Elekta’s new radiosurgery system shows radiation dosage benefits

Elekta has highlighted data from a multi-institutional radiotherapy planning study that underlines the benefits of its Leksell Gamma Knife Perfexion radiosurgery system.

The research compared the performance of Gamma Knife with three advanced contemporary linear accelerator-based stereotactic radiosurgery systems, finding that Elekta's offering provided various advantages.

Patients who needed radiotherapy for the treatment of multiple brain metastases were shown to receive as much as a 74 percent lower radiation dose to their normal brain tissue when lesions were treated with Elekta's product.

Perfexion was also shown to offer other advantages, such as providing the highest dose conformity, as well as being associated with the least amount of physics and quality assurance work and treatment planning effort.

University of California San Francisco physicist Dr Lijun Ma said: "Although Perfexion had a longer beam-on time than all the other modalities, the frame-based nature of Gamma Knife radiosurgery greatly reduces patient set-up time and treatment planning time can also be significantly shorter."

Elekta provides oncology and neurosurgery solutions for use in 6,000 hospitals globally. Earlier this year, it helped to test the world’s first high-field magnetic resonance imaging-guided radiation therapy system.