Traumatic brain injury usually results from a violent blow or jolt to the head or body. An object that penetrates brain tissue, such as a bullet or shattered piece of skull, also can cause traumatic brain injury.
Mild traumatic brain injury may affect your brain cells temporarily. More-serious traumatic brain injury can result in bruising, torn tissues, bleeding and other physical damage to the brain. These injuries can result in long-term complications or death.
Why it’s done
IGRT is used to treat all types of cancer, but it’s particularly ideal for tumors and cancers located very close to sensitive structures and organs. IGRT is also useful for tumors that are likely to move during treatment or between treatments.
IGRT is used as part of radiation treatment plans because it offers:
Accurate delivery of radiation
Improved definition, localization and monitoring of tumor position, size and shape before and during treatment
The possibility of higher, targeted radiation dosage to improve tumor control
Decreased radiation exposure to normal tissue surrounding the tumor
What you can expect
If you undergo IGRT, your treatment team may choose one or more imaging types to precisely locate the tumor and sensitive organs. IGRT may involve a variety of 2-D, 3-D and 4-D imaging techniques to position your body and aim the radiation so that your treatment is carefully focused on the tumor in order to minimize harm to healthy cells and organs nearby.
During IGRT, imaging tests are done before, and sometimes during, each treatment session. Your radiation therapy team compares these images to ones taken previously to determine if your tumor has moved and adjust your body and your treatment to target your tumor more precisely.
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