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Three dimensional ultrasonography of ocular region

  • Y. Yamamoto
  • M. Kubota
  • Y. Sugata
  • S. Matsui
  • M. Ito
Part of the Documenta Ophthalmologica Proceedings Series book series (DOPS, volume 51)

Summary

A spiral scan is introduced to collect three dimensional (3D) data of the ocular region so that it may give uniformly-spaced echo data with enough resolution and that the cross-sectional image of any specified plane can be reconstructed. The system consists of a 3D-Scanning unit, an image processing unit with memories of 2M bytes, and a ultrasound puiser and receiver unit. The obtained 3D-data are stored on a floppy disk or directly in the large memory for fast processing. A conventional probe of 10 MHz is used to scan the total tissue and is driven spirally under the control of the 3D-Scanning unit. The developed system can supply black and white 3D-images with or without the pseudo-color cross-section, gradated according to the echo levels, to allow quantitative and qualitative evaluation of the intraocular pathology. The shape and the contour image from the desired viewing angle can be implemented by the built-in microcomputer. The present system was assessed by case studies to be qualified as to contain more information as compared with the ordinary B-mode echography and the rapid image processing to be useful in clinical routine activities. Measurement of the volume is another function of the 3D echography which is not obtainable by the conventional B-mode. The precision was experimented by the measurement of the lens volume.

Keywords

Floppy Disk Ultrasound Diagnosis Receiver Unit Spiral Scanning Dimensional Display 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Hill CR, Carpenter DA. 1976. Ultrasonic echo imaging of tissues: instrumentation. Brit J Radiol 49: 238–243.PubMedCrossRefGoogle Scholar
  2. Hirano S, Yamamoto Y, Sugata Y et al. 1982. Image treatment in the eye in ultrasound diagnosis and clinical significance. X. Contour line extraction and three dimensional display. Jpn J Clin Ophthalmol 36:475–480.Google Scholar
  3. Ito M, Yamamoto Y, Sugata Y. 1985. On highly-gradated ultrasonography by color and luminance specifications. In: RW Gill and MJ Dadd (eds) Proc of 4th meeting of the World Federation for Ultrasound in Medicine and Biology. Pergamon, Sydney, p. 555.Google Scholar
  4. Ito M, Yamamoto Y, Sugata Y. 1985. Three-dimensional display with a specified-plane ultrasonogram by a spiral scanning. In: RW Gill and MJ Dadd (eds) Proc of the 4th meeting of the World Federation for Ultrasound in Medicine and Biology. Pergamon, Sydney, p. 558.Google Scholar
  5. Sugata Y, Hirano S, Tomita M et al. 1982. Image treatment in the eye in ultrasound diagnosis and clinical significance. XI. Improvements of images on cathode ray tube by new polymer transducer and new color grading. Acta Soc Ophthalmol Jpn 86: 1004–1011.Google Scholar
  6. Yamamoto Y, Hirano S, Sugata Y et al. 1983. Microcomputer aided imaging techniques in ophthalmic B-mode. In: JS Hillman and MM May (eds) Ophthalmic Ultrasonography, Junk, The Hague, pp. 467–477.Google Scholar
  7. Yamamoto Y, Hirano S, Sugata Y et al. 1983. Image treatment in the eye in ultrasound diagnosis and clinical significance. XIV. Measurements of vitreous volume. Folia Ophthalmol Jpn 34: 2473–2477.Google Scholar
  8. Yanashima K, Akeo Y, Okade Y, Ishiguro M, Fukuma H. 1985. 3-Dimensional echography using a linear acanning tomography., Jpn J Med Ultrasonics 12 (suppl 1): 839–840.Google Scholar

Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • Y. Yamamoto
    • 1
    • 2
  • M. Kubota
    • 2
  • Y. Sugata
    • 2
  • S. Matsui
    • 2
  • M. Ito
    • 3
  1. 1.Metropolitan Tama Gerontology CenterTokyoJapan
  2. 2.Department of OphthalmologyMetropolitan Komagome HospitalTokyoJapan
  3. 3.University of Agriculture and TechnologyTokyoJapan

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