Question 1

Which of the following is a process that aligns multiple data sets into a single coordinate system so that the spatial locations of corresponding points coincide?

Accepted Answer

Registration is the process that aligns multiple data sets into a single coordinate system so that the spatial locations of corresponding points coincide.

Question 2

Cone beam CT _______________________.

Accepted Answer

CBCT has an area detector that is a 2D extended digital array.

Question 3

Image-guided radiation therapy is useful because it can ____________________.
I.result in a more focused treatment
II.account for interfraction and intrafraction motion
III.compare in-room image set with treatment planning image set

Accepted Answer

IGRT is being developed to allow for all three of the answers presented, as studies have now been conducted showing not only tumor motion during treatment but also critical organ motion.

Question 4

The typical width of the spread-out proton Bragg's peak (SOBP)is _____________.

Accepted Answer

Typically, the widths of the SOBPs can vary, such as 2 to 16 cm.

Question 5

Which of the following is the only approach to managing motion that allows for real-time feedback?

Accepted Answer

Electromagnetic transponder provides real-time feedback; the target isocenter can be monitored up to 10 times per second.

Quiz 15: Special Procedures

Which of the following is a process that aligns multiple data sets into a single coordinate system so that the spatial locations of corresponding points coincide?

Cone beam CT _______________________.

Image-guided radiation therapy is useful because it can ____________________. I.result in a more focused treatment II.account for interfraction and intrafraction motion III.compare in-room image set with treatment planning image set

The typical width of the spread-out proton Bragg's peak (SOBP) is _____________.

Which of the following is the only approach to managing motion that allows for real-time feedback?