Radiotherapy Technologist Interview Questions and Answers

Conducting CSI treatment involves precise planning, imaging, and delivery of radiation to the craniospinal axis.

• 1. Patient positioning: Ensure the patient is properly aligned using immobilization devices.

• 2. Imaging: Perform CT or MRI scans to delineate the target area and critical structures.

• 3. Treatment planning: Utilize software to create a radiation plan that targets the craniospinal axis while sparing healthy tissue.

• 4. Quality assurance: Verify the treatment plan through ...read more

A Linac accelerator is a medical device that uses high-energy radiation to treat cancer by targeting tumors precisely.

• Linac stands for Linear Accelerator, which accelerates charged particles like electrons.

• It generates high-energy X-rays or electrons for radiation therapy.

• The device consists of a series of components including a waveguide, electron gun, and treatment head.

• Linacs can deliver radiation in various techniques, such as 3D conformal radiation therapy and intensity-...read more

New treatment techniques include Gating, which involves synchronizing radiation delivery with patient's breathing.

• Gating is a technique used in radiation therapy to minimize damage to healthy tissue by synchronizing radiation delivery with patient's breathing.

• It involves using a device to monitor patient's breathing and adjusting the radiation beam accordingly.

• Other new treatment techniques include proton therapy, stereotactic radiosurgery, and intensity-modulated radiation t...read more

Radiation therapy targets cancer cells, damaging their DNA to inhibit growth and promote tumor shrinkage.

• Radiation therapy uses high-energy particles or waves to destroy cancer cells.

• It can be delivered externally (external beam radiation) or internally (brachytherapy).

• Radiation damages the DNA of tumor cells, preventing them from dividing and growing.

• Common side effects include fatigue, skin irritation, and localized pain.

• Example: A patient with breast cancer may receive rad...read more

Rapid arc and IMRT are both advanced radiation therapy techniques, but rapid arc is faster and more precise.

• IMRT uses multiple beams of radiation to target cancer cells from different angles, while rapid arc uses a single beam that rotates around the patient.

• Rapid arc is faster than IMRT, delivering treatment in just a few minutes compared to 10-30 minutes for IMRT.

• Rapid arc is also more precise, as it can adjust the intensity of the radiation beam in real-time to match the s...read more