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IM-Confident Plan - Technical Specifications
IM-Confident Plan – the process and the physics behind
Direct Aperture Optimization (DAO) and Direct Machine Parameter Optimization (DMPO) are techniques that simultaneously optimize the shapes of the leaves and the relative weights of the individual apertures. As a result, the leaf-sequencing step is eliminated with IM-Confident™ Plan. This approach combined with the unique performance of Siemens' 160MLC enables you to speed up quality.
** Panther DAO IMRT – a product of Prowess Inc.
** p³IMRT – a product of Philips Medical Systems
Eliminating the leaf-sequencing step
Without IM-Confident Plan, the leaf-sequencing algorithm would translate each intensity map into a set of deliverable aperture shapes. With DAO and DMPO, the user prespecifies the number of apertures that have to be delivered from each beam direction. The resulting plans are much more efficient and drastically decrease the treatment time. DAO and DMPO use different optimization algorithms (DAO: simulated annealing – DMPO: gradient method). The user prespecifies
- Delivery angles
- Number of apertures per beam
- Treatment goals
- Calculates pencil beams
- Performs optimization
- Outputs the final plan
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