News | March 10, 2010

VMAT Proves Much Faster than IMRT at French Clinic

March 10, 2010 - While intensity modulated radiation therapy (IMRT) can create a treatment that maximizes dose to the target and minimizes dose to healthy tissues, it can lead to longer delivery times compared with standard radiation therapy. That is prompted several radiation therapy centers around the world to adopt volumetric modulated radiation therapy (commonly known as VMAT), in which a single or multiple radiation beams sweep in uninterrupted arc(s) around the patient, significantly reducing treatment times.

At the Clinique Claude Bernard’s Private Radiotherapy Center of Metz (PRCM) in Metz, France, which installed and started using the Elekta VMAT system, clinicians found the average VMAT was much faster than IMRT.

“After only five months we were using VMAT to treat an average of 70 patients per day in an 11 to 12-hour day. At six months, almost everything apart from breast cancer cases was being done with the VMAT technique. Most importantly, the reduction in the length of treatment sessions is striking when compared to standard IMRT. VMAT treatment session times averaged half as long as those of IMRT," said Guillaume Faure, M.D., co-director of radiation oncology at PRCM.

A VMAT treatment session consists of pre-treatment image guidance time, patient set-up time and “beam-on time,”—the latter is when radiation is applied to the target. Depending on several factors, pre-treatment image guidance and set-up times can lead to treatment sessions ranging from five to nine minutes. Therefore, PRCM adopted an average treatment session time of seven minutes for all cases. Because VMAT beam-on time for all indications measures in tens of seconds, it now contributes less significantly to the total treatment session time. At PRCM, average VMAT beam-on times for five major indications are: 102 seconds for head-and-neck; 98 seconds for brain; 81 seconds for rectum; 79 seconds for prostate; and 79 seconds for lung.

VMAT beam-on time across these five case types is just 88 seconds. Compared with total treatment session times for IMRT, an average VMAT treatment session (seven minutes) is typically twice as fast. Examples include prostate IMRT at 14 minutes; head and neck IMRT at 22 minutes and rectal IMRT at 11 minutes.

For more information: www.elekta.com

Related Content

News | Enterprise Imaging | November 14, 2018
Konica Minolta Healthcare Americas Inc. will showcase new features and tools for the Exa Enterprise Imaging platform at...
Deaconess Health System Chooses Sectra as Enterprise Imaging Vendor
News | Enterprise Imaging | November 02, 2018
International medical imaging information technology (IT) and cybersecurity company Sectra will install its enterprise...
Carestream Spotlights Healthcare IT and Imaging Systems at RSNA 2018
News | Information Technology | October 31, 2018
Carestream announced it will be displaying several imaging and healthcare information technology (IT) offerings at the...
Cullman Regional Medical Center

Cullman Regional Medical Center (Alabama) is a 145-bed medical center serving more than 175,000 residents in a six-county area and recognized as one of the region’s finest medical facilities.

Sponsored Content | Case Study | PACS | October 05, 2018
When Cullman Regional Medical Center in Alabama decided to switch from 2-D
Agfa Introducing New MUSICA Workstation at RSNA 2018
News | PACS Accessories | October 04, 2018
At the 2018 Radiological Society of North America (RSNA) annual meeting, Nov. 26-30 in Chicago, Agfa HealthCare will...
Intelerad Medical Systems Appoints New President and CEO
News | Enterprise Imaging | September 25, 2018
September 25, 2018 — Intelerad Medical Systems announced that following the retirement of Randall Oka, its board of d
Laurel Bridge Enables Healthcare Providers to Manage Image Archive Migrations and Consolidations
News | Enterprise Imaging | September 25, 2018
September 25, 2018 — Laurel Bridge Software announced improvements to their Exodus Migration and Consolidation Contro
Sponsored Content | Case Study | Information Technology | September 07, 2018
One of the Northeast’s major teaching hospitals is an international leader in virtually every area of medicine. It has...
Mount Sinai Serves as Official Medical Services Provider for 2018 U.S. Open
News | Orthopedic Imaging | September 06, 2018
For the sixth consecutive year, Mount Sinai will serve as the official medical services provider for the 2018 U.S. Open...