Abstract
SUMMARY: We evaluated the intraobserver and interobserver variability for WA measurement of an atherosclerotic BA by using HRMRI. Ten consecutive patients underwent HRMRI, and the WA of the BA at the level of the trigeminal ganglion was measured by 2 independent readers and repeated by 1 reader 1 month later. There was strong agreement for intraobserver and interobserver measurements in the ICC and by the Bland-Altman method. Measurement of the WA in an atherosclerotic BA by HRMRI was reproducible.
Abbreviations
- BA
- basilar artery
- CI
- confidence interval
- ETL
- echo-train length
- FSE
- fast spin-echo
- HRMRI
- high-resolution MR imaging
- ICC
- intraclass correlation coefficient
- PDWI
- proton attenuation−weighted imaging
- T1WI
- T1-weighted imaging
- T2WI
- T2-weighted imaging
- TIA
- transient ischemic attack
- TOF
- time of flight
- WA
- wall area
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