Chemotherapy in Oncology

To treat micro-metastases systemically.

To make surgery easier, sterilize tumor cells on the surface, and alter the surrounding normal tissue.

To localize the target volume and normal tissue, and to visualize the plan of treatment fields.

<p>SAD is the distance from the treatment source to the target tumor, while SSD is the distance from the source to the surface of the skin.</p> Signup and view all the answers

<p>To create an outline or shape on the patient's skin to mark the boundary of the tumor and normal tissue.</p> Signup and view all the answers

<p>It is the distance from the source to the target tumor, which affects the dose of radiation delivered to the tumor.</p> Signup and view all the answers

<p>The primary consideration is the patient's overall physical and emotional condition. The key factors involved in this decision include the type and stage of tumor, its anatomic position, time-dose fractionation, radiation oncology unit capabilities, and the goal of treatment.</p> Signup and view all the answers

<p>The purpose of verification of set-up and portal imaging is to ensure that the treatment is delivered accurately and precisely to the target volume. This contributes to the overall success of the treatment by minimizing the risk of complications and ensuring that the tumor receives the intended dose of radiation.</p> Signup and view all the answers

<p>Teletherapy involves the delivery of radiation from an external source, whereas brachytherapy involves the placement of a radioactive source inside the body. The advantages of teletherapy include its ability to treat larger tumors, while brachytherapy offers more precise control over the dose of radiation delivered.</p> Signup and view all the answers

<p>The purpose of isodose planning is to determine the optimal distribution of radiation dosage to the target volume. It facilitates the treatment planning process by allowing the radiation oncologist to select the most effective treatment approach and to minimize the risk of complications.</p> Signup and view all the answers

<p>Multileaf collimators are beam shaping machines used in LINAC to manipulate the radiation beam and conform it to the shape of the target volume. They contribute to the precision of treatment delivery by allowing for more precise control over the dose of radiation delivered.</p> Signup and view all the answers

<p>The key components of a radiotherapy facility include the control room, treatment room, simulation room, and treatment planning room. These components contribute to the overall quality of patient care by facilitating the delivery of high-quality treatment and ensuring that patients receive safe and effective care.</p> Signup and view all the answers