Dynamic Spatial Reconstructor: a high speed, stop action, 3-D, digital radiographic imager of moving internal organs and blood

S. M. Jorgensen, S. V. Whitlock, P. J. Thomas, R. W. Roessler, E. L. Ritman

Research output: Contribution to journalConference article

18 Scopus citations


The Dynamic Spatial Reconstructor (DSR) is a 14 x-ray source, video imaging system which operates on the computerized tomography scanning principle. It scans a cylindrical volume, 18.5 cm in axial height, with equal resolution in the transverse and axial directions and repeats this 'volume scan' (of up to 240 0.7 mm thick, parallel slices) at 16.67 ms intervals. The output of each of the 14 video imaging systems is A/D converted, shading corrected and stored in 64 megabytes of memory. The memory is used efficiently because the shading correction reduces the gray scale information of the pixels from 12 to 10 bits and because we need record only a selectable region of interest within the full video image.

Original languageEnglish (US)
Pages (from-to)180-191
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Dec 1 1990
EventUltrahigh- and High-Speed Photography, Videography, Photonics, and Velocimetry '90 - San Diego, CA, USA
Duration: Jul 10 1990Jul 13 1990


ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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