to produce a virtual model of the injury with a 3D simulation image by employing a similar weapon and computer software. Entry and exit wounds from a firearm injury can be identified by looking at the fracture pattern, which shows both inside and outward beveling of the bone.With CT scanning, one may see the trajectory of the projectile inside the brain or other internal organs where there has been tissue damage and bleeding. Organ biopsies are possible.
Virtopsy is not a practical alternative to autopsy because of high cost involved in its setup and operation. X-Ray machine is good enough for forensic students. It has some inherent disadvantages of misinterpretation and inability to detect organ lesions.