3D Conformal Radiation Therapy: 3D is a standard radiation therapy where several stationary beams are aimed at targeted areas resulting in a uniform (conformal) dosage that matches the three-dimensional shape of the tumor.
Brachytherapy: Temporary internal radiation, or high-dose rate (HDR) brachytherapy, is performed on an outpatient basis. For a defined period of time, patients receive radiation "seeds" or "implants" that are removed before the patient goes home. Brachytherapy has been successful in treating prostate, breast, skin, cervical, uterine and vaginal cancers.
- High Dose Rate (HDR): HDR brachytherapy is delivered on an out-patient basis and allows for a higher-than-normal dose of radiation placed in or adjacent to the tumor, with minimal risk to nearby organs. HDR treatment can be performed alone or in combination with external beam radiation therapy.
- Low Dose Rate (LDR): St. Paul Cancer Center performs LDR brachytherapy treatments utilized for gynecologic oncology patients.
- Prostate Seed Implant: A procedure performed either as a stand-alone therapy or in addition to external beam radiation at the Maplewood Cancer Center.
- Zevalin Therapy: Zevalin is a targeted cancer therapy called radioimmunotherapy that combines the use of a monoclonal antibody and a radioisotope to target and destroy specific cells. This is used to treat advanced, relapsed, malignant lymphoma.
Intensity Modulated Radiation Therapy (IMRT): IMRT directs hundreds of small radiation beams of varying intensities that conform to the irregular shape of tumors, limiting exposure to surrounding tissue. This type of precision therapy is often used when cancer is in close proximity to vital organs and certain body parts, such as eyes, the spinal cord, salivary glands and intestines.
Intensity Modulated Arc Therapy (IMAT): IMAT is the use of IMRT delivered to the targeted area while the arm of the linear accelerator is in motion around the patient, resulting in multiple radiation beams being delivered to the specific tumor area more rapidly. This technology reduces treatment times by as much as 80 percent, minimizing discomfort to the patient.
Image-Guided Radiotherapy (IGRT): Because tumors deep within the body often move between treatments, IGRT is important for precision radiation therapy. IGRT improves the delivery of sophisticated radiation treatments because it allows us to precisely locate tumors before a daily radiation treatment using advanced imaging techniques, such as CT, x-ray or ultrasound. Tumor movement can be monitored and the treatment carefully adjusted, according to the tumor location.
Stereotactic Radiosurgery (SRS): SRS is a highly precise form of radiation therapy used primarily to treat tumors and other abnormalities of the brain. Despite its name, SRS is a non-surgical procedure that delivers a high dose of precisely targeted radiation to the tumor with sub-millimeter accuracy, minimizing the effect on healthy brain tissue. SRS can frequently be completed in a one-day session, although physicians may recommend multiple treatments for some tumor types.
Stereotactic Body Radiotherapy (SBRT): SBRT is a new and rapidly evolving technique used to treat lung, spine, liver, prostate and other cancers. SBRT does for the rest of the body what Gamma Knife technology does for the brain. It delivers precise, high-dose radiation to tumors or other abnormalities in the body using 3-D treatment planning, a body-immobilizing frame and a CT scan-based IGRT. SBRT is typically delivered in fewer treatments than traditional radiation.