Molecular imaging of brown adipose tissue in health and disease

M. Bauwens, R. Wierts, B. van Royen, J. Bucerius, W. Backes, F. Mottaghy, B. Brans

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

PURPOSE: Brown adipose tissue (BAT) has transformed from an interfering tissue in oncological 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) to an independent imaging research field. This review takes the perspective from the imaging methodology on which human BAT research has come to rely on heavily. METHODS: This review analyses relevant PubMed-indexed publications that discuss molecular imaging methods of BAT. In addition, reported links between BAT and human diseases such as obesity are discussed, and the possibilities for imaging in these fields are highlighted. Radiopharmaceuticals aiming at several different biological mechanisms of BAT are discussed and evaluated. RESULTS: Prospective, dedicated studies allow visualization of BAT function in a high percentage of human subjects. BAT dysfunction has been implicated in obesity, linked with diabetes and associated with cachexia and atherosclerosis. Presently, 18F-FDG PET/CT is the most useful tool for evaluating therapies aiming at BAT activity. In addition to 18F-FDG, other radiopharmaceuticals such as 99mTc-sestamibi, 123I-metaiodobenzylguanidine (MIBG), 18F-fluorodopa and 18F-14(R,S)-[18F]fluoro-6-thia-heptadecanoic acid (FTHA) may have a potential for visualizing other aspects of BAT activity. MRI methods are under continuous development and provide the prospect of functional imaging without ionizing radiation. CONCLUSION: Molecular imaging of BAT can be used to quantitatively assess different aspects of BAT metabolic activity.
Original languageEnglish
Pages (from-to)776-791
Number of pages16
JournalEuropean Journal of Nuclear Medicine and Molecular Imaging
Volume41
Issue number4
DOIs
Publication statusPublished - Apr 2014

Keywords

  • Brown adipose tissue
  • Molecular imaging
  • PET/CT
  • Radiopharmaceuticals
  • Obesity
  • Cachexia
  • DIET-INDUCED THERMOGENESIS
  • F-18-FLUOROBENZYL TRIPHENYL PHOSPHONIUM
  • RAW MACROPHAGES SUPPRESSES
  • MESSENGER-RNA INDUCTION
  • BLOOD-FLOW
  • FDG UPTAKE
  • UNCOUPLING PROTEIN-1
  • F-18-FDG PET/CT
  • OXIDATIVE-METABOLISM
  • OUTDOOR TEMPERATURE

Cite this