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European Journal of Nuclear Medicine

, Volume 13, Issue 6, pp 278–282 | Cite as

Evaluation of 3 dimensional space and time filtering on ECG gated 201Tl myocardial images

  • Michel H. Bourguignon
  • Héric Valette
  • D. Le Guludec
  • E. K. J. Pauwels
  • P. Merlet
  • C. Raynaud
  • A. Syrota
Article

Abstract

Stress 201Tl myocardial images were obtained using a standard ECG gated acquisition protocol for 10 min per view. These images were filtered using a three dimensional space and time filter. The effects of filtering were evaluated by sectorial analysis. Comparing raw and filtered dynamic images, quantification demonstrated that filtering did not produce artefacts. A conventional static image was also obtained as the sum of the series of unfiltered dynamic images. Comparison of raw static and filtered diastolic images indicated that the latter demonstrated myocardial abnormalities more clearly (P<0.01) in 33 patients. Improvement in the signal to noise ratio produced by filtering made cinematic display and visual analysis possible which was not feasible with raw gated images. Clinical evaluation is in progress.

Key words

ECG gated scintigraphy 201Tl space and time filter 

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References

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Copyright information

© Springer-Verlag 1987

Authors and Affiliations

  • Michel H. Bourguignon
    • 1
  • Héric Valette
    • 1
  • D. Le Guludec
    • 1
  • E. K. J. Pauwels
    • 2
  • P. Merlet
    • 1
  • C. Raynaud
    • 1
  • A. Syrota
    • 1
  1. 1.Service Hospitalier Frédéric Joliot, Département de Biologie duCommissariat à l'Energie AtomiqueOrsayFrance
  2. 2.Division of Nuclear MedicineAcademisch ZieckenhuisLeidenThe Netherlands

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