Differentiation of Hemorrhage from Contrast Enhancement Using Dual-Layer Spectral CT in Patients Transferred for Acute Stroke
Acute stroke patients transferred to thrombectomy capable centers (TCC), undergo a CT head exam upon arrival at the TCC to evaluate for ASPECTS decay and intracranial hemorrhage. In patients who received iodinated contrast prior to transfer, parenchymal enhancement may simulate hemorrhage on this post-transfer CT. We report two cases utilizing CT spectral imaging to differentiate between parenchymal contrast enhancement and hemorrhage in this setting. TCC may consider dual-energy or dual-layer (spectral) imaging for this patient cohort.
Gulko, E., Ali, S., Gomes, W., Gandhi, C., & Mehta, H. (2021). Differentiation of Hemorrhage from Contrast Enhancement Using Dual-Layer Spectral CT in Patients Transferred for Acute Stroke. Clinical Imaging, 69, 75-78. https://doi.org/10.1016/j.clinimag.2020.06.046