MEDRADSC 3S03 Lecture Notes - Lecture 8: Spinal Cord, International Commission On Radiation Units And Measurements, Comorbidity
4 Jan 2017
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Document Summary
A quantitative tool that provides information on the distribution of dose in graph format. Condensed from 3d dose distributions in 2d format. Planner must ensure entire area of interest lies within calculation window: if not, dose will not be reported for voxels outside window, could seriously misrepresent dose in volume for that structure. Post-processing to clean up conform to the actual structure accurately. Doesn(cid:495)t indicate where the dose is located (lacks spatial resolution) Does not indicate whether many small section, or one larger one: need to also assess through visual dose display. What do td5/5 and td50/5 mean: probability of 5% complications within 5 yrs post trt, probability of 50% complications within 5 yrs post trt. Follow-up and track with pt over 5 years: collect the population and predict the risk of different complications, 50% is not a acceptable risk more for palliative patients, determine what are acceptable doses on typical trx plan.
