SRS planning
Also written as: SRS — Stereotactic Radiosurgery planning
The treatment planning process for high-precision, single-fraction radiation therapy using multiple convergent beams.
Full Definition
Stereotactic Radiosurgery (SRS) planning involves the detailed design and optimization of single-session, high-dose radiation treatments delivered with sub-millimeter accuracy. SRS planning requires stereotactic imaging with rigid immobilization, precise target definition, and sophisticated dose calculation algorithms to create steep dose gradients that maximize tumor dose while minimizing normal tissue exposure. Planning considerations include conformity indices, gradient indices, and critical structure dose limits specific to single-fraction delivery. Modern SRS planning utilizes multiple non-coplanar beams, dynamic conformal arcs, or volumetric modulated techniques to achieve optimal dose distributions.
Usage
Usage note: Use 'SRS planning' for single-fraction treatments; 'SBRT planning' for fractionated stereotactic treatments
In Context
- "SRS planning achieved 95% target coverage while limiting brainstem dose to 12 Gy." — Treatment planning report
- "The SRS planning system generated a conformity index of 1.2 for the acoustic neuroma." — Plan evaluation documentation