Chapter 22 Review Questions Flashcards
Presimulation planning is important because it:
a. will involve determining patient positioning and the selection or preparation of immobilization devices.
b. will help determine the patient’s separation.
c. will be helpful in determining any radiographic exposure techniques used during simulation.
d. will involve the patient and his or her family in the treatment process.
a. will involve determining patient positioning and the selection or preparation of immobilization devices.
The GTV treatment volume will contain:
a. tumor.
b. involved lymphatics.
c. normal tissue.
d. all of the above.
a. tumor.
______________ is the initial phase of treatment planning in which actual visualization of the treatment volume is documented before treatment.
a. Initial consultation
b. Simulation
c. Brachytherapy
d. Radiation treatment
b. Simulation
With PET scanning ___________________is utilized to create the image
a. kV x-rays
b. 511-keV gamma rays that move in almost opposite directions
c. 6 MV gamma rays
d. magnetic pulses
b. 511-keV gamma rays that move in almost opposite directions
Which of the following is not a desirable quality of an effective and useful immobilization device?
a. Ensures immobilization with minimal patient discomfort.
b. Requires additional setup time.
c. Is durable enough to withstand the entire treatment plan.
d. Achieves conditions prescribed in treatment plan.
b. Requires additional setup time.
Patient immobilization is important because:
a. sophisticated treatment planning techniques allow more accurate delivery of treatment.
b. missing the tumor once or twice in a treatment course can reduce the planned dose by 10% or more.
c. daily reproduction of the planned treatment is essential to treatment outcomes.
d. all of the above.
d. all of the above.
Contrast media may be given to patients with a brain tumor:
a. 10 minutes before scan.
b. immediately before the scan.
c. the day before the scan.
d. time does not matter.
a. 10 minutes before scan.
The no-shift method of simulation includes all of the following except:
a. the physician determines the isocenter location after the patient has completed the simulation process.
b. the patient is tattooed at the isocenter.
c. moveable lasers are used to mark the isocenter.
d. the virtual simulation workstation is used.
a. the physician determines the isocenter location after the patient has completed the simulation process.
Respiratory gating used during CT simulation consists of recording the patient’s breathing pattern and scanning:
a. at full exhalation.
b. with a fast pitch during the entire breathing pattern.
c. at full inhalation.
d. with a slow pitch during the entire breathing pattern.
d. with a slow pitch during the entire breathing pattern.
In 4D CT the fourth dimension is:
a. motion.
b. left/right.
c. up/down.
d. in/out.
a. motion.
