QinetiQ has developed the world’s first automatic breast-cancer
diagnostic system, PathScore. Traditional diagnosis is time consuming
and subjective, problems exacerbated by the worldwide shortage of
pathologists. Evaluation of the new system showed its performance to be
similar to that of a human pathologist but with enhanced
reproducibility. It can be in constant use and requires no extra
specialist equipment as it is compatible with existing computers,
microscopes and cameras. Until now, use of compressed images for
remote diagnosis has been controversial because commercial image
compression algorithms such as JPEG often lose important detail. The
PathScore team has developed a content-sensitive technique that achieves
high compression ratio without loss of diagnostically important
information and enables transmission of the very large quantity of
images over realistic bandwidths in realistic times. This allows
pathologists to give a valid second opinion from a remote computer
screen, making telepathology a viable option.
The system could also be used to create a patient database in which
the scoring of prognostic features of breast cancer is comparable from
patient to patient. Such a database would be invaluable in clinical
trials of both new and existing therapies.
Source: bjhc&im September 2004
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