Generally,which term would describe the largest volume of tissue in the patient planning process according to ICRU Report 50?

Question

Quizplus · Accepted Answer

There are several definitions related to the patient planning process provided by the International Commission on Radiation Units and Measurements (ICRU)in an effort to standardize radiation therapy terminology.PTV indicates the CTV plus margins for geometric uncertainties,such as patient motion,beam penumbra,and treatment setup differences.This is the largest volume,when comparing GTV,CTV,and PTV.

Generally,which Term Would Describe the Largest Volume of Tissue in the Patient