ATLANTA, Feb. 10, 2012 /PRNewswire/ -- The advanced functionality of Elekta's family of digital linear accelerators demands the highest degree of intelligent coordination. Elekta's latest control system, Integrity™ R1.1, meets this requirement through three tiers of safety, command of MLC interdigitation for exceptional field shaping, and support of virtually limitless options to adjust the radiation dose.
Integrity  R1.1 has undergone rigorous tests in eight international centers, which demonstrated safe reductions in treatment delivery times of as high as 30 percent. The receipt of 510(k) clearance for Integrity R1.1 enables U.S. medical centers to realize these treatment speed and safety benefits when Elekta begins delivery of the control systems.
"I appreciate the use of multiple measures to ensure correct treatment delivery," says Jonas Fontenot, Ph.D., physicist at Mary Bird Perkins Cancer Center (Baton Rouge, La.), which has been evaluating a previous release of Integrity since February 2011. "In addition, during Volumetric Modulated Radiation Therapy [VMAT], Integrity constantly captures delivery parameters and sends them back to our MOSAIQ® oncology information system , where they become part of the patient's electronic record."
Interdigitation and Continuously Variable Dose Rate (CVDR) boost efficiency
With interdigitation of MLCi2 enabled by Integrity R1.1, MLC capabilities have caught up with the ability of the treatment planning system to create fields with complex geometry. Because MLC leaves can move past one another – or interdigitate – clinicians can employ island fields in difficult cases, such as those involving multiple targets.
"Interdigitation is important for treating multiple targets – such as multiple brain mets – and also when there is a target geometry that consis