Scientific American - USA (2019-10)

(Antfer) #1

DISPATCHES FROM THE FRONTIERS OF SCIENCE, TECHNOLOGY AND MEDICINE


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INSIDE


  • Nonexperts see beauty in math

  • Trackers reveal frog fathers’ journeys
    to drop off tadpoles

  • Scientists isolate a “particle” of sound

  • Scorpion venom compounds act
    as antibiotics


MEDICAL EDUCATION

Disappearing


Bodies


Simulations will replace
traditional cadaver dissections
in some medical schools

In 1231 Frederick II, the Holy Roman
Emperor who ruled over much of Europe,
issued a decree requiring schools that trained
doctors to hold a human body dissection
once every five years. It was a slow debut for
what would become a cornerstone of medi-
cal education. During the Renaissance,
cadaver dissections helped scientists and art-
ists gain a hands-on understanding of human
anatomy. Today they are an essential experi-
ence for first-year medical students, a time-
honored initiation into the secrets of our flesh.
Now, nearly a millennium after its mea-
sured introduction, cadaver dissection may
have begun an equally slow exit. This year a
few U.S. medical schools will offer their anat-
omy curriculum without any cadavers.
Instead their students will probe the human
body using three-dimensional renderings in
virtual reality, combined with physical repli-
cas of the organs and real patient medical
images such as ultrasound and CT scans.
The program developers hope technolo-
gy can improve on some of the limitations
of traditional approaches. It takes a long time
to dissect cadavers, and some body parts
are so inaccessible that they may be de -
stroyed in the process. Plus, the textures and
colors of an embalmed cadaver’s organs do
not match those of a living body, and donat-
ed bodies tend to be old and diseased. “If
you want to be truthful about anatomy edu-
cation, it hasn’t changed much since the
K ATERYNA KON Renaissance,” says James Young, chief aca-

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