Optimization of collateral grading on computer tomography angiography.
Leonardo PisaniDiogo C HaussenMahmoud MohammadenCatarina Perry da CamaraGabriel M RodriguesMehdi BouslamaAlhamza Al-BayatiRanliang HuNicholas BianchiNirav Ravindra BhattMichael FrankelRaul G NogueiraPublished in: Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences (2023)
A dual-phase CTA is significantly similar to a mCTA assessment of collateral score and may be applied at community-based centers. Absolute or relative thresholds for torcula opacification may be used to identify poor bolus-scan timing thus preventing erroneous assumptions of poor collaterals on sCTA.