DXA
Low-dose dual-energy X-ray for bone density and body composition.
What is DXA?
Low-dose dual-energy X-ray for bone density and body composition.
How it works: Refer to modality standard acquisition and reconstruction pipeline.
Advantages
- ✓Noninvasive or minimally invasive
- ✓Widely available in centers
- ✓Guides management
Limitations
- ⚠Limited by operator or motion
- ⚠May need contrast or prep
- ⚠Not perfect specificity
Preparation Checklist
0 of 3 completed
⚖️DXA vs CT
Related Imaging Modalities
Combine with CT/MRI/US for complementary detail.
CT
CT scans use X-rays to create detailed cross-sectional images of the body. They are particularly useful for detecting bone fractures, tumors, and internal bleeding.
MRI
MRI uses powerful magnets and radio waves to produce detailed images of organs and soft tissues. Excellent for brain, spine, and joint imaging.
Ultrasound
Ultrasound uses sound waves to create real-time images. Commonly used for pregnancy monitoring and examining organs like the heart, liver, and kidneys.
Browse DXA Terms
Explore common terms in DXA reports, each with detailed explanations, clinical significance, and related lab tests to help you understand your imaging results. lab tests.
Dxa Example 1
Representative finding for this modality.
Dxa Example 2
Representative finding for this modality.
Dxa Example 3
Representative finding for this modality.
Osteopenia on DXA Scan
Bone mineral density 1.0 to 2.5 standard deviations below young adult mean (T-score -1.0 to -2.5)
Osteoporosis on DXA Scan
T-scores and Z-scores measuring bone mineral density. T-score ≤ -2.5 indicates osteoporosis; -1.0 to -2.5 indicates osteopenia.
Vertebral Fracture Assessment on DXA
Compression fractures visible as loss of vertebral height, anterior wedging, endplate deformity. Graded as mild, moderate, or severe based on height loss percentage.
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