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GPS For The Prostate: System Keeps Radiation Therapy On Target
A system for tracking the movement of
the prostate during radiation therapy has gone into service at the Seattle
Cancer Care Alliance. Featuring tiny GPS-type positioning transponders
implanted inside the prostate, the technology tracks any movement of the
prostate in real time and alerts technicians if the organ moves beyond
pre-determined parameters so they can adjust the external beam of
radiation.
The advantage of using the system is that the radiation dose stays on
target and less of it reaches surrounding healthy tissue, which reduces
potential side effects. There is also the potential for using higher doses
of radiation to attack tumors precisely while reducing the amount of time
patients must undergo the procedure, according to Ken Russell, M.D.,
radiation oncology clinical chief at the SCCA and the University of
Washington.
"The purpose of radiation oncology is to accurately deliver the
treatment to the cancer and avoid as much as possible the normal nearby
organs," said Russell, who is also vice chairman of the UW Department of
Radiation Oncology. "The prostate is a moving target."
Calypso Medical Technologies of Seattle manufactures the system, which
is called the Calypso 4D Localization System. It consists of five
components that work together: electromagnetic transponders the size of a
grain of rice, a console the size of a large rolling suitcase, an
electromagnetic array to receive the transponder signals, a tracking
workstation and infrared cameras installed in the treatment room.
Three transponders are implanted during a 15-minute outpatient
procedure at the UW urology clinic. The process is similar to a
hollow-needle biopsy. The radiation treatment is done at the SCCA
outpatient clinic on the Fred Hutchinson Cancer Research Center campus at
South Lake Union.
About Seattle Cancer Care Alliance
Seattle Cancer Care Alliance, established in 1998, unites the adult and
pediatric cancer-care services of Fred Hutchinson Cancer Research Center,
UW Medicine and Children's Hospital and Regional Medical Center. A major
focus of SCCA is to speed the transfer of new diagnostic and treatment
techniques from the research setting to the patient bedside while providing
premier, patient-focused cancer care. Patients who come to SCCA receive the
latest research-based cancer therapies as well as cutting-edge treatments
for a number of non-malignant diseases under development by its partner
organizations. SCCA has three clinical-care sites: an outpatient clinic on
the Fred Hutchinson campus, a pediatric-inpatient unit at Children's and an
adult-inpatient unit at UW Medical Center. For more information about SCCA,
visit http://www.seattlecca.org.
Seattle Cancer Care Alliance
http://www.seattlecca.org
GPS-ul pentru prostatã: sistem de tine tratamentul radiologic, pe þintã - GPS For The Prostate: System Keeps Radiation Therapy On Target - articole medicale engleza - startsanatate