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ECG-gated thallium-201 myocardial SPECT in patients with old myocardial infarction compared with ECG-gated blood pool SPECT

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Abstract

We evaluated one of the merits of ECG-gated thallium-201 single photon emission computed tomography (g-T1 SPECT), i.e., the ability to appreciate left ventricular (LV) wall motion. LV wall motion assessed by g-Tl SPECT and by ECG-gated Blood Pool SPECT (g-BP SPECT) was classified into three grades and compared segment by segment. T1-201 uptake by g-Tl SPECT was also classified into three grades and compared with those of wall motion in g-BP SPECT.

Fifty patients with prior myocardial infarction were injected intravenously at rest with 111 to 185 MBq (3 to 5 mCi) of Tl-201. The left ventricular regions were divided into anterior, septal, inferior and lateral segments (50 patients × 4 segments=200 segments in total). The grades of wall motion and Tl-201 uptake detected by g-Tl SPECT correlated well with those of wall motion in g-BP SPECT (94.5% and 85%, respectively).

With g-Tl SPECT it was possible to evaluate left ventricular wall motion, providing clear perfusion images.

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Authors and Affiliations

  1. Department of Radiology, Ehime University School of Medicine, 454 Shitsukawa, Shigenobu-cho, Onsen-gun, 791-02, Ehime-ken, Japan

    Teruhito Mochizuki, Kenya Murase, Masao Miyagawa, Shuji Tanada, Atsushi Iio & Ken Hamamoto

  2. Second Department of Internal Medicine, Japan

    Yasushi Fujiwara

  3. Ehime-kenritsu Imabari Hospital, Ehime-ken

    Taketoshi Itoh

  4. Department of Radiology, Division of Nuclear Medicine, University of Pittsburgh School of Medicine, USA

    Teruhito Mochizuki & W. Newlon Tauxe

Authors
  1. Teruhito Mochizuki
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  2. Kenya Murase
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  3. Yasushi Fujiwara
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  4. Taketoshi Itoh
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  5. Masao Miyagawa
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  6. Shuji Tanada
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  7. Atsushi Iio
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  8. Ken Hamamoto
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  9. W. Newlon Tauxe
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Mochizuki, T., Murase, K., Fujiwara, Y. et al. ECG-gated thallium-201 myocardial SPECT in patients with old myocardial infarction compared with ECG-gated blood pool SPECT. Ann Nucl Med 5, 47–51 (1991). https://doi.org/10.1007/BF03164613

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  • DOI: https://doi.org/10.1007/BF03164613

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