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Segmental acquisition method for stationary objects in 18F-fluorodeoxyglucose positron emission tomography tests

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Japanese Journal of Radiology Aims and scope Submit manuscript

Abstract

Purpose

We investigated whether images of stationary objects obtained by segmental acquisition with positron emission tomography using 2-deoxy-2-[18F]-fluoro-d-glucose (FDG-PET) are of a quality equivalent to those obtained by conventional continuous acquisition.

Materials and methods

Phantoms filled with FDG and mid-abdominal regions of 18 patients who underwent FDG-PET tests were imaged by both continuous and segmental acquisition methods. The total acquisition time was set to 3 min; in the segmental acquisition mode, imaging for 15 s was repeated 12 times. Segmental images (SIs) obtained by superimposition of the reconstructed images were compared quantitatively and visually with continuous images (CIs).

Results

In all the phantom and clinical studies, SIs were never worse than CIs. The variances of the background counts of SIs were 9.8% and 13.0% less those of CIs in phantom and clinical studies, respectively. Visual assessments showed that SIs provided better detection of hot areas and superior image quality when compared to CIs.

Conclusion

For stationary objects, the quality of images obtained by the segmental method is equivalent to that of images obtained conventionally by continuous acquisition. Moreover, under some conditions SIs provide better results than CIs.

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Authors and Affiliations

  1. Functional Imaging Division, Research Center for Innovative Oncology, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa, 277-8577, Japan

    Keisuke Tsuda, Masayuki Yamaguchi, Izumi O. Umeda & Hirofumi Fujii

  2. Fukushi Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan

    Keisuke Tsuda & Masahiro Fukushi

  3. Department of Applied Electronics, Tokyo University of Science, Noda, Japan

    Naoyuki Aikawa

  4. Department of Radiology, Touto Clinic, Tokyo, Japan

    Takayuki Suzuki & Etsuo Moriya

  5. Diagnostic Radiology Division, National Cancer Center Hospital, Tokyo, Japan

    Hideaki Kitamura

  6. Radiology Division, National Cancer Center Hospital East, Kashiwa, Japan

    Kouzou Hanai

  7. Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan

    Noriyuki Moriyama

Authors
  1. Keisuke Tsuda
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  2. Naoyuki Aikawa
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  3. Takayuki Suzuki
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  4. Etsuo Moriya
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  5. Masayuki Yamaguchi
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  6. Hideaki Kitamura
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  7. Kouzou Hanai
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  8. Izumi O. Umeda
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  9. Masahiro Fukushi
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  10. Noriyuki Moriyama
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  11. Hirofumi Fujii
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Corresponding author

Correspondence to Hirofumi Fujii.

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Tsuda, K., Aikawa, N., Suzuki, T. et al. Segmental acquisition method for stationary objects in 18F-fluorodeoxyglucose positron emission tomography tests. Jpn J Radiol 28, 591–601 (2010). https://doi.org/10.1007/s11604-010-0482-5

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  • DOI: https://doi.org/10.1007/s11604-010-0482-5

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