Extra Credit IGRT Module: The MV unit uses the treatment beam to acquire the portal image, therefore enabling the radiation therapist to do which of the following?

_________________complex immobilization devices, such as thermoplastic immobilization devices and foaming agent devices, to the treatment couch will provide for “tighter” tolerance settings.

The number of images generated by a computed tomography scan is determined by the

Which of the following International System of Units (SI) measurements is associated with monitoring of radiation therapy staff?

When treating the pancreatic head on a patient who has had a Whipple procedure. Which of the following would be the least radioresistant for three-field, non-IMRT, pancreatic head cancer? 

Which of the following cancers will not metastasize to the lung and liver only? 

The patient is correctly set up and verified at the isocenter and the SSD’s are not what are planned.  What could possibly make this happen? 

When a radiation dose is fractionated

Extra Credit: IGRT Module Prior to simulating the patient, which of the following should you do before the patient enters the CT simulation room? 1. Obtain a patient history 2. Check for contraindications for usage of contrast 3. Speak to the radiation oncologist 4. Fabricate immobilization devices 5. Speak with the medical dosimetrist    

When treating urinary bladder cancer, which of the following would not be a dose-limiting structure?