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Cerebellar tonsil ectopia measurement in type I Chiari malformation patients show poor inter-operator reliability.

Braden J LawrenceAintzane UrbizuPhilip A AllenFrancis LothR Shane TubbsAlexander C BunckJan-Robert KrögerBrandon G RocqueCasey MaduraJason A ChenMark G LucianoRichard G EllenbogenJohn N OshinskiBermans J IskandarBryn A Martin
Published in: Fluids and barriers of the CNS (2018)
The results demonstrated a large average range (7.7 mm) of measurements among the seven expert operators and support that, if economically feasible, two radiologists should make independent measurements before radiologic diagnosis of CM-I and surgery is contemplated. In the future, an objective diagnostic parameter for CM-I that utilizes automated algorithms and results in smaller inter-operator variation may improve patient selection.
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