Lightning can be used to do most of the heavy-lifting, with the final ‘sculpting’ and optimization of the dose distribution being hand-crafted by the medical physicist, neurosurgeon or radiation oncologist.
The next-generation treatment optimizer
Meeting the increased demand for automated and personalized intracranial SRS
Automated planning
Dose optimization at lightning speed
Dose to targets can be optimized very quickly using highly efficient BOT penalties. This results in expertly built plans in less than a minute, providing significant savings in the duration of treatment.
Constraints-based optimization
Multiple and simultaneous hard constraints, such as dose to target and sparing of organs-at-risk (OAR), are introduced for the first time in a practical setting. This facilitates planning for multiple targets and OAR in a single plan, thereby saving a significant amount of planning time.
Multiple plans in less than a minute
Lightning creates high quality conformal plans, with the additional benefit of better BOT control. Each plan with different objectives can be created in less than a minute per plan. This makes it easy to compare plans and choose the most appropriate plan for the patient.


Assured quality
Designed to ensure even novice users can create high quality plans quickly and consistently
Simplifying SRS treatment planning
Supporting clinical decision making

We are very confident that the algorithm produces very accurate plans. There is very little or no adjustment needed usually and we are very happy with the quality of the plans.

Accelerated treatment
Leksell Gamma Knife Lightning facilitates the reduction of treatment delivery times


Potential to deliver plans up to 50% faster*
The ability to apply a BOT penalty when planning synchronizes the BOT of each sector in the Gamma Knife while prioritizing multiple shots in the same isocenter location. This automatic optimization of shot and sector delivery creates a treatment plan with the most efficient delivery parameters, leading to shorter treatment times.
*Sjölund, J., Riad, S., Hennix, M. and Nordström, H. (2019), A linear programming approach to inverse planning in Gamma Knife radiosurgery. Med. Phys., 46: 1533-1544. doi:10.1002/mp.13440
Integrated and seamless workflow
Efficient workflows complement the treatment planning tools already available in Leksell GammaPlan®.
Increased operational efficiency
Workflow improvements provided by Lightning mean that the operational time per patient is optimized at every step of the treatment process, ensuring a highly efficient SRS program.
The optimizer enables reduced BOT while maintaining or even enhancing the plan quality compared to forward plans with automated shot optimization.

A simple solution for accelerated radiosurgery
80% reduction in planning time*
50% reduction of beam-on-time*
Easy to use interface and quick optimization
Personalized treatments for each patient
*Sjölund, J., Riad, S., Hennix, M. and Nordström, H. (2019), A linear programming approach to inverse planning in Gamma Knife radiosurgery. Med. Phys., 46: 1533-1544. doi:10.1002/mp.13440
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