When looking at a single sagittal computed tomography image slice, what direction and/or directions are being observed?

You set up your head and neck patient, who is indexed, for the first day of treatment on the linear accelerator. The table parameters are the following: Vertical: 119.7 Longitudinal: 123.3 Lateral: 107.9 The oncologist wants to make some adjustments to the isocenter location. She wants the isocenter to be shifted: left 1.7  cm, posterior 2.3 cm, and superior 3.7 cm.  What are new table coordinates?

As a radiation therapist, you must assess the patient’s needs, recognize cultural differences, and respond to nonverbal communication before and during the simulation process. Which of the following would be considered an example(s) of assessment?

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?