Скачать с ютуб What is the Gamma Knife? Chapter 6 — Brain Metastases: A Documentary в хорошем качестве

What is the Gamma Knife? Chapter 6 — Brain Metastases: A Documentary

This chapter discusses the first hospital-based dedicated radiosurgery system: Gamma Knife. Watch the entire documentary from the beginning here:    • Brain Metastases: A Documentary | How...   Gamma Knife is a one day radiosurgery treatment. In the morning of the treatment, a head frame is attached to the skull so the patient can be immobilized on the treatment table. A stereotactic frame is attached to the head frame to give the system points of reference so the clinician knows exactly where the tumor is. During treatment, 192 radiation sources focus on a single point to treat the tumor. Since the target point is spherical, computer software is used together with clinician expertise to treat irregularly shaped tumors. After the treatment, the pin points in the skull are dressed and the patient can go home. ---------------------------------------------------------------------------------------------------------- Video Transcript: Douglas Kondziolka, MD: The Gamma Knife is the first hospital-based dedicated radiosurgery system. Veronica Chiang, MD: The Gamma Knife treatment is a one-day treatment. DK: They’re going to come to the hospital early in the morning. We give them a little sedative. We will clean the skin and I inject some local anesthetic in the forehead and the back of the head prior to placing what I call a guiding device for stereotactic frame. It’s like a halo with little pins that anchor into the head in these numb areas. The patient will wear that during the procedure. The stereotactic frame guiding device prevents head movement. The second thing that the frame does is essentially creates a GPS device for the head so that we know where the tumor is inside the brain mathematically in three dimensional space exactly what that coordinate is. Dwight Heron, MD (11:13): We have 192 sources in a Gamma Knife and they’re all still focused at one point in space. DK: Each of the different radiation devices create this conformal irregularly-shaped plan in different ways. With the Gamma Knife, we use what are isocenters or shots of radiation. Each shot is sort of like a ball and if one wanted to make an irregular shape, you might make a series of balls that mathematically integrates in three dimensions to be that shape. Once that’s done, the group will then choose an amount of radiation that they think is best suited for that tumor in that location in that patient. There’s many factors important including: Did they have radiation before, the size of the tumor, its location, are there any other options should this not work, if there are risks, how would those be managed? VC: Once the treatment is done, they have the head frame taken off, they get some dressings from the pin sites, a head wrap, and then they go literally right home from there. ---------------------------------------------------------------------------------------------------------- Interested in learning more? See our other chapters below that address many questions regarding brain metastases: What are brain metastases?    • What are Brain Metastases? Chapter 1 ...   How do brain metastases develop and what causes them?    • What Causes Brain Metastases? Chapter...   What are the possible treatment options for brain metastases?    • Is Chemotherapy Effective for Brain M...   What is Whole Brain Radiation Therapy (WBRT) and how is it used to treat brain metastases?    • What is Whole Brain Radiation Therapy...   What is stereotactic radiosurgery?    • What is Stereotactic Radiosurgery? Ch...   What is a linear accelerator and how does it work?    • What is a Linear Accelerator? Chapter...   Frame-based vs. frameless radiosurgery. What’s the difference and how does it impact the patient and treatment?    • How are Patients Immobilized During R...   How does Cyberknife technology treat brain tumors?    • What is the CyberKnife? Chapter 9 — B...   What is a multileaf collimator and what role does it play in radiosurgery?    • What is Shaped Beam Radiosurgery? Cha...   What if a patient has more than one brain metastases? How are they treated?    • Can Multiple Tumors Be Treated at the...   Some radiosurgery treatments can be completed in just one visit. Why are multiple treatments (known as fractions) sometimes necessary?    • When is Radiosurgery Performed More t...   If it can harm the patient, why is Whole Brain Radiation Therapy (WBRT) still done?    • Why is Whole Brain Radiation Therapy ...   What does “Cancer is being treated as a chronic illness" mean? How do brain metastases patients maintain their quality of life?    • What Happens After Radiosurgery? Chap...   Why is surgery sometimes necessary to treat brain metastases?    • When is Surgery Recommended? Chapter ...   How do I choose the best care team for treating my brain metastases?    • How to Choose the Best Radiosurgery T...   What is the future outlook a brain metastases diagnosis?    • What is the Future of Brain Metastase...