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Investigation of the effectiveness of no-reference metric in image evaluation in nuclear medicine

Author

Listed:
  • Shigeaki Higashiyama
  • Yutaka Katayama
  • Atsushi Yoshida
  • Nahoko Inoue
  • Takashi Yamanaga
  • Takao Ichida
  • Yukio Miki
  • Joji Kawabe

Abstract

Background: In nuclear medicine, normalized mean square error (NMSE) is widely used for image quality evaluation and machine adjustment. However, evaluating clinical images in nuclear medicine using NMSE necessitates acquiring a reference image, which is time consuming and impractical. Therefore, it is necessary to explore no-reference metrics, such as perception-based image quality evaluator (PIQE) and natural image quality evaluator (NIQE), as alternatives for evaluating the quality of clinical images used in nuclear medicine. Purpose: To examine whether no-reference metrics can be applied to image quality evaluations for clinical images in nuclear medicine. Methods: Images of the Hoffman Brain Phantom containing 18F–fluoro-2-deoxy-D-glucose (FDG) were obtained using Biograph Vision (Siemens Co., Ltd). From the collected images, 14 images with varying pixel counts and acquisition times were created. Sixteen images were visually evaluated by five image experts and ranked accordingly. Image quality was assessed using NMSE, PIQE, and NIQE, and rankings were calculated based on these scores. Results: The Spearman’s significance test revealed a strong correlation between image quality evaluations using PIQE and visual evaluations by specialists (p

Suggested Citation

  • Shigeaki Higashiyama & Yutaka Katayama & Atsushi Yoshida & Nahoko Inoue & Takashi Yamanaga & Takao Ichida & Yukio Miki & Joji Kawabe, 2024. "Investigation of the effectiveness of no-reference metric in image evaluation in nuclear medicine," PLOS ONE, Public Library of Science, vol. 19(11), pages 1-23, November.
    • Handle: RePEc:plo:pone00:0310305
    DOI: 10.1371/journal.pone.0310305
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