News | February 24, 2011

New Zealand Hospital Shortens Prostate Cancer Treatment Times

February 24, 2011 – A cancer center in New Zealand has acquired several technology solutions that lets it cut prostate cancer treatment times in half per session. Clinicians at St. George's Cancer Care Centre in Christchurch, New Zealand, use Elekta technology to deliver prostate therapy.

Patients with prostate cancer typically are required to lie still for seven to eight minutes with a full bladder during a therapy session, a process repeated 37 times over a treatment course.

"We used a single non-stop arc of the radiation beam and just under three minutes of actual therapy time," said David McKay, principal physicist at St. George's. His is the second center in Australasia to use Elekta VMAT. “He is about three-quarters of the way through his treatment course and is doing very well."

The cancer center acquired two Elekta Synergy linear accelerators, Monaco treatment planning for Elekta VMAT and Mosaiq oncology information system.

"We wanted to offer the best possible treatment to our patients by using the most advanced technology available," MaKay said. "Elekta offered a full package that included the planning system, record-and-verify system and the linear accelerator. It was very appealing that we could get all that from one provider. It helps if the planning system and accelerator come from the same vendor – so that technology improvements in the linac are then reflected in the planning system more quickly. The communication between Mosaiq and the treatment planning and therapy systems also is critical to streamline information flow."

Since its first patient, St. George's has started its second prostate cancer patient on the therapy. For both patients, VMAT planned with Monaco has been successful, McKay said.

"The plans compare favorably with our IMRT plans, and using Monaco planning for the second patient, we developed a plan that shifted the radiation dose somewhat better around the rectum, which helped us avoid exposing it to an above-tolerance dose. The doctors were very pleased with that," he said. "Additionally, the Monte Carlo dose algorithm improves our ability to calculate the final patient dose, which helps us deliver the highest therapeutic dose confidently."

The Elekta Symmetry enables clinicians to reduce margins, account for baseline shifts and employ uninterrupted treatment delivery while the patient breathes freely.

Anticipating a greater volume of patients with lung cancer at the clinic, a team of clinicians, physicists and radiation therapists at St. George's has begun evaluating the 4-D imaging capabilities of Symmetry in select lung cancer patients.

"In a recent case, the radiation oncologist had created some standard margins around a tumor of a lung cancer patient scheduled for palliative treatment," McKay recalls. "We did a scan to observe the tumor motion and confirm the margins were satisfactory. We were quite surprised at how much movement the 4-D acquisition revealed in this case. The margins were just about adequate to cover the volume, but if there had been just a little bit more movement we would have had to re-plan the case. It was eye-opening. The 4-D capability is a useful feature that will help ensure the highest standard of care for our patients."

For more information: www.elekta.com

Related Content

SpaceOAR Hydrogel Now Available in Japan
News | Patient Positioning Radiation Therapy | July 16, 2018
Augmenix K.K. announced that SpaceOAR hydrogel, a soft, implanted absorbable gel spacer is now available to all...
RaySearch Releases New Version of RayCare OIS
Technology | Oncology Information Management Systems (OIMS) | July 13, 2018
RaySearch has released RayCare 2A, the latest version of its flagship oncology information system (OIS). RayCare is...
Lack of Insurance Coverage Delaying Proton Therapy Clinical Trials
News | Proton Therapy | July 12, 2018
Randomized clinical trials are the gold standard of cancer research and can shed light on whether innovative, new...
Bruce Power Joins Forces With ITM to Supply Lutetium-177 for Cancer Therapy
News | Radiation Therapy | July 11, 2018
Canadian nuclear power company Bruce Power and German-based Isotope Technologies Garching (ITG) signed an agreement to...
MedStar Georgetown University Hospital Now Clinical With RayStation and Hyperscan
News | Treatment Planning | July 05, 2018
MedStar Georgetown University Hospital in Washington D.C., has begun patient treatments using the RayStation treatment...
Northern Centre for Cancer Care (NCCC)

Northern Centre for Cancer Care (NCCC).

Sponsored Content | Case Study | Radiation Therapy | July 05, 2018
Established in 2009, Northern Centre for Cancer Care (NCCC) is the largest center of its kind in the north of England....
Researcher Investigates Eliminating Radiation for HER2-Positive Breast Cancer
News | Radiation Therapy | July 02, 2018
Researchers at The University of Kansas Cancer Center have launched a clinical trial that eliminates radiation from the...
New Prostate Cancer Radiotherapy Technique Aims to Preserve Sexual Function
News | Radiation Therapy | June 18, 2018
A multicenter clinical trial being led by UT Southwestern physicians is testing a technique for sparing nerve bundles...
Elekta Unity High-Field MR-Linac Receives CE Mark
News | Image Guided Radiation Therapy (IGRT) | June 18, 2018
Elekta announced that its Elekta Unity magnetic resonance radiation therapy (MR/RT) system has received CE mark,...
Washington University in St. Louis Begins Clinical Treatments With ViewRay MRIdian Linac
News | Image Guided Radiation Therapy (IGRT) | June 14, 2018
June 14, 2018 — The Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine in S
Overlay Init