A DXA Whole Body Composition Cross-Calibration Experience: Evaluation With Humans, Spine, and Whole Body Phantoms
نویسندگان
چکیده
منابع مشابه
Whole-body DXA evaluation in HIV patients
Background After the introduction of highly active antiretroviral therapy for the treatment of HIV infection, metabolic abnormalities were increasingly observed, associated with both protease inhibitors and nucleoside reverse transcriptase inhibitors, characterized by abnormal fat distribution in the body (lipoatrophy, lipohypertrophy or both), hyperglycemia and lean tissue mass wasting. Howeve...
متن کاملEvaluation of a new body composition phantom for quality control and cross-calibration of DXA devices.
This study evaluated a new body composition phantom and its use for quality control and cross-calibration of dual-energy X-ray absorptiometry (DXA) instruments for measurements of body composition. We imaged the variable composition phantom (Lunar, Madison, WI) on eight different DXA devices. Deviations of up to 7% fat were observed when we compared the percent fat values measured by the differ...
متن کاملIndividual Calibration of Whole-body and Partial-body Counters by Means of Voxel Phantoms
accuracy of activity determination by means of whole-body and partial-body counters is no longer determined by errors in counting statistics, but by the bias caused by calibration. This is true in particular of low-energy photon emitters, such as Pb-210, U-235, Th-234 (daughter product of U-238), and Am-241. In addition, these nuclides in general show a very inhomogeneous distribution in the bo...
متن کاملWhole Body Dual X-Ray Absorptiometry (DXA) to Determine Body Composition
PLEASE NOTE: Contracts exclude from coverage, among other things, services or procedures that are considered investigational or cosmetic. Providers may bill members for services or procedures that are considered investigational or cosmetic. Providers are encouraged to inform members before rendering such services that the members are likely to be financially responsible for the cost of these se...
متن کاملMathematical Calibration of a Whole-Body Counter
This paper describes the mathematical efficiency calibration of the whole-body counter at Forschungszentrum Jülich using Monte Carlo codes and mathematical anthropomorphic phantoms. As a prerequisite for the Monte Carlo simulations a precise model of the 4 high-purity germanium (HPGe) detectors had to be developed. Because the technical data provided by the manufacturer were not sufficient for ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Clinical Densitometry
سال: 2016
ISSN: 1094-6950
DOI: 10.1016/j.jocd.2015.04.003