Radiation Therapy Flashcards
6 cards from real Mesothelioma Therapy practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Radiation Therapy flashcards as text
What is Intensity-Modulated Pleural Radiation Therapy (IMPRINT)?
Answer: A research approach using IMRT after P/D to treat the pleural surface
IMPRINT is an investigational approach using IMRT to deliver radiation to the pleural surface after lung-sparing P/D surgery.
Proton beam therapy is being studied in mesothelioma because it offers:
Answer: Lower entry dose and no exit dose, sparing nearby structures
Proton therapy deposits its peak energy at the tumor (Bragg peak) with minimal exit dose, reducing radiation to surrounding healthy tissues.
What is the typical fractionation schedule for palliative radiation in mesothelioma?
Answer: 4–5 fractions of 4–8.5 Gy
Palliative radiation for mesothelioma is commonly delivered in 4–5 large fractions (hypofractionated) to efficiently control symptoms with fewer visits.
Which imaging modality is preferred for radiation treatment planning in mesothelioma?
Answer: 4D-CT simulation scan
4D-CT simulation accounts for respiratory motion, which is critical for accurately delineating pleural targets during radiation planning.
What is the goal of prophylactic drain site irradiation in mesothelioma?
Answer: Prevent malignant seeding along biopsy or catheter tracts
Prophylactic irradiation of procedure sites prevents implantation metastases along needle biopsy or drain tracts, which mesothelioma cells can seed.
The SMART (Surgery for Mesothelioma After Radiation Therapy) protocol delivers radiation in which sequence?
Answer: Before surgery (neoadjuvant)
The SMART protocol delivers high-dose hemithoracic radiation before EPP surgery (neoadjuvant), aiming to sterilize tumor cells prior to resection.