Beam delivery – wide range of noncoplanar angles

Beam energy – multiple energy (photon)

Collimation – MLC

Design – image-guided robotic linac that combines high-conformance beam shaping with 4D Adaptive™ IGRT technology

Dose delivery – multiple energy choices

Imaging – CT/MR imaging with patient in immobilization (no fiducials necessary)

Patient Positioning/Localization – BodyFIX dual vacuum-activated immobilization and fixation system; automatic reposition in up to 6 degrees of freedom

Treatment Sessions – single and fractionated

Beam delivery – noncoplanar and nonisocentric; anterior beam delivery

Beam energy – 6 MV nominal (photon)

Collimation – 12 fixed apertures; Xchange™ Robotic Collimator Changer automatically exchanges collimators

Design – a treatment radiation generator, linear accelerator, manipulator (robot) with six degrees of freedom, and a target locating subsystem

Dose delivery – A 6 MV X-band linac

Field size – determined by the use of interchangeable secondary circular cones with diameters ranging from 5.0 to 60.0 mm

Imaging – continuously delivers imaging to ensure target accuracy throughout the entire treatment; InTempo™ Adaptive Imaging System tracks and corrects for intra-fraction prostate motion

Output – available at 800 MU/min at 80 cm, 600 MU/min, and 400 Mu/min

Patient Positioning/Localization – only radiosurgery system to move to and with the patient; room-based stereo x-ray with 2D kV-kV match

Tracking – Fiducial tracking, Xsight™ Spine Tracking, Xsight™ Lung Tracking, and Synchrony™ Respiratory Tracking for dynamic positioning and pointing of the linac

Treatment Sessions – single and fractionated

Beam delivery – 192 cobalt-60 sources housed in the central body of the unit produce 192 collimated beams directed to a single focal point (isocenter)

Collimation – 4,8, 16 mm diameter

Design – a radiation unit with patient-positioning system and an operator console

Dose delivery – multiple converging fixed beams of ionizing radiation

Imaging – MRI/CT prior to treatment

Output – >3 Gy/min

Patient Fixation – head fixated in the Leksell® Stereotactic Frame. Awaiting approval on re-locatable frame.

Total cobalt-60 activity at loading (approximate) – <6,300 Curie (2.33 × 10¹⁴ Bq)

Treatment Sessions – single with availability of fractionated upon approval of Extend™ program

Beam delivery – Gimballed x-ray irradiation offers tilt and pan-rotation functions enabling fine adjustments in any direction

Collimation – MLC

Design – O-ring-shaped mechanical structure provides a high level of rigidity; X-ray generator incorporates a compact accelerator tube

Image Processing System – ExacTrac 3rd Party by BrainLAB (K072046 approved by FDA on 8/07)

Treatment Sessions – single and fractionated

Accuracy - millimeter precision utilizing BrainLAB’s iPlan and ExacTrac technologies

Beam delivery – fixed beam positions and continuous arc delivery with RapidArc; anterior beam delivery and full 180 degree posterior beams

Beam energy – 6–20 MV/6–20MEV

Collimation –Varian’s HD120 MLC 120 interleaved ultra thin collimators provides 2.5 mm collimation at isocenter and 5.0 mm collimations at the periphery.

Design – includes Adaptive Gating and On-Board Imager devices

Field size – 22 × 40 cm maximum

Imaging – ExacTrac and x-ray 6D and Snap Verification

Output – 1,000 MU at 100 cm

Patient positioning/localization – 6D Robotic couch top, Varian Exact^® couch

Treatment Sessions – single and fractionated

Beam energy – 6 MV (photon)

Collimation – 160 leaf MLC

Design – includes an Electronic Portal Imaging Device (EPID), a 160 leaf MLC, and the syngo™ RT Therapist Express Workspace with MVision™

Imaging – OPTIVUE 1000ART amorphous silicon (a-Si) portal imaging system

Patient-positioning verification – use of the OPTIVUE imaging system, including MVision™ Megavoltage Cone Beam (MVCB) Imaging and/or CTVision

Respiratory Gating – ANZAI breathing belt system

Beam energy – 6/10 MV photon/6–21 MeV

Collimation – OPTIFOCUS 82 leaf MLC (static and dynamic modes)

Field size – 40 cm × 40 cm fully-conformal

Imaging OPTIVUE 1000/ST electronic portal imaging device (EPID) and MVision™ megavoltage cone beam on-board imaging

Output – 200–500 MU/min, special configuration-1,000 MU/min for maximum 5 × 5 cm field (Avant-Garde); 200–300 MU/min, special configuration-500 MU/min for maximum 5 ×5 field

Patient position localization and setup – Adaptive Targeting™ supports alignment of 3D planning data with newly acquired 3D Cone Beam data

Respiratory Gating – standard on Avant-Garde/optional on Impression

Beam delivery – a 62 cm treatment head in combination with industry best isocenter clearance allows for a wide variety of treatment approaches including noncoplanar

Beam energy – 4, 6, 10, 15, 18, and 25 MV photon; 6, 9, 12, 15, 18, and 25 MeV

Collimation – Beam Modulator, an integrated high-resolution, multi-leaf collimator designed for extracranial SRS

Dose delivery system – includes an integrated multi-leaf collimator

Field size – 16 cm × 21 cm

Imaging – 4D Adaptive™ IGRT technology

Patient positioning/localization – BodyFix® and HeadFix® immobilization accessories

Treatment Sessions – single and fractionated

Accuracy – beam modulating technology that divides a single beam into “beamlets” to better conform to tumors

Beam delivery – 360 degree

Beam energy – 6 MV (photon)

Collimation – 64 leaf MLC

Design – linac mounted to a CT scanner-like ring gantry

Field size – 40 cm × 1.6 meters maximum

Imaging – integrated, 3D daily CTrue™ imaging

Output – 850 cGy/min (photon)^*

Patient positioning/localization – AlignRT® (consisting of 2 ceiling- mounted 3D camera units) registers real-time image data and subsequently updates couch coordinates. Complements CTrue™ imaging when tumor is deep-seated or can move internally w/o external evidence

Treatment Sessions – single and fractionated

Accuracy – beam modulating technology that divides a single beam into “beamlets” to better conform to tumors

Beam delivery – choice of Intensity modulated radiosurgery (IM-RS) with multi-leaf collimation – for lesions >2.5 cm, irregular shaped and >3 lesions OR Cone-based SRS for lesions <2.5 cm, not irregular and 1–3 lesions

Beam energy – 6 MV (photon)/4–22 MeV (6 energies)

Collimation – 120 leaf MLC and conical collimator

Design – external system gating interface, remote couch motion

Field size – 15 cm × 15 cm

Imaging – PortalVision MV imager, On-Board kV Imager (amorphous silicon detector-based radiographic, fluoro and cone-beam CT).

Output – 1,000 MU/min (photon and electron)

Patient position/localization – optional optical imaging-based patient positioning (FrameArray, BodyArray, and SonArray)

Respiratory Gating – Real-time Position Management™ (RPM) System

Treatment Sessions – single and fractionated