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Two- and three-dimensional assessments of myocardial perfusion and function by using technetium-99m sestamibi gated SPECT with a combination of count- and image-based techniques

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Journal of Nuclear Cardiology Aims and scope

Abstract

Background

Although the myocardial gated single photon emission computed tomography (SPECT) technique makes it possible to assess concurrent myocardial perfusion and function, quantitative methods for analyzing and displaying gated SPECT data in 2- and 3-dimensional presentations for regional and global cardiac assessment have not been established.

Methods and Results

We have developed an automated quantitative method for assessing perfusion and function by means of technetium-99m sestamibi gated SPECT with a computerized technique combining count-based and image-based methods. We have examined its validity in 91 patients by comparing its results with those of conventional techniques: contrast left ventriculography and radionuclide angiocardiography. In addition to color-scale displays of regional function, simultaneous 3-dimensional presentations of regional wall motion and perfusion have been produced. High reproducibility of gated SPECT analysis with this algorithm was demonstrated; interoperator errors (%CV) were 2.6% to 5.5%, and good intraobserver reproducibility was confirmed by means of high correlation coefficients (0.954 to 0.989). Left ventricular volumes assessed by means of contrast left ventriculography and by means of the gated SPECT technique showed significant correlations (left ventricular end-diastolic volume, y = 1.01x - 9.7, r = 0.845, P < .001, standard errors of the estimate [SEE] = 14 mL; left ventricular end-systolic volume, y = 1.03x - 1.4, r = 0.902, P < .001, SEE = 6 mL). Left ventricular ejection fraction determined by means of gated SPECT with the new algorithm closely correlated with that determined by means of radionuclide ventriculography (y = 1.05x - 0.6, r = 0.891, P < .001, SEE = 3%). These parameters quantified by means of the present method correlated closely with those derived from the QGS program (r = 0.926 to 0.987).

Conclusion

In comparison with conventional techniques, myocardial gated SPECT with automated quantitative analysis provides accurate and reproducible data for global and regional function. Quantitative concurrent assessment of myocardial perfusion and function by using 2- and 3-dimensional representations appears to be superior to other modalities and to contribute to nuclear cardiology practice.

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Authors and Affiliations

  1. Department of Internal Medicine (Cardiology), Sapporo Medical University School of Medicine, S-1, W-16, Chuo-ku, 060, Sapporo, Japan

    Tomoaki Nakata, Mariko Eguchi, Kazufumi Tsuchihashi & Kazuaki Shimamoto

  2. Division of Nuclear Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan

    Yoshimi Katagiri, Yoshihiro Odawara & Masatoshi Kuroda

  3. Department of Radiology, Sapporo Medical University School of Medicine, Sapporo, Japan

    Masato Hareyama

Authors
  1. Tomoaki Nakata
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  2. Yoshimi Katagiri
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  3. Yoshihiro Odawara
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  4. Mariko Eguchi
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  5. Masatoshi Kuroda
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  6. Kazufumi Tsuchihashi
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  7. Masato Hareyama
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  8. Kazuaki Shimamoto
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Corresponding author

Correspondence to Tomoaki Nakata.

Additional information

We thank the staff of the Cardiology and Nuclear Medicine Department of Sapporo Medical University Hospital for their technical cooperation.

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Nakata, T., Katagiri, Y., Odawara, Y. et al. Two- and three-dimensional assessments of myocardial perfusion and function by using technetium-99m sestamibi gated SPECT with a combination of count- and image-based techniques. J Nucl Cardiol 7, 623–632 (2000). https://doi.org/10.1067/mnc.2000.109271

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  • DOI: https://doi.org/10.1067/mnc.2000.109271

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