Correlation between 18F-FDG dosage and SNR on various BMI patient groups tested in NEMA IEC PET phantom

Appl Radiat Isot. 2021 Oct:176:109885. doi: 10.1016/j.apradiso.2021.109885. Epub 2021 Aug 4.

Abstract

The present study was conducted to determine quantitatively the correlation between injected radiotracer and signal-to-noise ratio (SNR) based on differences in physiques and stages of cancer. Eight different activities were evaluated with modelled National Electrical Manufacturers Association (NEMA) of the International Electrotechnical Commission (IEC) PET's phantom with nine different tumour-to-background ratio (TBR). The findings suggest that the optimal value of dosage is required for all categories of patients in the early stages of cancer diagnosis.

Keywords: Body mass index; Monte Carlo N-Particle; Positron emission tomography; Tumor-to-background ratio.

MeSH terms

  • Body Mass Index*
  • Fluorine Radioisotopes / administration & dosage*
  • Humans
  • Neoplasms / diagnostic imaging
  • Phantoms, Imaging*
  • Signal-To-Noise Ratio

Substances

  • Fluorine Radioisotopes
  • Fluorine-18