Long-Term vs. Short-Term Precision Measurement of Dual-Energy X-Ray Absorptiometry (DXA) Scans and the Impact of Interpreting Change in Bone Mineral Density (BMD) At Follow-Up

2010 ◽  
Vol 13 (1) ◽  
pp. 136
Author(s):  
Sarah L. Morgan ◽  
Gary M. Kiebzak
Keyword(s):  
Bone Mineral Density ◽  
Precision Measurement ◽  
Dual Energy ◽  
Mineral Density ◽  
Short Term ◽  
X Ray ◽  
Dxa Scans ◽  
The Impact

Distortion of dual energy X-ray images by faecal masses in a child with type 1 diabetes

2020 ◽  
Vol 13 (5) ◽  
pp. e235312
Author(s):  
Nikhil Shah ◽  
Veena Ekbote ◽  
Vaman Khadilkar ◽  
Anuradha Khadilkar
Keyword(s):  
Bone Mineral Density ◽  
Type 1 Diabetes ◽  
Dual Energy ◽  
Regions Of Interest ◽  
Mineral Density ◽  
Dxa Scan ◽  
X Ray ◽  
Numeric Data ◽  
Dxa Scans

Dual energy X-ray absorptiometry (DXA) scanning is the most common investigating modality used to assess bone mineral density (BMD). Conditions causing tissue calcification and artefacts such as metallic objects may mislead the results of the DXA scan. We present here a case of a child with diabetes where the DXA images were distorted by faecal lumps, leading to falsely elevated BMD and an error in interpretation of the DXA scans. Our case suggests that DXA software may not, at times, differentiate between bone and other high-attenuating material within the regions of interest. Thus, DXA images should also be visually examined and verified with the numeric data before report preparation in these patients.

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