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On-Board Imager® (OBI)

The Varian On-Board Imager® (OBI) kilovoltage (kV) imaging system is a high-resolution, low-dose digital imaging system that makes image-guided radiation therapy (IGRT) more efficient and convenient. The On-Board Imager tools enable clinicians to quickly acquire high-quality online images, identify differences in patient positioning, and apply corrections before or during treatments without the therapist having to re-enter the treatment room.