Radiation therapy EXAM VERIFIED |
LATEST UPDATE
What is the primary advantage of brachytherapy? - Answer- It allows the delivery of high
doses directly to the affected area while minimizing doses to surrounding tissues
What is the purpose of immobilization in EBRT? - Answer- To ensure the patient's
position is reproducible, accurate, and relatively comfortable during treatment.
What does CT simulation involve in the localization process - Answer- Using a large
bore CT scanner, flat CT couch, laser positioning lights, and obtaining virtual simulation
data with reference measurements
What is the role of DICOM in EBRT - Answer- To manage the transport of digital
imaging and communication in medicine data, ensuring correct format and compatibility.
What is External Beam Radiotherapy? - Answer- The use of ionizing radiation (high
energy X-rays) produced in a machine (LINAC) and directed at the tumour from outside
of the patient.
What energies do superficial and orthovoltage units operate at? - Answer- A range of
50-350kV beam energies
Why is quality assurance (QA) critical in radiotherapy? - Answer- It minimizes errors in
treatment planning and dose delivery, ensuring accurate radiotherapy planning and
treatment.
What factors are considered in radiotherapy treatment decisions at a multidisciplinary
clinic? - Answer- The confirmed histology, stage and grade of the tumour, and whether
the intent is radical or palliative
What treatment methods might be considered for a patient referred for radiotherapy -
Answer- Surgery, Radiotherapy, Chemotherapy, etc
What are the types of external beam radiotherapy modalities? - Answer- Superficial,
Orthovoltage, Megavoltage: Linac or Cobalt-60
What must be checked during the verification process in EBRT? - Answer- The
treatment parameters against the original localization details to ensure the correct
anatomical tissues are targeted.
What is involved in post-treatment quality control in EBRT? - Answer- Ensuring the
correct dose and fractions were delivered, appointments were attended, follow-up
appointments were scheduled, and any plan alterations were documented
LATEST UPDATE
What is the primary advantage of brachytherapy? - Answer- It allows the delivery of high
doses directly to the affected area while minimizing doses to surrounding tissues
What is the purpose of immobilization in EBRT? - Answer- To ensure the patient's
position is reproducible, accurate, and relatively comfortable during treatment.
What does CT simulation involve in the localization process - Answer- Using a large
bore CT scanner, flat CT couch, laser positioning lights, and obtaining virtual simulation
data with reference measurements
What is the role of DICOM in EBRT - Answer- To manage the transport of digital
imaging and communication in medicine data, ensuring correct format and compatibility.
What is External Beam Radiotherapy? - Answer- The use of ionizing radiation (high
energy X-rays) produced in a machine (LINAC) and directed at the tumour from outside
of the patient.
What energies do superficial and orthovoltage units operate at? - Answer- A range of
50-350kV beam energies
Why is quality assurance (QA) critical in radiotherapy? - Answer- It minimizes errors in
treatment planning and dose delivery, ensuring accurate radiotherapy planning and
treatment.
What factors are considered in radiotherapy treatment decisions at a multidisciplinary
clinic? - Answer- The confirmed histology, stage and grade of the tumour, and whether
the intent is radical or palliative
What treatment methods might be considered for a patient referred for radiotherapy -
Answer- Surgery, Radiotherapy, Chemotherapy, etc
What are the types of external beam radiotherapy modalities? - Answer- Superficial,
Orthovoltage, Megavoltage: Linac or Cobalt-60
What must be checked during the verification process in EBRT? - Answer- The
treatment parameters against the original localization details to ensure the correct
anatomical tissues are targeted.
What is involved in post-treatment quality control in EBRT? - Answer- Ensuring the
correct dose and fractions were delivered, appointments were attended, follow-up
appointments were scheduled, and any plan alterations were documented
