Introduction to Radiotherapy Techniques

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Questions and Answers

Which modality of radiation therapy involves scanning patients using beams combined with image guidance technology to target tumors accurately?

  • Tomotherapy (correct)
  • Cyberknife
  • VMAT
  • 3DCRT

What are the common toxicities associated with radiation therapy?

  • Chemo brain and hair loss
  • Anemia and fatigue
  • Early and late toxicities (correct)
  • Nausea and vomiting

Which type of radiation therapy is a very precise form of radiotherapy?

  • Brachytherapy
  • Stereotactic radiotherapy (correct)
  • 3DCRT
  • IMRT

What is the range of energies for photons used in external beam radiation therapy?

<p>6, 9, 12, 16 MV (A)</p> Signup and view all the answers

What is the main goal of tomotherapy in radiation therapy?

<p>Minimizing damage to nearby healthy tissue (D)</p> Signup and view all the answers

What is the primary goal of the simulation process in radiation therapy?

<p>Determining the optimal patient position and beam angles (A)</p> Signup and view all the answers

Who is responsible for specifying all aspects of the simulation, including position, immobilization, and bolus?

<p>The physician (B)</p> Signup and view all the answers

What is the main purpose of immobilization in radiation therapy?

<p>To reduce intrafraction target motion (A)</p> Signup and view all the answers

What factor does the simulation process aim to maximize in order to improve treatment outcomes?

<p>$\frac{\text{Target}}{\text{avoidance structure ratio}}$ (B)</p> Signup and view all the answers

What is unique about the setup process during simulation in radiation therapy?

<p>It is tailored to each patient's specific needs, tumor site, and stage (B)</p> Signup and view all the answers

What is the primary goal of the simulation process in radiation therapy?

<p>Determining the optimal patient position and beam angles (C)</p> Signup and view all the answers

Who is responsible for specifying all aspects of the simulation, including position, immobilization, and bolus?

<p>The physician (C)</p> Signup and view all the answers

What is the main purpose of immobilization in radiation therapy?

<p>To minimize patient movement and ensure accurate treatment delivery (B)</p> Signup and view all the answers

What factor does the simulation process aim to maximize in order to improve treatment outcomes?

<p>Target/avoidance structure ratio (A)</p> Signup and view all the answers

Which modality of radiation therapy involves scanning patients using beams combined with image guidance technology to target tumors accurately?

<p>$n(x) = x^3 - 2x^2 + 5x - 4$ Tomotherapy (C)</p> Signup and view all the answers

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