Realtime 3D Imaging For Radiation Treatment

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Realtime 3D Imaging For Radiation Treatment
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By Vikki Harmonay
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Thanks to new 3D imaging developed at the
University of Michigan, radiation can now be
measured during treatment. Medical professionals
will be able to map the radiation dose within a
body by capturing and amplifying tiny sound waves
created when X-rays heat tissues in the body.
This first-of-its-kind view of an interaction
provides new data to guide treatments in real
time.
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Hundreds of thousands of cancer patients receive
treatment with radiation every year, which
bombards an area of the body with high energy
waves and particles. These are usually X-rays.
The radiation damages or kills cancer cells so
they cant spread. But the benefits of these
treatments can be undermined by a lack of
precision, as healthy cells can also be filled or
damaged during the process. The treatment can
also raise the risk of new cancers developing.
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Xueding Wang, PhD, the Jonathan Rubin Collegiate
Professor of Biomedical Engineering, professor of
radiology, and corresponding author of the study
in Nature Biotechnology said, Once you start
delivering radiation, the body is pretty much a
black box. We dont know exactly where the X-rays
are hitting inside the body, and we dont know
how much radiation were delivering to the
target, and each body is different, so making
predictions for both aspects is tricky. Thanks
to this real-time 3D imaging, physicians can more
accurately direct radiation toward cancerous
cells and limit the impact of the exposure of
adjacent tissues.
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Sound waves are created when X-rays are turned
into thermal energy when they are absorbed into
body tissues. Because the heating causes the
tissue to expand rapidly, the expansion results
in a sound wave. However, the acoustic wave is
very weak and usually cant be detected by
typical ultrasound technology. The new ionizing
radiation acoustic imaging system developed by
the University of Michigan detects the wave with
an array of ultrasonic transducers positioned on
the side of the patient. An oncology clinic
could alter the level of trajectory of radiation
during the process, thanks to the images in-hand.
This would ensure treatments that are safer and
more effective.
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In the future, we could use the imaging
information to compensate for uncertainties that
arise from positioning, organ motion and
anatomical variation during radiation therapy,
says Wei Zhang, PhD, a research investigator in
biomedical engineering and the studys first
author. That would allow us to deliver the dose
to the cancer tumor with pinpoint accuracy. The
new technology can also be easily added to
current radiation therapy equipment without
changing the current processes that are used by
clinicians.
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Kyle Cuneo, MD, Associate Professor of Radiation
Oncology at Michigan Medicine said, In future
applications, this technology can be used to
personalize and adapt each radiation treatment to
assure normal tissues are kept to a safe dose and
that the tumor receives the dose intended. This
technology would be especially beneficial in
situations where the target is adjacent to
radiation sensitive organs such as the small
bowel or stomach.
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At Atlantis Worldwide, were always excited to
learn about emerging and new technologies and
treatments with medical imaging equipment. If
youre in need of additional medical imaging
equipment for your healthcare facility, talk to
the experts at Atlantis Worldwide. Contact Us
Today!
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