Technology | August 06, 2013

CIRS Introduces New End-to-End QA Tool for Stereotactic Radiosurgery Systems

CIRS announces Stereotactic End-to-End Verification Phantom at AAPM Annual Meeting

Cirus Inc. STEEV QA System Radiosurgery Radiation Therapy Phantom

August 6, 2013 — CIRS will introduce the Stereotactic End-to-End Verification Phantom (STEEV) at the 55th Annual AAPM Meeting and Exhibition on August 4 to 8 in Indianapolis.

CIRS Stereotactic End-to-End Verification Phantom (STEEV™) shown with 12 optional inserts.

STEEV is a QA tool for evaluating stereotactic radiosurgery (SRS) system performance during commissioning and daily systems checks. To facilitate patient QA, STEEV serves as a surrogate patient to assess every step of the treatment process- from immobilization and multi-modality imaging (computed tomography (CT), magnetic resonance imaging (MRI), positron emission tomography (PET)) to thorough treatment plan verification. STEEV's anthropomorphic, tissue-equivalent design makes it the only phantom to account for the challenging effects of tissue heterogeneity.

SRS is a non-invasive procedure that focuses high doses of radiation to destroy tumor volumes in small areas of the body. The procedure necessitates a high degree of accuracy in target localization and dose delivery, because small errors can result in significant under treatment of portions of the tumor volume or overdose of nearby healthy tissues. By providing challenging system checks, STEEV helps to identify system errors and ultimately leads to better patient outcomes- a key component to CIRS' company values.

The introduction of STEEV compliments CIRS' existing suite of site-specific end-to-end QA phantoms, including the Dynamic Thorax Phantom, Dynamic Pelvis Phantom and SBRT Thorax Phantom.

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