Using Adipose Measures from Health Care Provider-Based Imaging Data for Discovery.
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ABSTRACT: The location and type of adipose tissue is an important factor in metabolic syndrome. A database of picture archiving and communication system (PACS) derived abdominal computerized tomography (CT) images from a large health care provider, Geisinger, was used for large-scale research of the relationship of volume of subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) with obesity-related diseases and clinical laboratory measures. Using a "greedy snake" algorithm and 2,545 CT images from the Geisinger PACS, we measured levels of VAT, SAT, total adipose tissue (TAT), and adipose ratio volumes. Sex-combined and sex-stratified association testing was done between adipose measures and 1,233 disease diagnoses and 37 clinical laboratory measures. A genome-wide association study (GWAS) for adipose measures was also performed. SAT was strongly associated with obesity and morbid obesity. VAT levels were strongly associated with type 2 diabetes-related diagnoses (p?=?1.5?×?10-58), obstructive sleep apnea (p?=?7.7?×?10-37), high-density lipoprotein (HDL) levels (p?=?1.42?×?10-36), triglyceride levels (p?=?1.44?×?10-43), and white blood cell (WBC) counts (p?=?7.37?×?10-9). Sex-stratified tests revealed stronger associations among women, indicating the increased influence of VAT on obesity-related disease outcomes particularly among women. The GWAS identified some suggestive associations. This study supports the utility of pursuing future clinical and genetic discoveries with existing imaging data-derived adipose tissue measures deployed at a larger scale.
SUBMITTER: Cha EDK
PROVIDER: S-EPMC6180992 | biostudies-literature | 2018
REPOSITORIES: biostudies-literature
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