title: Application of electromagnetic and sound waves in nutritional assessment.
abstract: Four relatively new techniques that apply electromagnetic or sound waves promise to play a major role in the study of human body composition and in clinical nutritional assessment. Computerized axial tomography, nuclear magnetic resonance, infrared interactance, and ultrasonography provide capabilities for measuring the following: total body and regional fat volume; regional skeletal muscle volume; brain, liver, kidney, heart, spleen, and tumor volume; lean tissue content of triglyceride, iron, and high-energy intermediates; bone density; and cardiac function. Each method is reviewed with regard to basic principles, research and clinical applications, strengths, and limitations.
authors.affiliation: Obesity Research Center, St. Luke's-Roosevelt Hospital Center, New York, New York.
authors.forename: S B
authors.initials: SB
authors.lastname: Heymsfield
authors.forename: R
authors.initials: R
authors.lastname: Rolandelli
authors.forename: K
authors.initials: K
authors.lastname: Casper
authors.forename: R G
authors.initials: RG
authors.lastname: Settle
authors.forename: M
authors.initials: M
authors.lastname: Koruda
mesh_terms: D002247:Carbon Isotopes; D006801:Humans; D007259:Infrared Rays; D009682:Magnetic Resonance Spectroscopy; D009752:Nutritional Status; D010758:Phosphorus; D011522:Protons; D012964:Sodium; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
chemical_list: D002247:Carbon Isotopes; D011522:Protons; D010758:Phosphorus; D012964:Sodium