Doctor insights on:
Disadvantages Of Gamma Rays
This is light of extremely short wavelengths typically produced either among the stars / in cosmic rays or by radioactive element decay. Gamma rays form the background of normal radiation in which we all live; it is substantially greater than the exposure we get from imaging scans or should get from ...Read more
High energy photons: This is light of extremely short wavelengths typically produced either among the stars / in cosmic rays or by radioactive element decay. Gamma rays form the background of normal radiation in which we all live; it is substantially greater than the exposure we get from imaging scans or should get from exposures in the workplace. ...Read more
Targeting: Radiation oncologists are trained to precisely deliver radiation to specific areas. The goal is to focus the energy on the tumor while limiting how much damaging radiation reaches otherwise healthy tissue. The beams are often arranged at positions to prevent undesirable overlap. Ct scans are usually used to plan exactly how the radiation will be delivered in order to maximize the safety. ...Read more
Can cause cancer: Radiation from various sources has the potential to cause cell damage leading to Cancer. The risk is based on the total dose of radiation received by a subject. Moderate doses are commonly used to treat cancer and low doses are commonly receeived when doing X-ray imaging of the body but these are felt to be safe (for medical uses) ...Read more
To destroy DNA: OWhen Memorial Hosp formed in Central Park they treated advanced cervix cancer using Curies RT approach. This was before chemo was introduced by Karnofsky using nitogen mustard to produce similar respnses by DNA tumor destruction. When lesions are too large for resection gamma RT now employed alone or with chemo to convert to operability or improve survival in RT responsive lesions. ...Read more
Uv rays: Tanning beds give off uv rays at the short end of the visible spectrum. The sun also gives off such rays which causes sunburn. The tanning bed is therefore an artificial sun. The beta, alpha, & gamma rays are from radioactive sources and would be dangerous for a tanning bed and would not cause tanning anyway. ...Read more
Yes. Gamma: Rays are photons, usually all of teh same energy, once produced by cobalt 60 machines, now in gamma knife units. Alpha particles are densely ionzing not very penetrating helium nuclei, and beta particles are electrons that do not penetrat. An x-ray generally produces a pectrum of energies, produced by the braking of electrons on a target of metal, like tungsten. ...Read more
Cell & DNA damage: Radiation damages the dna and rapidly dividing cells. In a fetus, especially during the organ development state, a large number of the cells are rapidly dividing and susceptible to permanent damage due to radiation. Such damage may cause birth defects, genetic defects and cancer later in life. ...Read more
Unlikely: Gamma knife is a targeted method for delivering radiation to a site routinely in the brain or spinal cord. Because of this targeting, there's less chance of collateral damage to bystander organs like those of your reproductive system. ...Read more
Not usually: With any type of radiation, the risk of side effects depends on the dose and body part being irradiated. Gamma knife is a technique that delivers a high dose to a small area of the body. If the testicles and pituitary gland are not exposed to a significant dose of radiation, fertility should not be effected. ...Read more
Should a healthy 35 y/o male with a 1.9cm acoustic neuroma be given radiation (Gamma Knife) as a long term treatment option?
Gamma knife: Is ONE option but please get a second opinion. Some docs may suggest monitoring it to see about growth or lack thereof. Please do what doctors say after you've seen several. Peace and good health. ...Read more
For a high grade glioma in an 82 yo, which treatment is better, gamma knife or stereotactic radiation therapy?
Stereotactic: Radiosurgery (srs), whether by gamma knife, cyberknife, or any other machine is not standard treatment for glioma. Glioma infiltrates into normal brain and so a generous "safety margin" of brain outside if the tumor or cavity must be treated. Conformal daily rt over many weeks safely treats the tumor infiltrating the brain. Srs cannot safely do that, but is sometimes used if standard rt fails. ...Read more
What are the effects of gamma knife radiation to the cavernous sinus cavity & pituitary gland due to an invasive atch secreting tumor?
Possible scarring: Pituitary adenomas are nearly always benign tumors, but can be quite locally destructive or infiltrative, making them difficult to remove from all of the nooks and crannies of the region. Radiation provides a way of controlling the growth. Cavernous sinus isn't usually affected, although rare thrombosis can be seen. ...Read more
What should I expect for small cell lung cancer metastasized to the brain twice. I have been treated with gamma knife as well as whole brain radiation?
What is the life expectancy of a 68 years old healthy person if nsc metastasized lung cancer has spread to brains and pelvic? Gamma knife and radiation already used, now chemotherapy.
About one year: But if the patient is feeling healthy, her odds for survival are better. ...Read more
The amount: Of exposure for diagnostic x-rays is considered safe. Any increased exposure to radiation contributes to a cumulative theoretical lifetime risk, including flying on a plane, but the risk from a single x-ray is miniscule. That said, the increased risk is zero if you don't have the x-ray, which is why x-rays should only be utilized when medically necessary. ...Read more
The theoretical: Increased risk for any individual xray is minimal. For a medically indicated xray, the diagnostic benefit outweighs the minimal risk, so although it is always prudent to be aware of cumulative xray exposure, worrying excessively about X-rays could lead to imprudent and dangerous health care decisions. You can calculate the risks at xrayrisk. Com. ...Read more
Radiation: Probably about. 03 mSv.Get a more detailed answer ›
Could I be exposed to too much radiation while x-raying horses, wearing only lead glove to hold X-ray plate, for several years?
Xrays in pregnancy: First, try to avoid radiation. If it is so important someone's health is at great risk, go ahead with the x-ray but try to avoid exposure of the uterus by covering it with lead apron. Really try to avoid big time radiation like CT scans. If the x-ray has already taken place before you knew you were pregnant, not much to do now except inform your OB so they are aware the exposure took place. ...Read more
About 0.1 mSv,: Similar to a chest xray. To put that in perspective, natural background radiation exposure is about 3.1 mSv/yr. It is minimal. ...Read more
No: They can't shield the neck, because then they couldn't do the X-ray. They will narrow the beam (collimate) to be sure that only the necessary region is xrayed ...Read more
Think about it...: If riding in an airplane were a risk, what would the pilots and crew face? I am a 2m miler and while the exposure is more than if I lived in cave, I would never have seen the taj majal or foz do iguazu. Slight increase in risk; versus astounding benefit. Same can be said for x-ray exposure. Get only x-ray tests needed. ...Read more
Linear Accelerator: Ray gun. I like that. Electrons are accelerated towards tungsten and the braking (slowing down of these when they hit) creates the x-rays. Different energies can be made depending on the voltage levels. No chemicals are used. Old days cobalt-60 was a radioactive substance in the machine that gave off these xrays. Its the same kind as xrays for pictures but for therapy the energies are higher. ...Read more
How much radiation am I being exposed to in ap full spine and what are the indications for full spine x-ray?
It depends: The health physics society site is an excellent resource on radiation dose and effect: http://hps. Org/. The dose is dependent on several variables, most importantly the patient's size. It takes more radiation to make and x ray of an obese person than a thin person. The average dose for an ap full spine is likely in the 2.5-3.0 msv range. This is about equal to 1 year of ambient radiation. ...Read more