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TRILOGY SYSTEMAll In One. Best In One.Built on the solid foundation of the Clinac® iX platform, the Trilogy is a fast, versatile andcomprehensive delivery system. With the Trilogy system, clinicians can choosefrom a broad range of external beam therapies, including 3D CRT, IMRT, IGRT, or DART,as well as all intracranial and extracranial stereotactic techniques. The Trilogy system uses kV,MV and optical image guidance to pinpoint targets and verify treatment delivery; a dynamic,high-resolution MLC for exquisite beam sculpting; frame or frameless immobilization for patientpositioning and respiratory gating for perfectly timed beam delivery. What’s more, the Trilogysystem’s remote control robotics offer the highest level of efficiency and automation for themost sophisticated treatments.HIGHEST DOSE RATE. For shorter sessions.At 1000 monitor units (MU) per minute, the Trilogy system delivers a stereotactic doserate that is 20% higher than any comparable system, and twice as high as most linacs.A higher dose rate translates into shorter sessions, combining patient convenience andcomfort with higher throughput.TIGHT ISOCENTER ALIGNMENTS ON ALL THREE AXES. Targets the smallest lesions.Trilogy leads in beam accuracy for treating increasingly smaller tumors. On two axes(the gantry and the collimator), Trilogy's isocenter radius measures 0.5 mm or less.Add the third rotational axis (the couch) and the isocenter radius is 0.75 mm or less,the tightest alignment available in a dual-energy system.RAPID ON-BOARD IMAGING. Reposition patients faster and more accurately.With Trilogy's On-Board Imager kV imaging system, it's fast and easy to acquirekilovoltage images for high-precision repositioning of most patients. Daily online setupcorrections typically can be achieved in just a few minutes. Respiratory-gated radiographsand fluoroscopic verification let clinicians check patient position accuracy, even in the caseof tumors in motion.TRILOGY COMPONENTSDelivery System• The Trilogy configuration of the Clinac iX accelerator• Exact Couch• Millennium 120-leaf MLC with dynamicMLC capability• RPM respiratory gating system• LaserGuard collision detection system• 4D Integrated Treatment ConsoleImage Guidance• On-Board Imager patient positioningand targeting systemTreatment Verification and Quality Assurance• PortalVision aS1000 MV imager for treatmentverification• Portal Dosimetry for IMRT plan verificationDelivery Verification and Quality Assurance• Argus® Linac and Argus IMRT qualityassurance softwareStereotactic ComponentsThe Trilogy system is compatible with stereotacticcomponents from Varian and other vendors.Varian stereotactic components include:• Conical collimators• Stereotactic headring, CT localizer, andCouch Mount• Frameless stereotactic immobilization forintracranial treatments, including CT localizerand Couch Mount• Stereotactic treatment planning capability with120-leaf MLC and conical collimator• Optical positioning systemCONE-BEAM CT. Fine-tune patient setups with ultra-precise CT scans.With Trilogy's On-Board Imager, high-resolution cone-beam CT scans (3D volumetric images)can be acquired and used to correct patient positioning based on soft-tissue. Usingsophisticated image analysis tools, the cone-beam CT scans can be automatically matched toreference CT scans to fine-tune the setup of the patient.