Stereotactic radiosurgery (SRS) is an extremely precise computerized technique used to treat some brain tumors by delivering a high dose of radiation in one single treatment. SRS is performed on an outpatient basis at our all of our clinics, and can be used in combination with—or in select cases, instead of—brain surgery.
Computed tomography (CT) and magnetic resonance imaging (MRI) are used to pinpoint the location and exact shape of the tumor. SRS utilizes microbeamlets of radiation precisely focused to within a fraction of a millimeter of the brain tumor while avoiding the surrounding healthy brain tissue.
Stereotactic Radiosurgery can be used for treating benign, malignant, metastatic or non -oncologic tumors. Benign lesions can include schwannomas, adenomas, neurofibromas and meningioma. Malignant lesions include astrocytomas and glioblastomas. Non-oncologic targets include vascular malformations, trigeminal neuralgia and others prescribed by the doctor.
Stereotactic body radiation therapy (SBRT) uses a technique similar to stereotactic radiosurgery (SRS) to treat tumors outside the skull, like lung, liver, Metastases to distant areas spine, can come from any malignant primary cancer, the leading ones of which are lung, breast, melanoma, and prostate. Like SRS, SBRT is performed on an outpatient basis and can be used in combination with—or in select cases, instead of—surgery.
One difference between SRS and SRT, besides tumor location, is that the dose is typically delivered over one to five treatments rather than in a single large dose. Our radiation oncologist’s are expertly trained and leading the region in this cutting edge treatment and use the latest technology available.
TrueBeam™ is an advanced image-guided radiation therapy (IGRT) system used to treat cancer with speed and accuracy while avoiding healthy tissues and organs. TrueBeam was designed for complex cases of cancer of the lung, breast, stomach and brain. It also can be used for cancers of the liver and prostate, along with all other cancers treated with radiation therapy.
TrueBeam combines respiratory gating, real-time tracking, imaging and treatment in a streamlined system. With this integration, our doctors can offer advanced treatment options, such as stereotactic radiosurgery (SRS), stereotactic body radiation therapy (SBRT), image-guided radiotherapy (IGRT), intensity-modulated radiotherapy (IMRT), Calypso® beacon tracking, RapidArc® and Gated RapidArc®.
TrueBeam is a versatile technology that can provide you with the treatment suited for your specific cancer and individual needs. Our radiation oncologists are employing the use of TrueBeam technology at both our Cedar Rapids and Dubuque, Iowa locations.
TrueBeam rotates around your body to deliver radiation therapy from nearly any angle. The system provides real-time imaging, which allows your doctor to direct higher doses of radiation with greater accuracy. At the same time, TrueBeam’s respiratory gating technology gives your doctor the ability to synchronize radiation beams with your breathing. For example, doctors can treat a moving lung tumor as if it were standing still. Respiratory gating also protects nearby organs and healthy tissues from unnecessary radiation.
TrueBeam can make the experience of receiving radiation therapy more comfortable. Most treatments take just a few minutes a day, which means less time on the treatment couch and reduced motion during treatment.
Intra-Operative radiation therapy (IORT) delivers a concentrated dose of radiation therapy to a tumor bed during surgery. This advanced technology may help kill microscopic disease, reduce radiation treatment times or provide an added radiation "boost."
Typically, standard radiation therapy involves five days of treatment per week, for a total of five to six weeks for some patients. With IORT, our radiation oncologists can deliver a similar dose of radiation in a single treatment session, while also preserving more healthy tissue. This helps to reduce side effects and the time spent going back and forth to the hospital for radiation treatments.
Some possible side effects of treatment are skin redness and irritation in the treated area, which often improve after treatment is complete.
High-dose-rate (HDR) brachytherapy involves a powerful radiation source that our radiation oncologists accurately directs to deliver doses directly into a patient’s tumor through catheters (thin flexible tubes) or applicators placed in a body cavity.
It is a computer-controlled delivery system that optimizes dose distribution to the tumor and is frequently used in the treatment of cervical and uterine cancers.