RapidArc Technology Provides Faster, More Precise Radiotherapy to Fight Cancer
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RapidArc, a new approach to delivering high dose radiation
to tumors two to eight times faster than conventional methods,
is now available in the Department of Radiation Oncology at the University of Maryland Marlene and Stewart Greenebaum
Cancer Center (UMGCC).
Advantages for Patients
RapidArc, from Varian Medical Systems, is a major medical advance for treating certain types
of cancer with image-guided, intensity-modulated radiation therapy (IG-IMRT).
RapidArc is delivered using the Trilogy
linear accelerator, available at UMGCC since 2006.
RapidArc has several important advantages for patients:
Treatments are fast.
With RapidArc, IMRT treatments that typically require at least 10 minutes
can be completed in less than 2 minutes. That means more comfort and less
disruption for patients, because they spend less time in their daily treatments.
Patients can be in and out of treatment quickly and return to their daily
Treatments accuracy is increased. Faster RapidArc treatments mean less time that the patient must hold still, and therefore less chance of patient movement that could compromise treatment accuracy.
Higher doses of radiation are delivered to hit the tumor harder. RapidArc rotates 360 degrees around the patient, enabling the very
small beams with varying intensity to be aimed at the tumor from multiple
angles. Unlike other forms of radiation therapy, with RapidArc the radiation
treatment being delivered to the patient can be modulated continuously throughout
treatment resulting in less radiation exposure to surrounding healthy tissue.
More precise imaging helps target the dose.
RapidArc incorporates technology that makes it possible to position the patient
for treatment with sub-millimeter accuracy. An on-board imaging system provides
high-resolution X-ray images of the targeted area just before each daily treatment.
Our Expertise: RapidArc Invented by UM Scientist
RapidArc technology was originally invented by Cedric
X. Yu, D.Sc., Mansfield Professor of Radiation Oncology at the
University of Maryland School of Medicine and member of the radiologic
physics team in the Department of Radiation Oncology at the University of
Maryland Marlene and Stewart Greenebaum Cancer Center.
Dr. Yu’s research in developing new techniques for radiation therapy
delivery has led to a number of important advances in the field in addition
to RapidArc. Innovations such as intensity-modulated arc therapy (IMAT),
which he invented in 1995, and Direct
Aperture Optimization (DAO), an enhancement of IMRT therapy that Dr. Yu
helped develop, have led to significant improvements in the care of patients
To learn more about RapidArc or other radiation therapy treatment options available at the University of Maryland Greenebaum Cancer Center, please call the Department of Radiation Oncology at 410-328-6080 or 1-800-888-8823.