=====Volume===== Quantity of three-dimensional space enclosed by some closed boundary, for example, the space that a substance (solid, liquid, gas, or plasma) or shape occupies or contains. [[Blood volume]] [[Cerebral blood volume]] [[Hematoma volume]] [[Intracerebral hemorrhage volume]] [[Relative cerebral blood volume]] [[Target volume]] [[Tumor volume]] [[Volume rendering]] [[Volumetric segmentation]]