Katrina Chu1, Stijn A Bos1,2, Corey M Gill1,3, Martin Torriani1, Miriam A Bredella4. 1. Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Yawkey 6E, 55 Fruit Street, Boston, MA, 02114, USA. 2. Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands. 3. Department of Medicine, Icahn School of Medicine at Mount Sinai, 1468 Madison Ave, New York, NY, 10029, USA. 4. Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Yawkey 6E, 55 Fruit Street, Boston, MA, 02114, USA. mbredella@mgh.harvard.edu.
Abstract
OBJECTIVE: The purpose of our study was to determine the role of brown adipose tissue (BAT) in cancer progression. MATERIALS AND METHODS: Our study was approved by our institutional review board and Health Insurance Portability and Accountability Act-compliant. Our study group comprised 132 cancer patients (116 f, 16 m; mean age 50 ± 16 years) who underwent F18-FDG PET/CT per standard clinical protocol, for staging or surveillance of cancer. We included patients who were BAT-positive on PET/CT and had clinical follow-up data available for at least 12 months or until tumor recurrence or tumor-related death, whichever occurred first. BAT volume by PET/CT was quantified by PET-CT Viewer shareware. Clinical information including tumor type, tumor recurrence, survival, and outside temperature at time of scan were recorded. Cox proportional hazard models were used to determine longitudinal associations between BAT volume and tumor recurrence/mortality. RESULTS: There were 55 tumor recurrences/tumor-related deaths over a median follow-up period of 71 (33; 110 interquartile range) months. Higher BAT volume was associated with an increased likelihood of tumor recurrence/tumor-associated mortality after adjustment for covariates (p = 0.03). CONCLUSION: BAT volume, assessed using routine PET/CT, is a predictor of tumor recurrence/mortality in patients with cancer, independent of other factors that can influence BAT activity, such as sex, age, BMI, or tumor type.
OBJECTIVE: The purpose of our study was to determine the role of brown adipose tissue (BAT) in cancer progression. MATERIALS AND METHODS: Our study was approved by our institutional review board and Health Insurance Portability and Accountability Act-compliant. Our study group comprised 132 cancerpatients (116 f, 16 m; mean age 50 ± 16 years) who underwent F18-FDG PET/CT per standard clinical protocol, for staging or surveillance of cancer. We included patients who were BAT-positive on PET/CT and had clinical follow-up data available for at least 12 months or until tumor recurrence or tumor-related death, whichever occurred first. BAT volume by PET/CT was quantified by PET-CT Viewer shareware. Clinical information including tumor type, tumor recurrence, survival, and outside temperature at time of scan were recorded. Cox proportional hazard models were used to determine longitudinal associations between BAT volume and tumor recurrence/mortality. RESULTS: There were 55 tumor recurrences/tumor-related deaths over a median follow-up period of 71 (33; 110 interquartile range) months. Higher BAT volume was associated with an increased likelihood of tumor recurrence/tumor-associated mortality after adjustment for covariates (p = 0.03). CONCLUSION: BAT volume, assessed using routine PET/CT, is a predictor of tumor recurrence/mortality in patients with cancer, independent of other factors that can influence BAT activity, such as sex, age, BMI, or tumor type.
Entities:
Keywords:
Body composition; Brown adipose tissue (BAT); FDG PET/CT; Survival; Tumor recurrence
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