Stephane Desouches DO, Presenter: Nothing to Disclose

Wasfia Alikhan, Abstract Co-Author: Nothing to Disclose

Jessica Lea Sanchez MD, Abstract Co-Author: Nothing to Disclose

Margaret Aarons Stull MD, Abstract Co-Author: Nothing to Disclose

Dual-energy x-ray absorptiometry (DXA) is the most commonly employed imaging modality for evaluating bone mineral density. Precise measurements are necessary to accurately diagnose osteopenia and osteoporosis in asymptomatic people, to predict individual risk of fragility fractures, and to guide treatment by the referring physician. Standardized measurements must be consistent and reproducible in order to ensure legitimate comparison of serial studies. The purpose of this exhibit is to illustrate technically correct DXA scans along with common imaging pitfalls and how to avoid them.

Examples of commonly encountered pitfalls in the interpretation of DXA scans are illustrated in a case-based format. Suggestions on how to avoid and overcome these problems are provided. Cases will include: - Patient positioning - Degenerative disease and scoliosis - Paget’s disease and bony metastases - Adjacent or superimposed gastrointestinal contrast - Post-surgical and post-traumatic changes - Soft tissue calcifications - Metallic implants and external metal  

http://abstract.rsna.org/uploads/2014/14002242/14002242_38gg.pdf

Desouches, S, Alikhan, W, Sanchez, J, Stull, M, Bone Densitometry: A Resident’s Guide to Common Pitfalls and How to Avoid Them.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14002242.html