MikeLigalig.com

Stereotactic radiosurgery is the most accurate way to use radiation to destroy tumors or abnormally functioning tissue in and around the brain. A Swedish neurosurgeon, Dr. Lars Leksell, conceived of the technique more than 50 years ago. His idea for a safer way to perform neurosurgery has evolved over the past half century to become an extremely important technique used for the management of cancer and other conditions affecting the brain.

Stereotactic radiosurgery is very rarely associated with complications, and each patient’s case is different, so that all discussions of possible complications should occur with the neurosurgeon and radiation oncologist at the time of the initial consultation.

A number of tumors are treated with stereotactic radiosurgery with excellent results. Commonly treated tumors include metastatic cancerous tumors that have spread to the brain from elsewhere in the body as well as tumors arising in and around the brain such as meningiomas, acoustic neuromas, and pituitary adenomas. Occasionally, other types of brain tumors or tumors arising from tissues around the brain and skull are treated with stereotactic radiosurgery as well. Other conditions that are commonly treated with stereotactic radiosurgery at Yale include trigeminal neuralgia, in which stereotactic radiosurgery is used to treat an abnormally functioning nerve that is causing severe facial pain and arteriovenous malformations (AVMs), in which abnormal blood vessels exist in the brain and predispose patients to strokes.

The team that provides stereotactic radiosurgery includes not only a radiation oncologist and a neurosurgeon, but also a physicist and a nurse. Important logistical support in obtaining insurance preauthorization and scheduling on the day of the radiosurgical treatment is provided by a dedicated administrative assistant.

On the day of treatment, before treatment can occur, a dedicated set of images to guide treatment is obtained after the placement of a stereotactic headframe on the patient’s head by the neurosurgeon. These images may include MRI, CT, and angiography. These images are sent to a dedicated computer where the treatment plan is developed by the physicist, radiation oncologist, and neurosurgeon. The plan is evaluated in virtual reality and optimized before any treatment is delivered. Only after the treatment plan has been approved by the radiation oncologist, physicist, and neurosurgeon can treatment start.


http://radonc.yale.edu/clinical/gamma.aspx


Linkback: https://tubagbohol.mikeligalig.com/index.php?topic=76121.0

Linkback: https://tubagbohol.mikeligalig.com/index.php?topic=76121.0

Linkback: https://tubagbohol.mikeligalig.com/index.php?topic=76121.0

Gamma Knife® Radiosurgery is a non-surgical medical procedure recognized as the preferred treatment for brain tumors, arteriovenous malformations and brain dysfunctions such as trigeminal neuralgia.

 Gamma Knife® provides an alternative option for many patients for whom traditional brain surgery is not an option. With precise delivery of high doses of radiation, Gamma Knife® is able to kill cancer cells and shrink tumors while avoiding damage to healthy brain tissue. The lesion being treated receives a high dose of radiation with minimum risk to nearby tissue and structures leaving little discomfort if any to the patient. Due to the absence of an incision, there is no risk of hemorrhage or infection and treatment can be effectively administered in a single session. Patients can usually go home the same day and return to work or school immediately.

The Gamma Knife® is not a knife, but rather a highly developed treatment system, capable of directing up to 201 beams of gamma radiation to converge on a targeted abnormality within the brain. When concentrated, the rays provide enough radiation to treat the diseased area effectively; while the low intensity of each individual beam ensures the safety of the surrounding healthy brain tissue.

With the Gamma Knife®, areas of the brain for which other therapies or conventional surgery are ineffective, can be successfully treated. The Gamma Knife®'s precision and safety make it a highly appropriate choice for both pediatric and adult patients.

reference:
http://nyp.org/radonc/gammaknife.html

Linkback: https://tubagbohol.mikeligalig.com/index.php?topic=76121.0

Stereotactic Body Radiotherapy, or SBRT, is a treatment procedure similar to brain stereotactic radiosurgery and radiotherapy, except it deals with tumors outside of the brain. SBRT works by delivering high doses of radiation to accurately target the tumor while sparing normal organs. Due to a high radiation dose being delivered, there is an increase in the treatment time for each fraction. However, treatment is usually complete within 5-10 days as opposed to the standard 40 day course of treatment. Features such as a high precision Multi-Leaf Collimator for IMRT delivery and Cone Beam CT imaging for precise target localization allow for small treatment fields so that there are minimal side effects to the patient. Some procedures will use the combination of an ultra high dose rate and mixed treatment energies which allow for better dose conformity to tumor. The ability to conform the dose to the shape of the tumor allows the clinician to treat a smaller volume which in turn offers an alternate choice of treatment for patients with inoperable tumors or elderly patients who are high risk for surgery. SBRT can be used to treat primary, metastatic and previously irradiated cancer sites. The surgical procedure has a success rate of 96%.


reference:
http://nyp.org/radonc/gammaknife.html

Linkback: https://tubagbohol.mikeligalig.com/index.php?topic=76121.0

Before and After




Linkback: https://tubagbohol.mikeligalig.com/index.php?topic=76121.0

it will. i think st. luke's hospital in manila is in the midst of acquiring one.

Linkback: https://tubagbohol.mikeligalig.com/index.php?topic=76121.0