Vertebral fracture severity assessment on anteroposterior radiographs with a new semi-quantitative technique
Authors' conclusion
We propose a new semi-quantitative grading system for vertebral fracture severity assessment on AP spine radiographs.
Study context
- Population
- Females with spine anteroposterior (AP) and lateral radiographs assessed for osteoporotic vertebral fracture (OVF)84 fractured vertebrae
- Participants
- 50 females
- Comparison
- AP radiograph semi-quantitative (SQ) grading by radiologist vs trainee, compared with Genant SQ grading on lateral radiographs
- Outcome
- Correct assignment of OVF grade on AP radiographs vs lateral radiographs
Methodological detailssemi-quantitative grading scheme, lateral radiographs as reference
- Semi-quantitative grading scheme
- Lateral radiographs as reference
Performance
As reported in the abstract
| Test or model | Grade 1 correctly assigned | Grade 2 correctly assigned | Grade 3 correctly assigned | Weighted Kappa including normal vertebrae | Weighted Kappa not including normal vertebrae |
|---|---|---|---|---|---|
| Radiologist | 84.2% | 91.7% | 77.2% | 0.944 | 0.883 |
| Trainee | 68.4% | 79.2% | 81.8% | 0.891 | 0.830 |
Grade 1 correctly assigned
Radiologist84.2%
Trainee68.4%
Grade 2 correctly assigned
Radiologist91.7%
Trainee79.2%
Grade 3 correctly assigned
Radiologist77.2%
Trainee81.8%
Weighted Kappa including normal vertebrae
Radiologist0.944
Trainee0.891
Weighted Kappa not including normal vertebrae
Radiologist0.883
Trainee0.830
Further findings
- OVFs on lateral radiographs, by grade
- 84 · events
Height-to-width ratio of half vertebrae
- Range of height-to-width ratio
- 1.32-1.48
Original publication
Vertebral fracture severity assessment on anteroposterior radiographs with a new semi-quantitative technique. Osteoporos Int. Published 31 January 2024. doi:10.
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