Figure 4

Three ventilation points of interest are shown, including high (HHV) and low (HLV and LLV) ventilation regions. HHV and LLV showed no ventilation change pre- to post-RT but HLV showed ventilation decline following treatment.

Three ventilation points of interest are shown, including high (HHV) and low (HLV and LLV) ventilation regions. HHV and LLV showed no ventilation change pre- to post-RT but HLV showed ventilation decline following treatment.