Sunday, October 21, 2012

Oxygen 15



 Oxygen 15

Oxygen 15 has a half -life of 122 seconds . Oxygen 15 also has an Isotope of oxygen used in Positron Emission. Its Medical Procedures is Positron Emission Tomography. Another name for Positron Emission Tomography is PET Experiment . Positron Emission Tomography is oxygen that is injected into the blood. It decays. The Decay gives an image that the doctor can use to diagnose people with brain diseases . An example of this is Neuroimaging . Neuroimaging is any imaging technique–eg, PET scans, functional MRI, used to evaluate functional aspects of neural activity.  Neuroimaging is based on assumption that are areas of high radioactivity , and that associates with brain activity . It sends blood to different parts of the brain , which is believed to be correlated , and measured using Oxygen - 15 . Positron Emission Tomography works by injecting small amounts of radioactive isotopes into a patients bloodstreams. the isotopes are used to target organs, tissues , and other body structures . the side effects area Allergic reaction , slight pains , and hot flashes. the risks of Positron Emission Tomography is pregnancy . It can be a risk with fetal development or it can be a harmful substance in breast milk . 
Equation for oxygen 15  -

-  815O -> beta+ (T1/2 = 122.24 s) -> 715N + e+ + ve



Works Cited
"Isotopes of oxygen." Wikipedia. N.p., n.d. Web. 20 Oct. 2012. <en.wikipedia.org/wiki/Oxygen-15#Oxygen-15>.
"PET Scan | Positron Emission Tomography | Cancer Tests and Diagnosis." Cancer Social Network, Directory and Educational Hub | Know Cancer Community. N.p., n.d. Web. 21 Oct. 2012. <http://www.knowcancer.com/cancer-tests-diagnosis/pet-scan/>.
"Positron emission - Wikipedia, the free encyclopedia." Wikipedia, the free encyclopedia. N.p., n.d. Web. 20 Oct. 2012. <http://en.wikipedia.org/wiki/Positron_emission>.
"Write a balanced nuclear equation for the reaction in which oxygen-15 undergoes positron emission." The Q&A wiki. N.p., n.d. Web. 21 Oct. 2012. <http://wiki.answers.com/Q/Write_a_balanced_nuclear_equation_for_the_reaction_in_which_oxygen-15_undergoes_positron_emission>.
coolant. "Positron emission tomography." Wikipedia, the free encyclopedia. N.p., n.d. Web. 20 Oct. 2012. <http://en.wikipedia.org/wiki/Positron_emission_tomography>.
"neuroimaginghttp:// - definition of neuroimaginghttp:// in the Medical dictionary - by the Free Online Medical Dictionary, Thesaurus and Encyclopedia.." Medical Dictionary. N.p., n.d. Web. 21 Oct. 2012. <http://medical-dictionary.thefreedictionary.com/neuroimaginghttp://>.


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