12 Questions
What are some variables considered prior to treatment in radiation therapy?
Patient's overall physical & emotional condition, stage or histology type of tumor, type, extent & anatomic position of tumor
What is the purpose of Isodose Planning in radiation therapy?
To determine the distribution of radiation dosage in the treatment area
Describe the Crossfire Technique used in radiation therapy.
It involves delivering dosage between 2 or more portals of entry
What is the purpose of a Wedge Field in radiation therapy?
To alter the primary beam to achieve the treatment goal
When would a Mantle Field be used in radiation therapy?
For treating the upper tumor or major lymph-node groups above the diaphragm
What is the Inverted-Y (Hockey Stick) technique used for in radiation therapy?
It is used for treating lower tumors or para-aortic and inguinal lymph nodes with a central pelvic block
Why is radiation given preoperatively?
To make surgery easier, sterilize tumor cells on the surface, and alter surrounding normal tissue.
What is the purpose of using a simulator in radiation therapy?
To localize the target volume and normal tissues, and visualize the treatment fields.
What does SAD stand for in radiotherapy?
Source-Axis Distance
What does SSD stand for in radiotherapy?
Source-Skin Distance
What is the purpose of LINAC in radiotherapy?
To deliver radiation with a specific Source-Skin Distance (SSD).
What factors are considered in treatment planning for radiotherapy?
Volume selection, location of treatment, and dose to be delivered.
Learn about the different chemotherapy techniques used in cancer treatment, including pre-operative radiotherapy and post-operative chemotherapy. Understand the benefits of ionizing tumors before surgery and the reasons behind this approach.
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