1) IGRT uses cone beam CT (CBCT) imaging to improve patient positioning accuracy and account for interfraction motion, allowing for dose escalation and hypofractionated treatments. 2) Respiratory gating uses external surrogates and binning to characterize tumor motion over the respiratory cycle and gate treatment to specific phases to reduce motion-induced targeting errors. 3) The combination of IGRT and respiratory gating can help oncologists see and hit moving tumors, enabling safer dose escalation for treatments like SBRT.