Tomography
Introduction
More modern variations of tomography involve gathering projection data from multiple directions and feeding the data into a tomographic reconstructionsoftwarealgorithm processed by a computer. Different types of signal acquisition can be used in similar calculation algorithms in order to create a tomographic image. Tomography is imaging by sections or sectioning. A device used in tomography is called a tomograph, while the image produced is a tomogram.
An ultrasound tomography device for scanning an object under examination from a plurality of directions. Coronal slice images of the plane areas near or at the female breast wall are obtained. Ultrasound lobes from ultrasound transducers are electronically directed or mechanically positioned to obliquely strike the coronal slice located at or near the breast wall. A full image of the coronal slice plane is reconstructed through section by section combination of the images obtained from the several ultrasound lobes.
Tomography is imaging by sections or sectioning. A device used in tomography is called a tomograph, while the image produced is a tomogram. The method is used in medicine, archaeology, biology, geophysics, oceanography, materials science, astrophysics and other sciences. In most cases it is based on the mathematical procedure called tomographic reconstruction. The word was derived from the Greek word tomos which means "a section", "a slice" or "a cutting". A tomography of several sections of the body is known as a polytomography.
Tomography is imaging by sections or sectioning. A device used in tomography is called a tomograph, while the image produced is a tomogram. . The word was derived from the Greek word tomos which means "a section", "a slice" or "a cutting". A tomography of several sections of the body is known as a polytomography.
Modern tomography:
More modern variations of tomography involve gathering projection data from multiple directions and feeding the data into a tomographic processed by a computer. Different types of signal acquisition can be used in similar calculation algorithms in order to create a tomographic image.
Description:
In conventional medical X-ray tomography, clinical staff make a sectional image through a body by moving an X-ray source and the film in opposite directions during the exposure. Consequently, structures in the focal plane appear sharper, while structures in other planes appear blurred. By modifying the direction and extent of the movement, operators can select different focal planes which contain the structures of interest. Before the advent of more modern computer-assisted techniques, this technique, ideated in the 1930s by the radiologist Alessandro Vallebona, proved useful in reducing the problem of superimposition of structures in projectional (shadow) radiography.
He was professor emeritus of anatomy at Yale University School of Medicine. He became convinced that the glue holding bodies in shape through “their ceaseless metabolism and changes of material” was an electrodynamic field or matrix he called the “L-field.” Harold Saxton Burr in 1935 described a system of electro-dynamic fields. He worked with the electromagnetic currents in the bodies of salamanders and then in humans which he finally named Lfields (life fields). Robert Becker reconfirmed Burr's work recently and applied DC current to regenerating salamander tails and healing human bone fractures. In his work with the National Institutes of Health (NIH) Becker clarified that the perineural (nerve sheath) network is highly conductive.B.E.W. Nordenstrom has described the Vascular interstitial closed circuit as a system of preferential ion conductance pathways comprising a network of biological circuitry. There is some suggestion that even more subtle energies resonate in the human system and may be projected over substantial distances as was shown by radionic practitioners like Drown and Hieronymus.Burr was able to show some amazing studies, e.g. a malignancy in the ovary was revealed by its L-Field before any clinical signs could be observed. He showed that the L-field matrix in a frog’s egg outlined the developmental growth of the entire nervous system. He states: “Nature keeps an infinite variety of electro-dynamic ‘jelly-moulds’ on her shelves with which she shapes the countless different forms of life that exist on this planet... L-fields are detected and examined by measuring the difference in voltage between two points on - or close to - the surface of a living form... They are pure voltage potentials which can yield only an infinitesimal amount of direct current.