August 21, 2017 — Accuray Inc. and the Summit Cancer Center-Boise announced that the center is now treating patients with the Radixact Treatment Delivery System, the next-generation TomoTherapy platform. The Radixact System replaced a competitive conventional linear accelerator in the single-vault freestanding facility.
The system provides precise and accurate treatments for more routine radiation therapy indications including skin, central nervous system, breast, head and neck, lung, prostate, gynecologic and gastrointestinal malignancies, in addition to more complex treatments such as craniospinal and total marrow irradiation. Additionally, Summit Cancer Center-Boise has the ability to perform stereotactic radiosurgery (SRS) and stereotactic body radiotherapy (SBRT).
"At Summit Cancer Center-Boise our goal is to use innovative technology to provide our patients with the treatment best suited to their needs. This system allows us to provide precise, individualized treatment while sparing normal tissues and maintaining optimal treatment efficacy," said John E. Gamboa, M.D., radiation oncologist, medical director of Summit Cancer Center-Boise.
The use of radiation as part of cancer treatment is increasing, both during initial treatment and increasingly for re-treatment, so the ability to deliver the correct dose precisely to the tumor is becoming even more important. The Radixact System was designed to deliver image-guided intensity-modulated radiation therapy, an extremely precise form of radiation therapy.
- The system is built on a ring gantry platform with a computed tomography (CT) scanner. It provides continuous delivery of radiation from 360 degrees around the patient, or delivery from clinician-specified beam angles, ensuring the most precise treatment customized for each patient, minimizing exposure to healthy tissue and measurably mitigating side effects;
- Treatment accuracy is achieved through daily 3-D image guidance, which ensures proper patient positioning and dose targeting even when anatomical changes occur. The system takes an image of the patient every day as part of the patient setup, enabling the clinical team to know exactly where the tumor is on that particular day;
- The ultra-fast binary multileaf collimator (MLC) is a key component of the system, enabling it to deliver dose with extremely high precision and accuracy;
- Continuous couch motion through the bore of the ring gantry facilitates seamless delivery to multiple targets or long volumes with no need for field matching, which would be required if using a conventional delivery device. This innovation in workflow also improves treatment quality by ensuring that highly-sculpted radiation doses can be delivered to tumors located anywhere in the body, regardless of the tumor size or the number of tumors receiving treatment;
- A fully-integrated, simplified adaptive treatment planning solution, PreciseART Adaptive Radiation Therapy software, enables the clinical team to adjust therapy to changes in tumor size, shape and location — as well as subtle changes in the location of organs and other healthy tissue; and
- The PreciseRTX Retreatment Option makes it easier for clinicians to deliver precise doses of radiation in those cases where, unfortunately, cancer has recurred and retreatment with radiation is necessary.
For more information: www.accuray.com
November 04, 2025 
