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IM-RealART - Technical Specifications
The replanning process and the physics behind
Based on the diagnostic image quality of the CTVision in-room CT scanner, the replanning process can be performed quickly and accurately. The intelligent tools and advanced algorithms of IM-RealART™ Solution speed up plan adaptation and enhance plan quality. Data transfer to the delivery system works seamlessly – and treatment can start right away.
IM-RealART – six steps for accurate on-the-spot replanning
| On-the-spot replanning with IM-RealART |
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| 1. CT scan with CTVision |
| Compare shape and position of the anatomical structures to the original planning CT. |
| 2. Contouring |
| Generation of new contours is very fast and easy through dropping from the original planning CT, decimating and interpolating slides with drawing tablet and pen at every fraction to reduce delineation errors. |
| 3. Segment aperture morphing (SAM) |
| SAM algorithm calculates MLC morphing based on the Beam’s Eye Views (BEVs) of the new and old tumor shape. Stretching apertures is based on relative distance from edge of tumor projection. |
| 4. Segment weight optimization (SWO) |
| Based on dose constraints and user objectives, SWO modifies the segment weights using a unique optimization algorithm, to enhance plan quality. |
| 5. Dose distribution adaption |
| Dose distribution and Dose-Volume Histogram (DVH) are recalculated, followed by a dose review. |
| 6. Data transfer to linear accelerator |
| The new plan and MLC segments are transferred via the Oncology Information System (OIS) to ARTISTE or ONCOR. |
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