Sample interview questions: How do you ensure accurate patient positioning and immobilization during radiation therapy treatments?
Sample answer:
Accurate Patient Positioning and Immobilization in Radiation Therapy
Patient Alignment Verification:
- Image-Guided Radiation Therapy (IGRT): Uses real-time imaging to verify patient alignment and adjust positioning as needed.
- Cone-beam computed tomography (CBCT): Provides 3D images of the patient’s anatomy to ensure precise setup.
Patient Immobilization Devices:
- Body masks: Custom-molded devices that conform to the patient’s body and restrict movement.
- Head immobilization frames: Fix the head in place to minimize motion during treatments.
- Vacuum cushions: Provide additional support and reduce motion for certain body parts.
Patient Positioning Techniques:
- Laser alignment: Uses lasers to precisely align the patient’s body to reference points on the treatment machine.
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