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RT Journal Article
SR Electronic
T1 Intraobserver and Interobserver Variability for Measuring the Wall Area of the Basilar Artery at the Level of the Trigeminal Ganglion on High-Resolution MR Images
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP E29
OP E32
DO 10.3174/ajnr.A2049
VO 32
IS 2
A1 Ma, N.
A1 Lou, X.
A1 Zhao, T.-Q.
A1 Wong, E.-H.-C.
A1 Jiang, W.-J.
YR 2011
UL http://www.ajnr.org/content/32/2/E29.abstract
AB 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. BAbasilar arteryCIconfidence intervalETLecho-train lengthFSEfast spin-echoHRMRIhigh-resolution MR imagingICCintraclass correlation coefficientPDWIproton attenuation−weighted imagingT1WIT1-weighted imagingT2WIT2-weighted imagingTIAtransient ischemic attackTOFtime of flightWAwall area