Clinical Impact of Consolidative and Salvage Radiotherapy for Lymph Node Metastasis in Upper Urinary Tract Urothelial Carcinoma

Figure 2

Irradiation conditions for the lymph nodes. (a) Frontal view of CT image reconstruction; RF1 was set based on CTV1 and 2 as standard radiation. (b) Left anterior oblique view of CT image reconstruction; RF2 was set based on CTV2 as a radiation boost. CT: computed tomography, RF: radiation field, GTV: gross tumor volume, CTV: clinical target volume, Ao: aorta, IVC: inferior vena cava, Kid: right kidney, ob: obturator lymph node, ci: left common iliac lymph node, and pa: para-aortic lymph node.

(a) Standard

(b) Boost