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T-score Comparability Between GE Lunar Prodigy and Norland Excel Densitometers (Wildwood)

This study has been completed.
Information provided by (Responsible Party):
University of Wisconsin, Madison Identifier:
First received: January 3, 2008
Last updated: October 1, 2015
Last verified: April 2010
Differences in determining bone density scores have been found when comparing different bone density machines. Reducing differences between machines will improve diagnostic agreement for patients measured at different clinics. This study will test if this difference exists between the Norland Excel, such as the one at Wildwood Clinic, and the GE Healthcare Lunar Prodigy at the UW Osteoporosis Clinical Research Center.

Bone Densitometry

Study Type: Observational
Study Design: Time Perspective: Retrospective
Official Title: T-score Comparability Between GE Lunar Prodigy and Norland Excel Densitometers

Resource links provided by NLM:

Further study details as provided by University of Wisconsin, Madison:

Primary Outcome Measures:
  • Spine and hip BMD and T-score measurements will be compared between densitometry machines. [ Time Frame: 2 weeks ]

Estimated Enrollment: 35
Study Start Date: February 2006
Study Completion Date: December 2006
Primary Completion Date: December 2006 (Final data collection date for primary outcome measure)
diagnosed with normal bone density by Norland Excel
diagnosed with osteopenia by Norland Excel densitometer
diagnosed with osteoporosis by Norland Excel densitometer


Ages Eligible for Study:   40 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
ambulatory women age ≥ 40 who have recently had a spine and hip DXA at the Wildwood Clinic on a Norland Excel densitometer

Inclusion Criteria:

  • Ambulatory women age 40 years and older
  • Recent spine and hip DXA at Wildwood clinic in Madison, WI
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00593437

United States, Wisconsin
University of Wisconsin Osteoporosis Clinical and Research Program
Madison, Wisconsin, United States, 53705
Sponsors and Collaborators
University of Wisconsin, Madison
Principal Investigator: Neil Binkley, MD University of Wisconsin - Institute on Aging
  More Information

Responsible Party: University of Wisconsin, Madison Identifier: NCT00593437     History of Changes
Other Study ID Numbers: 2006-1053
Study First Received: January 3, 2008
Last Updated: October 1, 2015

Keywords provided by University of Wisconsin, Madison:
bone density diagnostic equipment discrepancies processed this record on May 22, 2017