News | July 28, 2008

Hospital Compilies Best-Fit Parameters for Treatment System

July 29, 2008 - One of the pioneering machines in image-guided radiation therapy (IGRT) has begun to mature, with over 1,000 treatments at one Oklahoma hospital alone.

The hospital's staff has generated best-fit parameters from this voluminous data set.

In 2003, the TomoTherapy Hi-Art treatment system became one of the first to combine intensity modulated radiation therapy with CT scanning to ensure that the patient is well-positioned to receive the highly-sculpted beam energy. One of the specifications that makes the TomoTherapy hardware unique is that radiation is applied by a constantly rotating beam through which the patient advances on a slow-moving couch. The result is a helically-shaped radiation delivery.

Even though the TomoTherapy system is more automated than traditional treatment plans, the user must choose parameters such as beam size, delivery modulation, gantry rotation speed, and how fast the couch moves. As the technology is still fairly new, not many medical physicists are very familiar yet with what values to use.

But Dr. Allen Movahed ([email protected]) and his fellow staff are highly experienced with TomoTherapy planning parameters, seeing as the Cancer Treatment Center in Tulsa, OK, where they work has two of the machines. Ninety percent of the hospital's 70 radiation treatments per day are performed on a TomoTherapy machine. Dr. Movahed says the reason is that the helical radiation delivery provides better tumor coverage and depending on the shape and location of the tumor even less time than other radiation therapy technologies.

Dr. Movahed and colleagues have compiled a list of best-fit parameters that draw from their own trial and error with the TomoTherapy machines.

The procedures covered include prostate, lungs, brain, liver, head & neck, breast, pelvis and pancreas.

For more information: www.aapm.org

Source: American Association of Physicists in Medicine

Related Content

Elekta Introduces Strategy for Precision Radiation Medicine at ASTRO 2018

Elekta SmartClinic is one of the key features in the Mosaiq Plaza suite of data-focused integrative oncology software

News | Radiation Therapy | October 30, 2018
At the American Society for Radiation Oncology (ASTRO) Annual Meeting, Oct. 21-24 in San Antonio, Elekta introduced the...
ViewRay and Miami Cancer Institute Host Symposium on MR-Guided Radiation Therapy
News | Image Guided Radiation Therapy (IGRT) | October 05, 2018
October 5, 2018 — Leading oncology experts from around the world recently met to discuss the integration of...
Turkish Hospital Begins MR-Guided Radiation Therapy With Viewray MRIdian Linac
News | Image Guided Radiation Therapy (IGRT) | September 21, 2018
ViewRay Inc. announced that Acibadem Maslak Hospital in Istanbul, Turkey has begun treating patients with ViewRay's...
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
ViewRay Unveils New Soft Tissue Visualization Technologies for MRIdian Linac
News | Image Guided Radiation Therapy (IGRT) | April 30, 2018
ViewRay Inc. announced new magnetic resonance imaging (MRI) technologies under development for its MRIdian Linac...
​ITN Celebrates World Cancer Day 2018
News | Radiation Oncology | February 01, 2018
World Cancer Day takes place annually on Feb.