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Swiss doctors conducting autopsies without cutting open bodies, instead using devices including an optical 3D scanner that can detect up to 80% of the causes of death - Source: Reuters
A team of Swiss doctors is conducting about 100 autopsies a year without cutting open bodies, instead using devices including an optical 3D scanner that can detect up to 80% of the causes of death.
Michael Thali, a professor at the University of Berne, and his colleagues have developed a system called "virtopsy", which since 2006 has been used to examine all sudden deaths or those of unnatural causes in the Swiss capital.
He says the US military at Dover Air Force Base is using a more-limited version for autopsies on soldiers.
"Without opening the body we can detect 60-80% of the injuries and causes of death," Thali explains, standing beside the white cylindrical CT scanner in his laboratory.
He says the advantages of virtual autopsies are that digital, permanent records are created that can be shared via the internet.
During an autopsy, which takes about 30 minutes, the deceased is placed on an examining table and the surface scanner, just larger than a shoe box and suspended from a robotic arm, traces along the body's contours.
Two technicians in white lab coats then use computers to evaluate the findings.
"At the moment here in Berne is the only place world wide, which is combining the surface scanning with CT magnetic resonance scanning and post mortem angiography and post mortem biopsy," Thali says, explaining that the total installation cost more than 2 million Swiss francs ($NZ2.74 million).
The CT scanner makes images of skeletal injuries and damage to the brain, while the magnetic scanner produces finer images of soft tissue.
Angiography visualizes the inside of blood vessels.
"That's the big advantage, because you don't have to destroy the body you can see projectiles in 3D and can do the analysis," Thali says of the system's use to the US military.
The 3D imaging began in the mid 1990s, but the post-mortem biopsy device - which uses a needle to extract cells - has been in his lab for only six months, he says.
Although there was little initial interest in the project, Thali says he and his 16 colleagues are now receiving queries from places such as Australia and Scandinavia.
Despite their strengths, Thali says virtual autopsies are unlikely to replace the scalpel variety any time soon.
"At the moment the regular autopsy, which is a very old procedure, is still the gold standard."
"We can use the system for a car crash victim, but not yet swine flu."
