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Comparison of target dose coverage between multifraction and single-fraction magnetic resonance-guided SABR. (a) Planning target volume (PTV) V95% is significantly greater for the multifraction plan but (b) optimized PTV (PTVopt) V95% is not significantly different. Red line denotes the median, and the edges of the box are the 25th and 75th percentiles; the whiskers extend over mean ± 2.7 × standard deviation, and open circles denote each of the 20 oligometastases cases analyzed.
