Imaging Cold-Activated Brown Adipose Tissue Using Dynamic T2*-Weighted Magnetic Resonance Imaging and 2-Deoxy-2-[18F]fluoro-D-glucose Positron Emission Tomography
| Autor: | Bart D. van Rooijen, Wouter D. van Marken Lichtenbelt, Felix M. Mottaghy, Anouk A.J.J. van der Lans, Joachim E. Wildberger, Walter H. Backes, Boudewijn Brans, Patrick Schrauwen |
|---|---|
| Přispěvatelé: | Humane Biologie, MUMC+: DA BV Medische staf (6), Beeldvorming, RS: NUTRIM - R1 - Metabolic Syndrome, RS: MHeNs School for Mental Health and Neuroscience |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Adult
Male STIMULATION positron emission tomography Adolescent Adipose tissue THERMOGENESIS White adipose tissue Sensitivity and Specificity DISEASE Active Bat Young Adult Adipose Tissue Brown Fluorodeoxyglucose F18 Brown adipose tissue Brain positron emission tomography Medicine Humans magnetic resonance imaging Radiology Nuclear Medicine and imaging HEALTHY medicine.diagnostic_test business.industry Reproducibility of Results Magnetic resonance imaging brown adipose tissue General Medicine QUANTIFICATION Image Enhancement Cold Temperature medicine.anatomical_structure Positron emission tomography Positron-Emission Tomography Female Radiopharmaceuticals SPINAL-CORD business Nuclear medicine Preclinical imaging MRI |
| Zdroj: | Investigative Radiology, 48(10), 708-714. LIPPINCOTT WILLIAMS & WILKINS |
| ISSN: | 1536-0210 0020-9996 |
| Popis: | Objectives: The objective of this study was to explore the use of magnetic resonance imaging (Mm) to identify and quantify active brown adipose tissue (BAT) in adult humans. 2-Deoxy-2-[F-18]fluoro-D-glucose (FDG) positron emission tomography (PET) combined with computed tomography was used as a reference method to identify active BAT depots and to guide the MRI data analysis.Materials and Methods: The ethics committee of the institute approved the protocol, and all participants provided written informed consent before participation. Both PET combined with computed tomography and MRI of BAT were performed in 11 healthy volunteers. Brown adipose tissue was activated by cooling the participants using a dedicated water-perfused suit. For the MRI examination of BAT, water-fat imaging and dynamic T2* imaging were performed at an effective temporal resolution of 2 minutes per volume. Water-fat images were derived from a multiecho MRI sequence using the Dixon technique.Results: 2-Deoxy-2-[F-18]fluoro-D-glucose PET identified active BAT in 8 of the 11 participants. Water-fat MRI showed that BAT depots had a fat fraction of 65.2% (7.0%) compared with 81.5% (5.4%) for the subcutaneous white adipose tissue (paired difference of 16.3% [4.9%]; P Conclusions: Although FDG-PET has superior contrast for identifying active BAT, the MRI temporal resolution provides insight in activation dynamics In addition, the flexibility of MRI allows for simultaneous mapping of tissue fat content and functional responses. The results indicate that MRI is a promising addition to PET for the identification of BAT and its activity responses to stimulation. An MRI-based methodology to quantify BAT activity is a highly desirable step in addressing the role of BAT in obesity disorders. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|