Interrater Reliability in the Measurement of Flow Characteristics on Color-Coded Quantitative DSA of Brain AVMs.
Kazim H NarsinhKerstin MuellerJ NelsonJonathan MassachiD C MurphAlexander CopelanSteven W HettsVan HalbachRandall T HigashidaAdib A AblaMatthew R AmansChristopher F DowdHelen KimDaniel L CookePublished in: AJNR. American journal of neuroradiology (2020)
Interrater reliability in deriving color-coded parametric DSA measurements such as MTT is poor so minor differences among raters may result in a large variance in MTT and TTP results, partly due to the sensitivity and 2D nature of the technique. Reliability can be improved by defining a standard projection, feeding artery, and draining vein for analysis.