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Frame-based stereotactic Radiotherapy
•
A! stereotac9c! system! of!
external2 coordinates2
used! for!
localisa9on!and!posi9oning!
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The!pa9ent!is!rigidly!fixed!to!a!stereotac9c!system!using!
invasive!techniques,!
ideal2for2single2frac0on2
x-Position
z - Position