posted on Nov, 3 2005 @ 08:46 AM
Everything is Spirituality and Science teaches us to live longer lives. Medical Imaging is frequently necessary for prevention, diagnosis, and
treatment of disease. Two medical imaging techniques come to mind: 1) Positron Emission Tomography (PET), and 2) Single Photon Emission Computed
Quote from howstuffworks: "PET produces images of the body by detecting the radiation emitted from radioactive substances. These substances are
injected into the body, and are usually tagged with a radioactive atom, such as Carbon-11, Fluorine-18, Oxygen-15, or Nitrogen-13, that has a short
decay time. These radioactive atoms are formed by bombarding normal chemicals with neutrons to create short-lived radioactive isotopes. PET detects
the the gamma rays given off at the site where a positron emitted from the radioactive substance collides with an electron in the tissue."
Another quote from howstuffworks: "SPECT is a technique similar to PET. But the radioactive substances used in SPECT (Xenon-133, Technetium-99,
Iodine-123) have longer decay times than those used in PET, and emit single instead of double gamma rays. SPECT can provide information about blood
flow and the distribution of radioactive substances in the body. Its images have LESS sensitivity, and are LESS detailed than PET images, but the
SPECT technique is less expensive than PET. Also, SPECT centers are more accesible than PET centers because they do not have to be located near a
Particle accelerators are essential for many fields, and ultimately their discoveries are the core of "what has occurred", and "what will occur".
Using PET versus SPECT causes the average person to live how much longer? Since particle accelerators are so useful for so many purposes, I heavily
support the idea of building particle accelerator centers in each reasonably sized world city.
Any ideas beyond PET and SPECT for Medical Imaging?