Karine Sahakyan MD, PhD, Presenter: Nothing to Disclose

Philip A. Araoz MD, Abstract Co-Author: Nothing to Disclose

Francisco Lopez-Jimenez, Abstract Co-Author: Nothing to Disclose

Naima Covassin, Abstract Co-Author: Nothing to Disclose

Virend Somers, Abstract Co-Author: Nothing to Disclose

1. To emphasize the importance of fat distribution vs BMI 2. To understand clinical application for assessment of adipose tissue  

BMI cutoff values to diagnose obesity have low sensitivity to identify adiposity, as they fail to identify half of the people with excess body fat percentage. 1. Simple techniques a. Waist circumference, Waist-to-Hip Ratio, Waist-to-Height Ratio b. Body impedance analysis c. Air displacement plethysmography 2. Imaging techniques to quantify adipose tissue a. Ultrasonography b. Dual Energy X-ray Absoprtiometry (DXA) c. Computed Tomography (CT) d. Magnetic Resonance Imaging (MRI) 3. Differentiation between different types of adipose tissue a. Visceral fat b. Subcutaneous fat 4. Clinical application a. Possible additional information on routine scans at screening (adding to CT colonoscopy to identify subjects at higher risk of colorectal cancer and poor postoperative outcomes) b. Quantification of fat percentage can be added to routine DXA screening for osteoporosis c. Quantification of visceral fat may provide risk stratification for development of pathologic conditions associated with visceral obesity d. Assessment of adipose tissue provides additional information for follow-up after lifestyle modification or pharmacologic intervention  

http://abstract.rsna.org/uploads/2014/14002360/14002360_npom.pdf

Sahakyan, K, Araoz, P, Lopez-Jimenez, F, Covassin, N, Somers, V, Adipose Tissue Distribution is More Important than Body Mass Index.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14002360.html