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Journal of Dental Research
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Enhancement of Tomosynthetic Images in Dental Radiology

P.F. van der Stelt

Department of Oral Radiology, School of Dentistry, Free University, Amsterdam, The Netherlands)

U.E. Ruttimann

Diagnostic Systems Branch, National Institute of Dental Research/NIH, Bethesda, Maryland 20892

R.L. Webber

Diagnostic Systems Branch, National Institute of Dental Research/NIH, Bethesda, Maryland 20892

In conventional projection radiography, anatomical structures superimposed on details of interest increase the difficulty of visual interpretation. Part of this problem can be resolved by tomographic reconstruction of specific "tissue" slices. Computer-aided tomosynthesis is one method which can reduce the superposition problem, but the reconstruction can benefit from further enhancement. In this investigation, we studied two such enhancement schemes: high-pass spatial-frequency filtration and iterative deconvolution. The performance of each technique was judged qualitatively in terms of the depiction of specific details of diagnostic interest, and quantitatively in terms of the degree of success afforded by each in rendering adjacent tissue slices independent. Both techniques demonstrated improved performance over the status quo.

REFERENCES

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  • Groenhuis, R.A.J.; Webber, R.L.; and Ruttimann, U.E. (1983): Computerized Tomosynthesis of Dental Tissues, Oral Surg 56:206-214.
  • Ruttimann, U.E.; Groenhuis, R.A.J.; and Webber, R.L. (1984): Restoration of Digital Multiplane Tomosynthesis by a Constrained Iteration Method, IEEE Trans Med Im MI 3:141-148.
  • Van Der Stelt, P.F.; Van Der Linden, L.W.J.; Alons, C.; and Geraets, W.G.M. (1985): Digitized Pattern Recognition in the Diagnosis of Periodontal Bone Defects, J Clin Periodontol 12:822-827.[Medline] [Order article via Infotrieve]
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  • Ziedses Des Plantes, B.G. (1973): In: Selected Works of B.G. Ziedses des Plantes, Amsterdam: Excerpta Medica, pp. 129-143.

Journal of Dental Research, Vol. 65, No. 7, 967-973 (1986)
DOI: 10.1177/00220345860650071401
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This Article
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Citing Articles
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Right arrow Articles by van der Stelt, P.F.
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PubMed
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Right arrow Articles by van der Stelt, P.F.
Right arrow Articles by Webber, R.L.
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What's this?