Types of radiation
Internal Brachytherapy Sealed X2 vs. Unsealed source
- Sealed Source (localized)
- a.Intracavity: radioisotope placed in
- the body cavity and left in place for a specific timeframe.
- >Person becomes radioactive
- b.Interstitial: radioisotope can be placed
- in beads, needles, seeds or catheter and placed directly into tumor. May be temporary or permanent.
- Unsealed Source (systemic)
- a.Unsealed Systemic: radioisotopes may be
- administered via IV or fluid can be instilled directly into body cavity. Also can be PO. Pts can release radiation. Amount will depend on type of radioisotope used.
- >only targets cancer cells