RecruitingNCT03621306

DXA Study of Precision and Reliability

Precision and Reliability of Dual X-ray Absorptiometry (DXA) Testing

Sponsor

Penn State University

Enrollment

400 participants

Start Date

Jun 16, 2008

Study Type

OBSERVATIONAL

Conditions

Body Composition Bone and Bones

Summary

The purpose of the study is to assess precision of the GE Lunar iDXA, Hologic Horizon W DXA scanner, and the Stratec peripheral quantitative computed tomography (pQCT) scanner. Aim 1: To assess standard deviation (SD) and coefficient of variation (CV) of testing bone mineral, bone geometry, and soft tissues in inanimate objects and adults. Tests on adults will be structured to assess: 1. Within- and between-day variability of testing 2. Within- and between-technician variability of testing 3. Variability due to positioning and post-scan processing 4. Variability due to different DXA scanning equipment Aim 2: To assess the least significant change (LSC) for testing bone mineral and soft tissues in adults. Aim 3: To assess strengths and limitations of DXA and pQCT testing, including sensitivity to movement, rate of re-rescanning, etc. which are crucial components for demonstrating feasibility in grant applications. Aim 4: To construct a database of DXA and pQCT test results and quality control procedures, showing our laboratory's quality control level.

Eligibility

Min Age: 18 Years

Plain Language Summary

Simplified for easier understanding

This clinical trial is studying a medical device called DXA and pQCT precision testing for people with body composition and bone and bones. The study is currently recruiting participants at 1 location.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

DEVICEDXA and pQCT precision testing

The participants are only being observed; there is no intervention other than DXA and pQCT testing for the purposes of looking at instrument/technician precision..