x-rays and cat scans?
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CAT Scans\nSo what's a CAT scan, anyway? \n\n"Computed Axial Tomography" is the process of using computers to generate a three-dimensional image from flat (i.e, two-dimensional) x-ray pictures, one slice at a time... \n\nWhat do you mean by "slice"? \n\nWell, imagine trying to visualize the inside of something like a fruitcake.    \n\n A fruitcake? \n\nThere's a lot of complexity on the inside that you can't guess from the outside, bits of fruit and nuts all over the place. How could you go about exploring the inside of a whole fruitcake? \n\nOh, I see what you mean now. If I sliced it up I could look at each slice and get an overall picture. \n\nRight! Well, CAT Scanners do the same thing, but rather than actually cut people up, they use x-rays to make pictures of the slices.    (There is an effort underway, called the Visible Human Project, where they are actually slicing up a (very dead) person and photographing each thin slice.)  \n\nOK, but we just said that CAT scans are useful because x-ray machines only take flat, two dimensional pictures and we want three dimensional pictures. So why is the process of imaging the flat "slices" difficult? Isn't making flat pictures what x-ray machines do? \n\nThe problem is that the flat x-ray we get is of the whole thing. It would be like crushing our fruitcake under a steam roller and saying, "There! Now we can see everything!" But we would have lost all the information about how "deep" the pieces of fruit and nuts were. \n\nSo how do we take x-rays of a slice in the middle? We could just turn the fruitcake sideways, but then all the other slices would get in the way. How do we take x-rays of only one slice? \n\nVery good! That's exactly the right question to ask. Let's explore that.
10262
Have you scanned for viruses?
553256
Sure they are and they will make more advances. There's the MRI, CAT Scan, PET, EEG, etc... without computers hospitals and any health care facilities will be disabled. So much depends on computers that life itselt cannot work without it.
735389
thumb print and or retna scan?
51159
scan online with several\nhttp://www.jimmyr.com/security.php
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MRI scans will show nerves, the spinal cord, muscles and fatty tissue that cannot be well seen on a normal x-ray. Any disease or problem directly concerning those tissues may give a doctor good cause to request such a scan.
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You must have a scanner that takes multipule scans(try dell).
927391
I'm very interested in becoming an radiology technologist, and from what I've heard, nowadays, the equipment is so good and improved that techs recieve little or no radiation.  There are actually little pins that techs can wear to track how much radiation they are exposed to, and like I said, with the new equipment, the pins have been very helpful in confirming the lack of exposure.
491941
One thing to consider is that nowadays films are being used less and less. My last CT-scan didn't end up on film, just on a CD-ROM. I don't know if that's possible for X-ray, but I would think this is a shrinking market.
90931
use the flat bed feature if your scanner has that.  Set the scanner for high resolution. Save as a .jpg file
119709
Imagine the body as a loaf of bread and you are looking at one end of the loaf. As you remove each slice of bread, you can see the entire surface of that slice from the crust to the center. The body is seen on CAT scan slices in a similar fashion from the skin to the central part of the body being examined. When these levels are further "added" together, a three-dimensional picture of an organ or abnormal body structure can be obtained.
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The detection of X-rays is based on various methods. The most commonly known method are a photographic plate, or cassette, and rare earth screens.\n\nThe X-ray photographic plate is frequently used in hospitals to produce images of the internal organs and bones of a patient. The part of the patient to be X-rayed is placed between the X-ray source and the photographic plate to produce what is a shadow of all the internal structure of that particular part of the body being X-rayed. The X-rays are blocked by dense tissues such as bone and pass through soft tissues. Where the X-rays strike the photographic plate it turns black when it is developed. So where the X-rays go through "soft" parts of the body like organs and skin the plate turns black. Contrast compounds containing barium or iodine can be injected in the artery of a particular organ. The contrast compounds strongly block the X-rays and hence the circulation of the organ can be more readily seen.\n\nAnother method of detecting X-rays is a fluorescent plate. In modern hospitals a special plastic sheet is used in place of the photographic plate. The plastic sheet is read by a scanning laser beam. The resultant image is then stored in a computer. The plastic sheet can be used over and over again.
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Progressive scan allows for a better quality picture when viewing media from a source that support it as well.\n\nfor example, if you DVD player support progressive scan, your TV must also support it inorder to use the function.
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Timeline for imaging technologies:\nhttp://www.greatachievements.org/?id=3753\n\nUltrasound was discovered in the 1950s:\nhttp://www.greatachievements.org/?id=3759\n\nHistory of X-Ray in a PowerPoint presentation\nhttp://physics.ramapo.edu/downloads/XrayHist.ppt\n\nA Century of Radiology:\nhttp://www.xray.hmc.psu.edu/rci/centennial.html\n\nAn excellent science-specific search engine (for the rest of your research, especially where journal abstracts are needed):\nhttp://www.scirus.com/
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you may need a cat scan then..MRI will not show a "slipped disc" you need a c.t.
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x-rays and microwaves, electricity and sound just to name a few.
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CT Scanning means: Computed Tomography or CAT Scan\nThe following is copied from a Wikipedia source:\nComputed tomography (CT), originally known as computed axial tomography (CAT) and body section roentgenography, is a medical imaging method employing tomography where digital geometry processing is used to generate a three-dimensional image of the internals of an object from a large series of two-dimensional X-ray images taken around a single axis of rotation. The word "tomography" is derived from the Greek tomos (slice) and graphia (describing). CT produces a volume of data which can be manipulated, through a process known as windowing, in order to demonstrate various structures based on their ability to block the x-ray beam. Although historically (see below) the images generated were in the axial or transverse plane (orthogonal to the long axis of the body), modern scanners allow this volume of data to be reformatted in various planes or even as volumetric (3D) representations of structures.\n\nAlthough most common in healthcare, CT is also used in other fields, e.g. nondestructive materials testing.