Quality Assurance Programs and Why They Matter
Includes a Live Web Event on 04/26/2026 at 11:00 AM (EDT)
Quality Assurance Programs and Why They Matter
Sunday, April 26, 2026, 11:00am - 12:00pm Eastern Time (NY/USA)
Description and Objectives
This session will provide DXA technologists with a comprehensive review of quality assurance and troubleshooting principles essential for maintaining accurate and reproducible bone density measurements. Participants will examine routine quality-control practices, including the use of control charts, the establishment of action limits, and criteria for determining when manufacturer service intervention is required. The program will also focus on applying least significant change (LSC) values derived from precision studies to accurately assess longitudinal changes in bone mineral density. In addition, participants will examine differences among DXA scanners and software platforms, emphasizing the critical role of cross-calibration in ensuring valid clinical interpretation and continuity of patient care when comparing measurements across systems.
After attending this lecture, participants will be able to:
- Describe general quality assurance and troubleshooting principles, including the use of control charts, setting action limits, and determining when service intervention is required.
- Implement least significant change (LSC) values derived from precision studies to assess longitudinal changes in bone density.
- Discuss scanner differences and the importance of cross-calibration when comparing measurements across systems.
Handouts
All speakers are requested to provide handouts/lecture slides for registered attendees. Those that are provided for this session will be uploaded to the handouts tab and can be accessed/downloaded from that tab.
Lawrence Jankowski, CBDT
Chief DXA Technologist/Research Coordinator
Illinois Bone and Joint Institute, LLC
Lawrence Jankowski is the chief DXA technologist and a research coordinator for Illinois Bone and Joint Institute, a multi-disciplinary 100+ physician practice with over 20 locations within Chicago and surrounding suburbs, specializing in orthopedic and rheumatologic health and sports performance and fitness. He started clinical imaging as a nuclear medicine technologist in 1978, performing both single- and dual- photon absorptiometry in beginning in 1987, and switched to DXA in 1990. He is also registered in radiology (limited), and is certified by the International Society for Clinical Densitometry (ISCD) first as a CDT in 1996, and then CBDT in 2001.
In addition to his clinical and research duties, he is a technical instructor for the ISCD bone density courses, serves on the editorial board for the Journal of Clinical Densitometry, chairman of the Facility Accreditation Program, He has presented numerous posters on bone densitometry at scientific meetings, including the ASBMR, AAOS, NOF, as well as ISCD. Most recently, he served as task force chair for the 2019 Position Development Conference on cross-calibration and LSC determination in multiple scanner environments.
ASRT Credit
This session is approved by ASRT for 1.00 Category A credits.