News | October 24, 2012

Varian's Real-Time Tumor Tracking System Increases Accuracy for U.K. Prostate Patients

Varian Calypso GPS for the Body Radiation Oncology Tumor Localization Systems

October 24, 2012 — Clinicians at the Harley Street Clinic in London are using the Calypso GPS for the Body system from Varian Medical Systems to provide real-time tracking of tumors during prostate cancer radiotherapy treatments. The first such system to be installed in the United Kingdom, Calypso real-time tracking has been used to enhance the precision and quality of treatments for more than 20 prostate cancer patients at the clinic to date.

"This really is the gold standard for real-time tracking and we are finding that as patients learn about the system, an increasing number are requesting that we make use of Calypso transponders during their treatments," said Neil Livingstone, treatment superintendent. "We hope that an increase in precision may help minimize radiation to healthy tissue while giving our clinicians additional confidence to deliver higher doses."

At the Harley Street Clinic, clinicians are using the real-time tracking capabilities of Calypso to reduce the amount of healthy tissue exposed to the treatment beam. Three Calypso transponders are inserted into the prostate, where they provide continuous real-time information. The position of the markers is tracked continuously throughout a treatment session to help keep the beam on target. If the targeted area moves outside the treatment beam, the treatment is automatically halted.

Another benefit of the system, according to Livingstone, is that patients no longer need to be imaged on a daily basis, avoiding the need for additional X-ray exposure during conventional imaging.

Just as a GPS tracking system in a car can pinpoint where the car is at all times in relation to its destination, Calypso GPS for the body provides continuous real-time information as to the precise location of the prostate.  The prostate is not a stationary target. It can shift by as much as several millimeters during a radiotherapy treatment session. The Calypso system enables clinicians to track the prostate in real time during treatment, in order to help enhance treatment precision. There are more than 100 Calypso installations globally and more than 15,000 patients worldwide have been treated using the system.

A clinical study entitled, "Assessing the Impact of Margin Reduction (AIM)," published in the medical journal Urology, demonstrated that the use of Calypso real-time tracking during radiotherapy treatments for prostate cancer resulted in a significant reduction in the majority of serious treatment-related side effects that were studied. [1]

For more information: www.varian.com

[1] Sandler, Howard, et al. "Reduction in Patient-reported Acute Morbidity in Prostate Cancer Patients Treated With 81-Gy Intensity-modulated Radiotherapy Using Reduced Planning Target Volume Margins and Electromagnetic Tracking: Assessing the Impact of Margin Reduction Study." Urology 75 no. 5, (2010): 1004-1008.

 

 

Related Content

Videos | Radiation Therapy | November 15, 2017
Chris Toth, president, global commercial and field operations for Varian, takes a tour of Varian’s new product introd
Study shows tissue marker reduces radiation target volumes, produces many other advantages

These CT images show placement of a 3-D fixed array implanted fiducial (3-D marker) at the time of oncoplastic tumor resection. The original LCTV (LCTVo) was retrospectively re-contoured by the radiation oncologist (LCTVro) and breast surgeon (LCTVbs). Thereafter, both re-contours were combined to create the collaborative LCTV (LCTVc), which required agreement of both the radiation oncologist and breast surgeon. Volume differences between the original LCTV (LCTVo) and the collaborative LCTVc were then evaluated, and demonstrated a mean and median reduction in LCTV.

Feature | Tumor Tracking Systems | November 06, 2017 | By William Hall, M.D.
Radiation planning for breast cancer relies on accurate delineation of the post-lumpectomy target volume as identified...
Sam Hancock, Ph.D.

Sam Hancock, Ph.D.

Sponsored Content | Case Study | Radiation Oncology | November 06, 2017
In establishing the new Southeast Cancer Center (Cape Girardeau, Mo.), clinic officials not only had the opportunity to...
Proton therapy doesn’t get as near to the heart and other internal organs as X-ray therapy does. (Image courtesy of Provision Cares Proton Therapy Center.)

Proton therapy doesn’t get as near to the heart and other internal organs as X-ray therapy does. (Image courtesy of Provision Cares Proton Therapy Center.)

Feature | Proton Therapy | November 06, 2017 | By Larisa Brass, MPH
Thirty-three. Twenty-nine. Sixty-four. These are the ages of the breast cancer patients who have walked through the...
Videos | Women's Health | October 23, 2017
William Hall, M.D., radiation oncologist in the Department of Radiation Oncology at PeaceHealth St. Joseph Medical...
Pancreatic Cancer Outcome Highlights via On-table Adaptive MR-guided Radiation Therapy, MRI guided RT.
Sponsored Content | Webinar | Radiation Therapy | October 13, 2017
The webinar "Pancreatic Cancer Outcome Highlights via On-table Adaptive MR-guided Radiation" was presented by Parag P
Trends in contrast media used in magnetic resonance imaging and computed tomography

Image courtesy of Bayer

Feature | Contrast Media | October 04, 2017 | By Dave Fornell
Over the past decade, several clinical studies have shown gadolinium-based magnetic resonance imaging (MRI) contrast...
The forthcoming RayCare OIS from RaySearch will be web-based to more easily connect all members of the patient care team throughout a comprehensive cancer center

The forthcoming RayCare OIS from RaySearch will be web-based to more easily connect all members of the patient care team throughout a comprehensive cancer center.

Feature | Oncology Information Management Systems (OIMS) | September 08, 2017 | By Jeff Zagoudis
Cancer is perhaps the most highly personal, complex disease in our world today.
more healthcare providers and patients are choosing options such as Gamma Knife stereotactic radiosurgery
News | Radiation Therapy | July 31, 2017
Each year, up to 650,000 people who were previously diagnosed with various forms of cancer will develop brain...
El Camino Hospital to Offer Calypso 4-D Localization System
News | Radiation Therapy | July 21, 2017
El Camino Hospital (Mountain View, Calif.) announced the installation of a new Calypso 4-D Localization System and will...
Overlay Init