Vasculitis & polymyalgia rheumatica
Compression ratio: a novel method to quantify compressibility as a diagnostic measurement in giant cell arteritis
Authors' conclusion
Compression ratio (CR) is a novel quantifiable measure that contributes to the ultrasound assessment of GCA.
Study context
- Population
- Patients undergoing US assessment for giant cell arteritis (GCA) (65.8% females)65.8% females
- Participants
- 304 patients
- Comparison
- Compression ratio vs halo count for diagnosis of GCA
- GCAn = 72
- Not-GCAn = 232reference
- Outcome
- Relationship of CR (ratio of uncompressed to compressed arterial cross-sectional areas) with GCA diagnosis
Methodological detailssingle skilled clinician
- Single skilled clinician
Performance
As reported in the abstract
CR values (individual patient mean or lowest CR)
Suggested threshold compression ratio (CR) for predicting GCA diagnosis
≤2.3
Original publication
Compression ratio: a novel method to quantify compressibility as a diagnostic measurement in giant cell arteritis. Rheumatology (Oxford). Published 12 December 2024. doi:10.
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