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Table 1 Detailed characteristics of arteriovenous malformations included into the study with respect to their volume and relation to the nearest organ at risk

From: Robotic radiosurgery versus micro-multileaf collimator: a dosimetric comparison for large or critically located arteriovenous malformations

Case Volume (cm3) Distance (mm) Nearest OAR Relation to OAR
1 29.30 9.4 chiasm neighboring
2 24.67 0 brainstem involving
3 22.93 0 optic nerve R encompassing
4 1.02 0 brainstem within
5 1.14 1 brainstem neighboring
6 4.72 0 brainstem involving
7 3.17 1.3 brainstem neighboring
8 5.62 1 brainstem neighboring
9 11.78 2.2 optic nerve R neighboring
10 13.66 0 brainstem involving
11 146.45 0 optic nerve L encompassing
12 17.76 0 optic tract R adjacent
13 9.05 0 brainstem, chiasm Involving brainstem, adjacent to chiasm
14 6.42 0 brainstem within
15 27.83 0 brainstem adjacent
  1. L -left, R – right, neighboring – the PTV is located at some distance from the nearest OAR, involving – the PTV is partially inside the nearest OAR, encompassing – the PTV surrounds the nearest OAR, adjacent – the PTV is in contact with the nearest OAR but does not surround or involve it, within – the whole PTV is inside an OAR.