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2. History of computed tomography - Wikipedia

   en.wikipedia.org/wiki/History_of_computed_tomography

   The first computed tomography (CT) system capable of producing images of any part of the human body without the need for a cumbersome "water tank" was the Automatic Computerized Transverse Axial (ACTA) scanner, designed by Dr. Robert S. Ledley, DDS, at Georgetown University. This revolutionary machine was equipped with 30 photomultiplier tubes ...

3. Single-photon emission computed tomography - Wikipedia

   en.wikipedia.org/wiki/Single-photon_emission...

   Collimator used to collimate gamma rays (red arrows) in a gamma camera. Single-photon emission computed tomography ( SPECT, or less commonly, SPET) is a nuclear medicine tomographic imaging technique using gamma rays. [1] It is very similar to conventional nuclear medicine planar imaging using a gamma camera (that is, scintigraphy ), [2] but is ...

4. Operation of computed tomography - Wikipedia

   en.wikipedia.org/wiki/Operation_of_computed...

   X-ray computed tomography operates by using an X-ray generator that rotates around the object; X-ray detectors are positioned on the opposite side of the circle from the X-ray source. A sinogram (left) and an image sample (right). [1] Picture of a CT scout ( scanogram or topogram) as used for planning every scan slice.

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   mail.aol.com

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6. Imaging phantom - Wikipedia

   en.wikipedia.org/wiki/Imaging_phantom

   Imaging phantom as seen on a medical ultrasound machine. Imaging phantom, or simply phantom, is a specially designed object that is scanned or imaged in the field of medical imaging to evaluate, analyze, and tune the performance of various imaging devices. [1] A phantom is more readily available and provides more consistent results than the use ...

7. Cone beam computed tomography - Wikipedia

   en.wikipedia.org/wiki/Cone_beam_computed_tomography

   Cone Beam CT scanner. MeSH. D054894. Cone beam computed tomography (or CBCT, also referred to as C-arm CT, cone beam volume CT, flat panel CT or Digital Volume Tomography (DVT)) is a medical imaging technique consisting of X-ray computed tomography where the X-rays are divergent, forming a cone. [1]