Comparison of Xtreme CT and DXA Bone Densitometry
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Purpose
Dual-energy x-ray absorptiometry (DXA) is currently the most widely used tool for determining bone density. However, most experts consider DXA an imperfect and intermediate technology. DXA is subject to artifact from arthritis and body composition, and also cannot account for geometric or material properties of bone which are also important components of bone strength.
Xtreme CT (high-resolution peripheral quantitative computed tomography, HR-pQCT) is a new technology with dramatically improved spatial resolution. It is able to define bones' cortical and trabecular surfaces in a three-dimensional manner, and therefore provides information on bone microarchitecture as well as bone density. As such, it may provide new information about characteristics of bone strength.
The purpose of this study is to compare Xtreme CT to DXA measurements of bone density, and also to generate a normative database of healthy young adults. This cross-sectional study involves a single visit where both Xtreme CT and DXA measurements will be obtained for a single time-point. This normative database will allow us to generate clinically relevant comparisons between the two imaging technologies.
| Condition |
|---|
|
Bone Density |
| Study Type: | Observational |
| Study Design: | Observational Model: Cohort Time Perspective: Cross-Sectional |
- Xtreme CT [ Time Frame: single measurement at baseline ] [ Designated as safety issue: No ]Bone imaging of forearm and lower leg
- DXA [ Time Frame: single measurement at baseline ] [ Designated as safety issue: No ]Bone imaging of spine, hip, total body, and forearm
| Estimated Enrollment: | 400 |
| Study Start Date: | August 2010 |
| Estimated Primary Completion Date: | August 2013 (Final data collection date for primary outcome measure) |
| Groups/Cohorts |
|---|
| Normative database |
Eligibility| Ages Eligible for Study: | 20 Years to 40 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | Yes |
| Sampling Method: | Non-Probability Sample |
Healthy adult volunteers
Inclusion Criteria:
- Adults age 20-40 years
Exclusion Criteria:
- Pregnancy
- History of bone modifying diseases (hyperparathyroidism, Paget's, hyperthyroidism, renal failure, nephrolithiasis, liver disease, eating disorder)
- History of amenorrhea
- Use of chronic steroids for >3 months
Contacts and Locations| United States, Massachusetts | |
| Massachusetts General Hospital | |
| Boston, Massachusetts, United States, 02114 | |
| Principal Investigator: | Joel S Finkelstein, MD | Massachusetts General Hospital |
More Information
No publications provided
| Responsible Party: | Joel S. Finkelstein, MD, Principal Investigator, Massachusetts General Hospital |
| ClinicalTrials.gov Identifier: | NCT01199991 History of Changes |
| Other Study ID Numbers: | 2010P000462 |
| Study First Received: | September 7, 2010 |
| Last Updated: | June 4, 2012 |
| Health Authority: | United States: Institutional Review Board |
ClinicalTrials.gov processed this record on May 23, 2013