A Review of Hypoxia Imaging Using 18F-Fluoromisonidazole Positron Emission Tomography

Methods Mol Biol. 2024:2755:133-140. doi: 10.1007/978-1-0716-3633-6_9.

Abstract

Tumor hypoxia is an essential factor related to malignancy, prognosis, and resistance to treatment. Positron emission tomography (PET) is a modality that visualizes the distribution of radiopharmaceuticals administered into the body. PET imaging with [18F]fluoromisonidazole ([18F]FMISO) identifies hypoxic tissues. Unlike [18F]fluorodeoxyglucose ([18F]FDG)-PET, fasting is not necessary for [18F]FMISO-PET, but the waiting time from injection to image acquisition needs to be relatively long (e.g., 2-4 h). [18F]FMISO-PET images can be displayed on an ordinary commercial viewer on a personal computer (PC). While visual assessment is fundamental, various quantitative indices such as tumor-to-muscle ratio have also been proposed. Several novel hypoxia tracers have been invented to compensate for the limitations of [18F]FMISO.

Keywords: Hypoxia radiotracer; PET; Positron emission tomography; [14C]misonidazole; [18F]FMISO; [18F]FMISO-PET; [18F]fluorodeoxyglucose; [18F]fluoromisonidazole.

MeSH terms

  • Fasting
  • Fluorodeoxyglucose F18
  • Humans
  • Hypoxia / diagnostic imaging
  • Misonidazole*
  • Positron-Emission Tomography*

Substances

  • Fluorodeoxyglucose F18
  • fluoromisonidazole
  • Misonidazole